diff --git a/cases.csv b/cases.csv
index 4dd8f65e..2f6e36ca 100644
--- a/cases.csv
+++ b/cases.csv
@@ -143,6 +143,7 @@ GSw_GasCurve,"Select natural gas supply curve (0 = cendiv, 1 = national + cendiv
 GSw_GasCC_H_1x1,Turn on/off both gas-CC_H_1x1 and gas-CC_H_1x1-CCS_mod/max plant options,0; 1,0,
 GSw_GasCC_H_2x1,Turn on/off both gas-CC_H_2x1 and gas-CC_H_2x1-CCS_mod/max plant options,0; 1,0,
 GSw_GasCT_Aero,Turn on/off gas-CT_aeroderivative technology option,0; 1,0,
+GSw_GasPriceAdjMethod,"Select method for adjusting gas prices (0 = uniform wintertime markup, 1 = daily adjustments based on regional temperatures)",0; 1,1,
 GSw_GasSector,Select sector scope of gas curves,electric_sector; energy_sector,electric_sector,
 GSw_GenMandate,Turn on/off national Gen Requirement. 2 turns on and applies constraint at busbar.,0; 1; 2,0,
 GSw_GenMandateList,Select technology list for national generation standard (see inputs/national_generation/nat_gen_tech_frac.csv),RE; Nuclear; NuclearCCS,RE,
diff --git a/inputs/fuelprices/gasreg_degree_day_price_mult_regression_params.csv b/inputs/fuelprices/gasreg_degree_day_price_mult_regression_params.csv
new file mode 100644
index 00000000..cdcc6720
--- /dev/null
+++ b/inputs/fuelprices/gasreg_degree_day_price_mult_regression_params.csv
@@ -0,0 +1,16 @@
+param,California,East_North_Central,East_South_Central,Mid_Atlantic,Mountain,New_England,Northwest,South_Atlantic,Southwest,West_North_Central,West_South_Central
+beta_CDD,0.03,0.009,0.01,0.035,0.029,0.05,0.031,0.019,0.02,0.01,0.011
+beta_HDD,0.016,0.011,0.011,0.029,0.012,0.036,0.02,0.022,0.015,0.015,0.014
+alpha,-0.321,-0.208,-0.092,-0.448,-0.383,-0.844,-0.554,-0.227,-0.436,-0.273,-0.18
+alpha_JAN,0.122,-0.214,-0.072,-0.201,0.046,-0.01,0.054,-0.05,0.227,-0.351,-0.066
+alpha_FEB,0.094,-0.156,-0.047,-0.354,0.049,-0.122,0.029,-0.06,0.22,-0.277,-0.028
+alpha_MAR,-0.03,-0.193,-0.075,-0.481,-0.085,-0.308,-0.089,-0.114,0.037,-0.267,-0.072
+alpha_APR,-0.015,-0.113,-0.002,-0.224,-0.059,-0.159,-0.08,-0.026,0.045,-0.159,-0.022
+alpha_MAY,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0
+alpha_JUN,-0.044,0.046,-0.077,0.029,0.015,0.143,0.099,-0.064,-0.08,0.045,-0.056
+alpha_JUL,-0.045,0.059,-0.113,-0.088,-0.001,0.04,0.222,-0.083,-0.002,0.069,-0.056
+alpha_AUG,0.05,0.117,-0.12,-0.066,0.104,0.08,0.318,-0.077,0.111,0.133,-0.006
+alpha_SEP,0.079,0.118,-0.134,-0.076,0.153,0.144,0.296,-0.062,0.121,0.12,0.051
+alpha_OCT,0.182,0.01,-0.205,-0.271,0.093,-0.032,0.208,-0.086,0.203,-0.018,0.071
+alpha_NOV,0.19,-0.083,-0.078,-0.319,0.095,-0.147,0.213,-0.043,0.262,-0.156,0.045
+alpha_DEC,0.247,-0.197,-0.098,-0.367,0.105,-0.102,0.16,-0.066,0.315,-0.31,-0.056
diff --git a/inputs/fuelprices/gasreg_degree_days.csv b/inputs/fuelprices/gasreg_degree_days.csv
new file mode 100644
index 00000000..087e9e2f
--- /dev/null
+++ b/inputs/fuelprices/gasreg_degree_days.csv
@@ -0,0 +1,83 @@
+t,ddtype,California,East_North_Central,East_South_Central,Mid_Atlantic,Mountain,New_England,Northwest,South_Atlantic,Southwest,West_North_Central,West_South_Central
+2010,CDD,757,963,1974,913,700,634,137,2271,2202,1095,2754
+2010,HDD,2706,6188,3954,5539,6173,5935,5599,3163,2693,6570,2450
+2011,CDD,830,858,1725,840,724,553,112,2260,2335,1074,3112
+2011,HDD,2791,6173,3347,5471,6430,6113,6106,2564,2737,6570,2113
+2012,CDD,1047,974,1760,819,932,563,154,2163,2428,1221,2913
+2012,HDD,2401,5356,2880,4960,5520,5563,5675,2305,2309,5520,1648
+2013,CDD,1011,689,1438,685,888,540,245,2001,2296,892,2535
+2013,HDD,2309,6623,3651,5827,6392,6425,5527,2736,2663,7140,2325
+2014,CDD,1201,609,1491,600,731,420,254,2000,2207,812,2474
+2014,HDD,1765,7196,3935,6190,5776,6676,5073,2961,2162,7309,2421
+2015,CDD,1195,729,1717,809,788,556,304,2397,2262,941,2742
+2015,HDD,2000,6165,3224,5762,5469,6520,4832,2496,2339,6093,2085
+2016,CDD,1073,958,1956,891,852,625,186,2404,2370,1072,2882
+2016,HDD,2110,5701,3095,5338,5551,5928,5082,2464,2129,5792,1750
+2017,CDD,1171,708,1585,665,855,451,279,2247,2390,910,2718
+2017,HDD,2204,5684,2837,5318,5682,6037,5790,2239,1964,6004,1580
+2018,CDD,1044,972,1928,890,878,668,235,2411,2362,1134,2855
+2018,HDD,2281,6434,3479,5769,6000,6323,5547,2638,2486,6975,2252
+2019,CDD,913,832,1886,787,774,536,130,2503,2275,951,2759
+2019,HDD,2636,6427,3181,5736,6422,6538,5696,2392,2571,7082,2143
+2020,CDD,1141,831,1636,848,782,645,193,2335,2502,964,2735
+2020,HDD,2472,5855,3064,5198,6204,5822,5484,2263,2665,6326,1812
+2021,CDD,1050,911,1611,837,818,604,318,2226,2099,1093,2644
+2021,HDD,2567,5747,3166,5261,6097,5799,5610,2366,2506,6061,1911
+2022,CDD,1117,816,1728,838,791,647,283,2302,2186,1050,2992
+2022,HDD,2521,6344,3438,5635,6683,6019,5869,2523,2872,6905,2200
+2023,CDD,782,713,1669,683,583,518,209,2258,2157,1042,3117
+2023,HDD,2956,5417,2826,4954,6642,5564,5710,2150,2963,5929,1725
+2024,CDD,1081,899,1859,867,766,620,235,2399,2371,1046,3073
+2024,HDD,2655,5306,3024,4981,6108,5643,5740,2271,2798,5716,1844
+2025,CDD,814,851,1773,845,710,609,246,2400,2131,1046,2901
+2025,HDD,2383,5952,3161,5319,5867,5924,5487,2344,2453,6383,1949
+2026,CDD,1104,856,1781,853,789,615,240,2415,2160,1051,2915
+2026,HDD,2431,5937,3148,5298,6120,5901,5753,2329,2592,6376,1942
+2027,CDD,1112,861,1788,860,789,621,242,2430,2142,1056,2928
+2027,HDD,2427,5923,3136,5277,6120,5879,5771,2313,2598,6369,1935
+2028,CDD,1120,866,1796,868,789,627,244,2445,2124,1061,2942
+2028,HDD,2424,5908,3123,5256,6119,5856,5789,2298,2605,6362,1928
+2029,CDD,1128,871,1803,876,789,633,246,2460,2106,1066,2955
+2029,HDD,2420,5894,3111,5235,6118,5833,5808,2283,2612,6355,1921
+2030,CDD,1137,876,1811,884,788,640,248,2476,2088,1071,2969
+2030,HDD,2417,5879,3098,5214,6117,5810,5826,2267,2619,6348,1914
+2031,CDD,1145,881,1818,892,788,646,250,2491,2072,1076,2982
+2031,HDD,2413,5864,3086,5193,6117,5787,5844,2251,2623,6341,1907
+2032,CDD,1153,886,1826,900,788,652,252,2507,2056,1081,2996
+2032,HDD,2410,5850,3073,5172,6117,5764,5863,2235,2627,6334,1900
+2033,CDD,1161,890,1834,908,788,659,254,2522,2040,1086,3010
+2033,HDD,2406,5835,3060,5151,6117,5741,5881,2220,2631,6327,1893
+2034,CDD,1169,895,1841,915,787,665,255,2538,2024,1092,3023
+2034,HDD,2403,5820,3048,5130,6117,5718,5900,2204,2635,6319,1886
+2035,CDD,1177,900,1849,923,787,671,257,2553,2008,1097,3037
+2035,HDD,2399,5806,3035,5109,6117,5695,5918,2188,2639,6312,1879
+2036,CDD,1185,905,1857,931,787,678,259,2569,1991,1102,3050
+2036,HDD,2396,5791,3022,5088,6117,5672,5937,2173,2644,6304,1872
+2037,CDD,1193,910,1864,939,786,684,261,2585,1975,1107,3064
+2037,HDD,2392,5776,3009,5068,6117,5649,5955,2157,2648,6297,1865
+2038,CDD,1202,915,1872,947,786,690,263,2600,1958,1112,3077
+2038,HDD,2389,5762,2996,5047,6117,5626,5974,2141,2653,6289,1858
+2039,CDD,1210,920,1879,955,786,697,265,2616,1942,1117,3091
+2039,HDD,2385,5747,2984,5026,6118,5603,5992,2125,2657,6282,1852
+2040,CDD,1218,925,1887,963,785,703,267,2632,1925,1122,3104
+2040,HDD,2382,5732,2971,5005,6118,5579,6011,2110,2662,6274,1845
+2041,CDD,1226,930,1895,971,785,710,269,2648,1908,1128,3118
+2041,HDD,2378,5717,2958,4984,6118,5556,6029,2094,2667,6267,1838
+2042,CDD,1234,935,1902,978,785,716,271,2663,1892,1133,3131
+2042,HDD,2374,5703,2945,4963,6118,5533,6048,2079,2671,6259,1831
+2043,CDD,1242,940,1910,986,784,722,273,2679,1875,1138,3145
+2043,HDD,2371,5688,2933,4943,6119,5510,6066,2063,2676,6252,1825
+2044,CDD,1250,945,1918,994,784,729,275,2695,1858,1143,3158
+2044,HDD,2367,5673,2920,4922,6119,5487,6085,2047,2681,6244,1818
+2045,CDD,1258,950,1925,1002,784,735,277,2711,1841,1148,3172
+2045,HDD,2364,5658,2907,4901,6119,5464,6103,2032,2686,6236,1811
+2046,CDD,1267,955,1933,1010,783,741,278,2727,1824,1153,3185
+2046,HDD,2360,5644,2894,4880,6120,5440,6122,2016,2690,6229,1805
+2047,CDD,1275,960,1940,1018,783,748,280,2742,1807,1159,3199
+2047,HDD,2357,5629,2881,4859,6120,5417,6140,2001,2695,6221,1798
+2048,CDD,1283,965,1948,1026,783,754,282,2758,1790,1164,3212
+2048,HDD,2353,5614,2869,4838,6121,5394,6159,1985,2700,6213,1791
+2049,CDD,1291,970,1956,1033,782,760,284,2774,1772,1169,3226
+2049,HDD,2350,5599,2856,4818,6121,5371,6177,1970,2706,6206,1785
+2050,CDD,1299,975,1963,1041,782,767,286,2790,1755,1174,3239
+2050,HDD,2346,5585,2843,4797,6122,5348,6196,1955,2711,6198,1778
diff --git a/inputs/scalars.csv b/inputs/scalars.csv
index fdca0077..21427611 100644
--- a/inputs/scalars.csv
+++ b/inputs/scalars.csv
@@ -23,12 +23,12 @@ csp_sm_2,2.4,"--fraction-- solar multiple for csp2"
 csp_sm_3,1.3,"--fraction-- solar multiple for csp3"
 csp_sm_4,1.0,"--fraction-- solar multiple for csp4"
 csp_sm_baseline,2.4,"--fraction-- baseline solar multiple to normalize other CSP solar multiples by"
+degree_days_base_temperature,18.33,"--temperature in degrees Celsius to use as the baseline temperature for calculating degree days"
 distloss,0.05,"--fraction-- distribution loss rate from bus to final consumption. A generic estimate of distribution losses taken many years ago from AEO 2006"
 euros_dollar,1.124,"--USD/Euro-- dollars per euro exchange rate from treasury department (https://fiscal.treasury.gov/files/reports-statements/treasury-reporting-rates-exchange/ratesofexchangeasofdecember312019.pdf)"
 forced_outage_rate_h2_smr,0.1,"--fraction-- forced outage rate of steam methane reforming"
 gas_elasticity,0.76,"--fraction-- gas supply curve elasticity. long run price elasticity as estimated by: https://www.diw.de/documents/publikationen/73/diw_01.c.441773.de/dp1372.pdf"
 gas_scale,1000000,"--unitless-- conversion factor for gas-related parameters to help in scaling the problem"
-gasprice_ref_frac_adder,0.04,"--fraction-- fraction by which to multiply gasprice_ref for winter"
 gassupplyscale,-0.5,"shifting of reference gas price bin. gassupply scale determines how far the bins reference quantity should deviate from its reference price. With gassupply scale = -0.5, the center of the reference price bin will be the reference quantity. with gassupplyscale = 0, the end of the reference gas price's bin will the limit for that reference bin."
 geothermal_availability,0.75,"--fraction-- Existing geothermal plants have a 75% availability rate based on historical capacity factors"
 h2_crp_compressor,15,"--years-- capital recovery period (i.e., financial lifetime / evaluation period) for hydrogen compressors."
diff --git a/inputs/userinput/futurefiles.csv b/inputs/userinput/futurefiles.csv
index 9d30d0d4..dfaeaecd 100644
--- a/inputs/userinput/futurefiles.csv
+++ b/inputs/userinput/futurefiles.csv
@@ -94,6 +94,8 @@ d_szn_7yr.csv,.csv,1,None,9999,None,9999,0,constant,None,None,new,
 dac_assumptions.csv,.csv,1,None,9999,None,9999,0,constant,None,None,done,constant
 dac_elec.csv,.csv,0,None,t,i,1,0,linear_10,None,None,new,
 dac_gas.csv,.csv,0,None,t,i,1,0,linear_10,None,None,new,
+daily_gasprice_multipliers_r.h5,.h5,0,None,year,datetime,1,keepindex,linear_5,None,None,done,linear_5
+daily_gasprice_multipliers_cendiv.h5,.h5,0,None,year,datetime,1,keepindex,linear_5,None,None,done,linear_5
 deflator.csv,.csv,1,None,9999,None,9999,0,constant,None,None,done,constant
 degradation_adj.csv,.csv,1,None,9999,None,9999,0,constant,None,None,new,
 degradation_annual.csv,.csv,1,None,9999,None,9999,0,constant,None,None,done,constant
@@ -160,6 +162,8 @@ fuel2tech.csv,.csv,1,None,9999,None,9999,0,constant,None,None,new,
 fuelbin.csv,.csv,1,None,9999,None,9999,0,constant,None,None,new,
 futurefiles.csv,.csv,1,None,9999,None,9999,0,constant,None,None,so meta,constant
 gasprice_ref.csv,.csv,0,None,wide,cendiv,1,0,constant,0,None,done,linear_5
+gasreg_degree_day_price_mult_regression_params.csv,.csv,1,None,9999,None,9999,0,constant,None,None,new,
+gasreg_degree_days.csv,.csv,0,None,t,ddtype,1,0,linear_5,None,None,new,linear_5
 gb.csv,.csv,1,None,9999,None,9999,0,constant,None,None,new,
 gbin_min.csv,.csv,1,None,9999,None,9999,0,constant,None,None,new,
 gbin.csv,.csv,1,None,9999,None,9999,0,constant,None,None,new,
diff --git a/inputs/zones/PJMcounty/hierarchy_from134.csv b/inputs/zones/PJMcounty/hierarchy_from134.csv
index c1b5a1a7..e33efda8 100644
--- a/inputs/zones/PJMcounty/hierarchy_from134.csv
+++ b/inputs/zones/PJMcounty/hierarchy_from134.csv
@@ -1,135 +1,135 @@
-ba,nercr,transreg,transgrp,cendiv,st,interconnect,country,usda_region,h2ptcreg,hurdlereg,aggreg
-p1,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,WA,western,USA,pacific,Northwest,Puget_Sound_Energy_Inc,p1
-p2,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,WA,western,USA,pacific,Northwest,Bonneville_Power_Administration,p2
-p3,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,WA,western,USA,pacific,Northwest,Avista_Corp,p3
-p4,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,WA,western,USA,pacific,Northwest,PUD_No2_of_Grant_County,p4
-p5,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,OR,western,USA,pacific,Northwest,Bonneville_Power_Administration,p5
-p6,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,OR,western,USA,pacific,Northwest,PacifiCorp_West,p6
-p7,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,OR,western,USA,pacific,Northwest,Bonneville_Power_Administration,p7
-p8,WECC_NW,NorthernGrid,NorthernGrid_South,Pacific,CA,western,USA,pacific,California,PacifiCorp_West,p8
-p9,WECC_CA,CAISO,CAISO,Pacific,CA,western,USA,pacific,California,CAISO,p9
-p10,WECC_CA,CAISO,CAISO,Pacific,CA,western,USA,pacific,California,CAISO,p10
-p11,WECC_CA,CAISO,CAISO,Pacific,CA,western,USA,pacific,California,CAISO,p11
-p12,WECC_NW,NorthernGrid,NorthernGrid_South,Mountain,NV,western,USA,mountain,Mountain,Nevada_Power_Co,p12
-p13,WECC_NW,NorthernGrid,NorthernGrid_South,Mountain,NV,western,USA,mountain,Mountain,Nevada_Power_Co,p13
-p14,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,ID,western,USA,mountain,Northwest,Avista_Corp,p14
-p15,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,ID,western,USA,mountain,Northwest,Idaho_Power_Co,p15
-p16,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,ID,western,USA,mountain,Northwest,Idaho_Power_Co,p16
-p17,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,MT,western,USA,mountain,Mountain,Northwestern_Energy,p17
-p18,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,MT,western,USA,mountain,Mountain,Northwestern_Energy,p18
-p19,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,MT,western,USA,mountain,Mountain,WAPA_Upper_Great_Plains_West,p19
-p20,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,MT,western,USA,mountain,Mountain,Northwestern_Energy,p20
-p21,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,WY,western,USA,mountain,Mountain,PacifiCorp_East,p21
-p22,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,WY,western,USA,mountain,Mountain,PacifiCorp_East,p22
-p23,WECC_NW,WestConnect,WestConnect_North,Mountain,WY,western,USA,mountain,Mountain,WAPA_Rocky_Mountain_Region,p23
-p24,WECC_NW,WestConnect,WestConnect_North,Mountain,WY,western,USA,mountain,Mountain,WAPA_Rocky_Mountain_Region,p24
-p25,WECC_NW,NorthernGrid,NorthernGrid_South,Mountain,UT,western,USA,mountain,Mountain,PacifiCorp_East,p25
-p26,WECC_NW,NorthernGrid,NorthernGrid_South,Mountain,UT,western,USA,mountain,Mountain,PacifiCorp_East,p26
-p27,WECC_SW,WestConnect,WestConnect_South,Mountain,AZ,western,USA,mountain,Southwest,WAPA_Desert_Southwest_Region,p27
-p28,WECC_SW,WestConnect,WestConnect_South,Mountain,AZ,western,USA,mountain,Southwest,Arizona_Public_Service_Co,z28
-p29,WECC_SW,WestConnect,WestConnect_South,Mountain,AZ,western,USA,mountain,Southwest,Arizona_Public_Service_Co,p29
-p30,WECC_SW,WestConnect,WestConnect_South,Mountain,AZ,western,USA,mountain,Southwest,Arizona_Public_Service_Co,z28
-p31,WECC_SW,WestConnect,WestConnect_South,Mountain,NM,western,USA,mountain,Southwest,Public_Service_Co_of_New_Mexico,p31
-p32,WECC_NW,WestConnect,WestConnect_North,Mountain,SD,western,USA,northern-plains,Plains,WAPA_Rocky_Mountain_Region,p32
-p33,WECC_NW,WestConnect,WestConnect_North,Mountain,CO,western,USA,mountain,Mountain,Public_Service_Co_of_Colorado,p33
-p34,WECC_NW,WestConnect,WestConnect_North,Mountain,CO,western,USA,mountain,Mountain,Public_Service_Co_of_Colorado,p34
-p35,SPP,SPP,SPP_North,West_North_Central,MT,eastern,USA,mountain,Mountain,SPP,p35
-p36,SPP,SPP,SPP_North,West_North_Central,ND,eastern,USA,northern-plains,Plains,SPP,p36
-p37,MISO,MISO,MISO_North,West_North_Central,ND,eastern,USA,northern-plains,Plains,MISO,p37
-p38,SPP,SPP,SPP_North,West_North_Central,SD,eastern,USA,northern-plains,Plains,SPP,p38
-p39,SPP,SPP,SPP_North,West_North_Central,NE,eastern,USA,northern-plains,Plains,SPP,p39
-p40,SPP,SPP,SPP_North,West_North_Central,NE,eastern,USA,northern-plains,Plains,SPP,p40
-p41,SPP,SPP,SPP_North,West_North_Central,NE,eastern,USA,northern-plains,Plains,SPP,p41
-p42,MISO,MISO,MISO_North,West_North_Central,MN,eastern,USA,lake-states,Midwest,MISO,p42
-p43,MISO,MISO,MISO_North,West_North_Central,MN,eastern,USA,lake-states,Midwest,MISO,p43
-p44,MISO,MISO,MISO_North,West_North_Central,MN,eastern,USA,lake-states,Midwest,MISO,p44
-p45,MISO,MISO,MISO_North,West_North_Central,IA,eastern,USA,corn-belt,Midwest,MISO,p45
-p46,MISO,MISO,MISO_North,East_North_Central,WI,eastern,USA,lake-states,Midwest,MISO,p46
-p47,SPP,SPP,SPP_South,West_South_Central,NM,eastern,USA,mountain,Southwest,SPP,p47
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+p91,SERC_SE,SERTP,SERTP,South_Atlantic,FL,eastern,USA,southeast,Florida,Southern_Co_Services_Inc,p91,South_Atlantic
+p92,SERC_C,SERTP,SERTP,East_South_Central,TN,eastern,USA,appalachia,Southeast,Tennessee_Valley_Authority,p92,East_South_Central
+p93,SERC_C,SERTP,SERTP,East_South_Central,KY,eastern,USA,appalachia,MidAtlantic,Tennessee_Valley_Authority,p93,East_South_Central
+p94,SERC_SE,SERTP,SERTP,South_Atlantic,GA,eastern,USA,southeast,Southeast,Southern_Co_Services_Inc,p94,South_Atlantic
+p95,SERC_E,SERTP,SERTP,South_Atlantic,SC,eastern,USA,southeast,Southeast,Duke_Energy_Carolinas_LLC,p95,South_Atlantic
+p96,SERC_E,SERTP,SERTP,South_Atlantic,SC,eastern,USA,southeast,Southeast,South_Carolina_Electric_Gas_Co,p96,South_Atlantic
+p97,SERC_E,SERTP,SERTP,South_Atlantic,NC,eastern,USA,appalachia,Southeast,Duke_Energy_Carolinas_LLC,p97,South_Atlantic
+p98,SERC_E,SERTP,SERTP,South_Atlantic,NC,eastern,USA,appalachia,Southeast,Duke_Energy_Progress_East,p98,South_Atlantic
+p99,PJM,PJM,PJM_East,South_Atlantic,VA,eastern,USA,appalachia,MidAtlantic,PJM,p99,South_Atlantic
+p100,PJM,PJM,PJM_East,South_Atlantic,VA,eastern,USA,appalachia,MidAtlantic,PJM,p100,South_Atlantic
+p101,SERC_F,FRCC,FRCC,South_Atlantic,FL,eastern,USA,southeast,Florida,Seminole_Electric_Coop_Inc,p101,South_Atlantic
+p102,SERC_F,FRCC,FRCC,South_Atlantic,FL,eastern,USA,southeast,Florida,Florida_Power_and_Light,p102,South_Atlantic
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+p124,PJM,PJM,PJM_East,South_Atlantic,VA,eastern,USA,appalachia,MidAtlantic,PJM,p124,South_Atlantic
+p125,PJM,PJM,PJM_East,South_Atlantic,DE,eastern,USA,northeast,MidAtlantic,PJM,p125,South_Atlantic
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+p128,NPCC_NY,NYISO,NYISO,Mid_Atlantic,NY,eastern,USA,northeast,NewYork,NYISO,p128,Mid_Atlantic
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+p130,NPCC_NE,ISONE,ISONE,New_England,NH,eastern,USA,northeast,NewEngland,ISONE,p130,New_England
+p131,NPCC_NE,ISONE,ISONE,New_England,MA,eastern,USA,northeast,NewEngland,ISONE,p131,New_England
+p132,NPCC_NE,ISONE,ISONE,New_England,CT,eastern,USA,northeast,NewEngland,ISONE,p132,New_England
+p133,NPCC_NE,ISONE,ISONE,New_England,RI,eastern,USA,northeast,NewEngland,ISONE,p133,New_England
+p134,NPCC_NE,ISONE,ISONE,New_England,ME,eastern,USA,northeast,NewEngland,ISONE,p134,New_England
diff --git a/inputs/zones/UTcounty/hierarchy_from134.csv b/inputs/zones/UTcounty/hierarchy_from134.csv
index c1b5a1a7..e33efda8 100644
--- a/inputs/zones/UTcounty/hierarchy_from134.csv
+++ b/inputs/zones/UTcounty/hierarchy_from134.csv
@@ -1,135 +1,135 @@
-ba,nercr,transreg,transgrp,cendiv,st,interconnect,country,usda_region,h2ptcreg,hurdlereg,aggreg
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-p3,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,WA,western,USA,pacific,Northwest,Avista_Corp,p3
-p4,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,WA,western,USA,pacific,Northwest,PUD_No2_of_Grant_County,p4
-p5,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,OR,western,USA,pacific,Northwest,Bonneville_Power_Administration,p5
-p6,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,OR,western,USA,pacific,Northwest,PacifiCorp_West,p6
-p7,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,OR,western,USA,pacific,Northwest,Bonneville_Power_Administration,p7
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-p26,WECC_NW,NorthernGrid,NorthernGrid_South,Mountain,UT,western,USA,mountain,Mountain,PacifiCorp_East,p26
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-p132,NPCC_NE,ISONE,ISONE,New_England,CT,eastern,USA,northeast,NewEngland,ISONE,p132
-p133,NPCC_NE,ISONE,ISONE,New_England,RI,eastern,USA,northeast,NewEngland,ISONE,p133
-p134,NPCC_NE,ISONE,ISONE,New_England,ME,eastern,USA,northeast,NewEngland,ISONE,p134
+ba,nercr,transreg,transgrp,cendiv,st,interconnect,country,usda_region,h2ptcreg,hurdlereg,aggreg,gasreg
+p1,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,WA,western,USA,pacific,Northwest,Puget_Sound_Energy_Inc,p1,Northwest
+p2,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,WA,western,USA,pacific,Northwest,Bonneville_Power_Administration,p2,Northwest
+p3,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,WA,western,USA,pacific,Northwest,Avista_Corp,p3,Northwest
+p4,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,WA,western,USA,pacific,Northwest,PUD_No2_of_Grant_County,p4,Northwest
+p5,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,OR,western,USA,pacific,Northwest,Bonneville_Power_Administration,p5,Northwest
+p6,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,OR,western,USA,pacific,Northwest,PacifiCorp_West,p6,Northwest
+p7,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,OR,western,USA,pacific,Northwest,Bonneville_Power_Administration,p7,Northwest
+p8,WECC_NW,NorthernGrid,NorthernGrid_South,Pacific,CA,western,USA,pacific,California,PacifiCorp_West,p8,California
+p9,WECC_CA,CAISO,CAISO,Pacific,CA,western,USA,pacific,California,CAISO,p9,California
+p10,WECC_CA,CAISO,CAISO,Pacific,CA,western,USA,pacific,California,CAISO,p10,California
+p11,WECC_CA,CAISO,CAISO,Pacific,CA,western,USA,pacific,California,CAISO,p11,California
+p12,WECC_NW,NorthernGrid,NorthernGrid_South,Mountain,NV,western,USA,mountain,Mountain,Nevada_Power_Co,p12,Mountain
+p13,WECC_NW,NorthernGrid,NorthernGrid_South,Mountain,NV,western,USA,mountain,Mountain,Nevada_Power_Co,p13,Mountain
+p14,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,ID,western,USA,mountain,Northwest,Avista_Corp,p14,Mountain
+p15,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,ID,western,USA,mountain,Northwest,Idaho_Power_Co,p15,Mountain
+p16,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,ID,western,USA,mountain,Northwest,Idaho_Power_Co,p16,Mountain
+p17,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,MT,western,USA,mountain,Mountain,Northwestern_Energy,p17,Mountain
+p18,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,MT,western,USA,mountain,Mountain,Northwestern_Energy,p18,Mountain
+p19,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,MT,western,USA,mountain,Mountain,WAPA_Upper_Great_Plains_West,p19,Mountain
+p20,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,MT,western,USA,mountain,Mountain,Northwestern_Energy,p20,Mountain
+p21,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,WY,western,USA,mountain,Mountain,PacifiCorp_East,p21,Mountain
+p22,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,WY,western,USA,mountain,Mountain,PacifiCorp_East,p22,Mountain
+p23,WECC_NW,WestConnect,WestConnect_North,Mountain,WY,western,USA,mountain,Mountain,WAPA_Rocky_Mountain_Region,p23,Mountain
+p24,WECC_NW,WestConnect,WestConnect_North,Mountain,WY,western,USA,mountain,Mountain,WAPA_Rocky_Mountain_Region,p24,Mountain
+p25,WECC_NW,NorthernGrid,NorthernGrid_South,Mountain,UT,western,USA,mountain,Mountain,PacifiCorp_East,p25,Mountain
+p26,WECC_NW,NorthernGrid,NorthernGrid_South,Mountain,UT,western,USA,mountain,Mountain,PacifiCorp_East,p26,Mountain
+p27,WECC_SW,WestConnect,WestConnect_South,Mountain,AZ,western,USA,mountain,Southwest,WAPA_Desert_Southwest_Region,p27,Southwest
+p28,WECC_SW,WestConnect,WestConnect_South,Mountain,AZ,western,USA,mountain,Southwest,Arizona_Public_Service_Co,z28,Southwest
+p29,WECC_SW,WestConnect,WestConnect_South,Mountain,AZ,western,USA,mountain,Southwest,Arizona_Public_Service_Co,p29,Southwest
+p30,WECC_SW,WestConnect,WestConnect_South,Mountain,AZ,western,USA,mountain,Southwest,Arizona_Public_Service_Co,z28,Southwest
+p31,WECC_SW,WestConnect,WestConnect_South,Mountain,NM,western,USA,mountain,Southwest,Public_Service_Co_of_New_Mexico,p31,Southwest
+p32,WECC_NW,WestConnect,WestConnect_North,West_North_Central,SD,western,USA,northern-plains,Plains,WAPA_Rocky_Mountain_Region,p32,West_North_Central
+p33,WECC_NW,WestConnect,WestConnect_North,Mountain,CO,western,USA,mountain,Mountain,Public_Service_Co_of_Colorado,p33,Mountain
+p34,WECC_NW,WestConnect,WestConnect_North,Mountain,CO,western,USA,mountain,Mountain,Public_Service_Co_of_Colorado,p34,Mountain
+p35,SPP,SPP,SPP_North,Mountain,MT,eastern,USA,mountain,Mountain,SPP,p35,Mountain
+p36,SPP,SPP,SPP_North,West_North_Central,ND,eastern,USA,northern-plains,Plains,SPP,p36,West_North_Central
+p37,MISO,MISO,MISO_North,West_North_Central,ND,eastern,USA,northern-plains,Plains,MISO,p37,West_North_Central
+p38,SPP,SPP,SPP_North,West_North_Central,SD,eastern,USA,northern-plains,Plains,SPP,p38,West_North_Central
+p39,SPP,SPP,SPP_North,West_North_Central,NE,eastern,USA,northern-plains,Plains,SPP,p39,West_North_Central
+p40,SPP,SPP,SPP_North,West_North_Central,NE,eastern,USA,northern-plains,Plains,SPP,p40,West_North_Central
+p41,SPP,SPP,SPP_North,West_North_Central,NE,eastern,USA,northern-plains,Plains,SPP,p41,West_North_Central
+p42,MISO,MISO,MISO_North,West_North_Central,MN,eastern,USA,lake-states,Midwest,MISO,p42,West_North_Central
+p43,MISO,MISO,MISO_North,West_North_Central,MN,eastern,USA,lake-states,Midwest,MISO,p43,West_North_Central
+p44,MISO,MISO,MISO_North,West_North_Central,MN,eastern,USA,lake-states,Midwest,MISO,p44,West_North_Central
+p45,MISO,MISO,MISO_North,West_North_Central,IA,eastern,USA,corn-belt,Midwest,MISO,p45,West_North_Central
+p46,MISO,MISO,MISO_North,East_North_Central,WI,eastern,USA,lake-states,Midwest,MISO,p46,East_North_Central
+p47,SPP,SPP,SPP_South,Mountain,NM,eastern,USA,mountain,Southwest,SPP,p47,Southwest
+p48,SPP,SPP,SPP_South,West_South_Central,TX,eastern,USA,southern-plains,Texas,SPP,p48,West_South_Central
+p49,SPP,SPP,SPP_South,West_South_Central,OK,eastern,USA,southern-plains,Plains,SPP,p49,West_South_Central
+p50,SPP,SPP,SPP_South,West_South_Central,OK,eastern,USA,southern-plains,Plains,SPP,p50,West_South_Central
+p51,SPP,SPP,SPP_South,West_South_Central,OK,eastern,USA,southern-plains,Plains,SPP,p51,West_South_Central
+p52,SPP,SPP,SPP_South,West_North_Central,KS,eastern,USA,northern-plains,Plains,SPP,p52,West_North_Central
+p53,SPP,SPP,SPP_South,West_North_Central,KS,eastern,USA,northern-plains,Plains,SPP,p53,West_North_Central
+p54,SPP,SPP,SPP_South,West_North_Central,MO,eastern,USA,corn-belt,Midwest,SPP,p54,West_North_Central
+p55,SPP,SPP,SPP_South,West_North_Central,MO,eastern,USA,corn-belt,Midwest,SPP,p55,West_North_Central
+p56,SPP,SPP,SPP_South,West_South_Central,AR,eastern,USA,delta-states,Delta,SPP,p56,West_South_Central
+p57,SPP,SPP,SPP_South,West_South_Central,TX,eastern,USA,southern-plains,Texas,SPP,p57,West_South_Central
+p58,MISO,MISO,MISO_South,West_South_Central,LA,eastern,USA,delta-states,Delta,MISO,p58,West_South_Central
+p59,WECC_SW,WestConnect,WestConnect_South,West_South_Central,TX,western,USA,southern-plains,Texas,El_Paso_Electric,p59,West_South_Central
+p60,ERCOT,ERCOT,ERCOT,West_South_Central,TX,texas,USA,southern-plains,Texas,ERCOT,p60,West_South_Central
+p61,ERCOT,ERCOT,ERCOT,West_South_Central,TX,texas,USA,southern-plains,Texas,ERCOT,p61,West_South_Central
+p62,ERCOT,ERCOT,ERCOT,West_South_Central,TX,texas,USA,southern-plains,Texas,ERCOT,p62,West_South_Central
+p63,ERCOT,ERCOT,ERCOT,West_South_Central,TX,texas,USA,southern-plains,Texas,ERCOT,p63,West_South_Central
+p64,ERCOT,ERCOT,ERCOT,West_South_Central,TX,texas,USA,southern-plains,Texas,ERCOT,p64,West_South_Central
+p65,ERCOT,ERCOT,ERCOT,West_South_Central,TX,texas,USA,southern-plains,Texas,ERCOT,p65,West_South_Central
+p66,MISO,MISO,MISO_South,West_South_Central,TX,eastern,USA,southern-plains,Texas,MISO,p66,West_South_Central
+p67,ERCOT,ERCOT,ERCOT,West_South_Central,TX,texas,USA,southern-plains,Texas,ERCOT,p67,West_South_Central
+p68,MISO,MISO,MISO_North,West_North_Central,MN,eastern,USA,lake-states,Midwest,MISO,p68,West_North_Central
+p69,MISO,MISO,MISO_North,West_North_Central,IA,eastern,USA,corn-belt,Midwest,MISO,p69,West_North_Central
+p70,MISO,MISO,MISO_North,West_North_Central,IA,eastern,USA,corn-belt,Midwest,MISO,p70,West_North_Central
+p71,MISO,MISO,MISO_Central,West_North_Central,MO,eastern,USA,corn-belt,Midwest,MISO,p71,West_North_Central
+p72,MISO,MISO,MISO_Central,West_North_Central,MO,eastern,USA,corn-belt,Midwest,MISO,p72,West_North_Central
+p73,MISO,MISO,MISO_Central,West_North_Central,MO,eastern,USA,corn-belt,Midwest,MISO,p73,West_North_Central
+p74,MISO,MISO,MISO_North,East_North_Central,MI,eastern,USA,lake-states,Midwest,MISO,p74,East_North_Central
+p75,MISO,MISO,MISO_North,East_North_Central,WI,eastern,USA,lake-states,Midwest,MISO,p75,East_North_Central
+p76,MISO,MISO,MISO_North,East_North_Central,WI,eastern,USA,lake-states,Midwest,MISO,p76,East_North_Central
+p77,MISO,MISO,MISO_North,East_North_Central,WI,eastern,USA,lake-states,Midwest,MISO,p77,East_North_Central
+p78,MISO,MISO,MISO_North,East_North_Central,WI,eastern,USA,lake-states,Midwest,MISO,p78,East_North_Central
+p79,MISO,MISO,MISO_North,East_North_Central,WI,eastern,USA,lake-states,Midwest,MISO,p79,East_North_Central
+p80,PJM,PJM,PJM_West,East_North_Central,IL,eastern,USA,corn-belt,Midwest,PJM,p80,East_North_Central
+p81,MISO,MISO,MISO_Central,East_North_Central,IL,eastern,USA,corn-belt,Midwest,MISO,p81,East_North_Central
+p82,MISO,MISO,MISO_Central,East_North_Central,IL,eastern,USA,corn-belt,Midwest,MISO,p82,East_North_Central
+p83,MISO,MISO,MISO_Central,East_North_Central,IL,eastern,USA,corn-belt,Midwest,MISO,p83,East_North_Central
+p84,MISO,MISO,MISO_Central,West_North_Central,MO,eastern,USA,corn-belt,Midwest,MISO,p84,West_North_Central
+p85,MISO,MISO,MISO_South,West_South_Central,AR,eastern,USA,delta-states,Delta,MISO,p85,West_South_Central
+p86,MISO,MISO,MISO_South,West_South_Central,LA,eastern,USA,delta-states,Delta,MISO,p86,West_South_Central
+p87,MISO,MISO,MISO_South,East_South_Central,MS,eastern,USA,delta-states,Delta,MISO,p87,East_South_Central
+p88,SERC_C,SERTP,SERTP,East_South_Central,MS,eastern,USA,delta-states,Delta,Tennessee_Valley_Authority,p88,East_South_Central
+p89,SERC_SE,SERTP,SERTP,East_South_Central,AL,eastern,USA,southeast,Southeast,Southern_Co_Services_Inc,p89,East_South_Central
+p90,SERC_SE,SERTP,SERTP,East_South_Central,AL,eastern,USA,southeast,Southeast,PowerSouth_Energy_Coop,p90,East_South_Central
+p91,SERC_SE,SERTP,SERTP,South_Atlantic,FL,eastern,USA,southeast,Florida,Southern_Co_Services_Inc,p91,South_Atlantic
+p92,SERC_C,SERTP,SERTP,East_South_Central,TN,eastern,USA,appalachia,Southeast,Tennessee_Valley_Authority,p92,East_South_Central
+p93,SERC_C,SERTP,SERTP,East_South_Central,KY,eastern,USA,appalachia,MidAtlantic,Tennessee_Valley_Authority,p93,East_South_Central
+p94,SERC_SE,SERTP,SERTP,South_Atlantic,GA,eastern,USA,southeast,Southeast,Southern_Co_Services_Inc,p94,South_Atlantic
+p95,SERC_E,SERTP,SERTP,South_Atlantic,SC,eastern,USA,southeast,Southeast,Duke_Energy_Carolinas_LLC,p95,South_Atlantic
+p96,SERC_E,SERTP,SERTP,South_Atlantic,SC,eastern,USA,southeast,Southeast,South_Carolina_Electric_Gas_Co,p96,South_Atlantic
+p97,SERC_E,SERTP,SERTP,South_Atlantic,NC,eastern,USA,appalachia,Southeast,Duke_Energy_Carolinas_LLC,p97,South_Atlantic
+p98,SERC_E,SERTP,SERTP,South_Atlantic,NC,eastern,USA,appalachia,Southeast,Duke_Energy_Progress_East,p98,South_Atlantic
+p99,PJM,PJM,PJM_East,South_Atlantic,VA,eastern,USA,appalachia,MidAtlantic,PJM,p99,South_Atlantic
+p100,PJM,PJM,PJM_East,South_Atlantic,VA,eastern,USA,appalachia,MidAtlantic,PJM,p100,South_Atlantic
+p101,SERC_F,FRCC,FRCC,South_Atlantic,FL,eastern,USA,southeast,Florida,Seminole_Electric_Coop_Inc,p101,South_Atlantic
+p102,SERC_F,FRCC,FRCC,South_Atlantic,FL,eastern,USA,southeast,Florida,Florida_Power_and_Light,p102,South_Atlantic
+p103,MISO,MISO,MISO_Central,East_North_Central,MI,eastern,USA,lake-states,Midwest,MISO,p103,East_North_Central
+p104,PJM,PJM,PJM_West,East_North_Central,MI,eastern,USA,lake-states,Midwest,PJM,p104,East_North_Central
+p105,MISO,MISO,MISO_Central,East_North_Central,IN,eastern,USA,corn-belt,Midwest,MISO,p105,East_North_Central
+p106,MISO,MISO,MISO_Central,East_North_Central,IN,eastern,USA,corn-belt,Midwest,MISO,p106,East_North_Central
+p107,MISO,MISO,MISO_Central,East_North_Central,IN,eastern,USA,corn-belt,Midwest,MISO,p107,East_North_Central
+p108,MISO,MISO,MISO_Central,East_South_Central,KY,eastern,USA,appalachia,MidAtlantic,MISO,p108,East_South_Central
+p109,PJM,PJM,PJM_East,East_South_Central,KY,eastern,USA,appalachia,MidAtlantic,PJM,p109,East_South_Central
+p110,PJM,PJM,PJM_East,East_South_Central,KY,eastern,USA,appalachia,MidAtlantic,PJM,p110,East_South_Central
+p111,PJM,PJM,PJM_East,East_North_Central,OH,eastern,USA,corn-belt,MidAtlantic,PJM,p111,East_North_Central
+p112,PJM,PJM,PJM_East,East_North_Central,OH,eastern,USA,corn-belt,MidAtlantic,PJM,p112,East_North_Central
+p113,PJM,PJM,PJM_East,East_North_Central,OH,eastern,USA,corn-belt,MidAtlantic,PJM,p113,East_North_Central
+p114,PJM,PJM,PJM_East,East_North_Central,OH,eastern,USA,corn-belt,MidAtlantic,PJM,p114,East_North_Central
+p115,PJM,PJM,PJM_East,Mid_Atlantic,PA,eastern,USA,northeast,MidAtlantic,PJM,p115,Mid_Atlantic
+p116,PJM,PJM,PJM_East,South_Atlantic,WV,eastern,USA,appalachia,MidAtlantic,PJM,p116,South_Atlantic
+p117,PJM,PJM,PJM_East,South_Atlantic,WV,eastern,USA,appalachia,MidAtlantic,PJM,p117,South_Atlantic
+p118,PJM,PJM,PJM_East,South_Atlantic,VA,eastern,USA,appalachia,MidAtlantic,PJM,p118,South_Atlantic
+p119,PJM,PJM,PJM_East,Mid_Atlantic,PA,eastern,USA,northeast,MidAtlantic,PJM,z122,Mid_Atlantic
+p120,PJM,PJM,PJM_East,Mid_Atlantic,PA,eastern,USA,northeast,MidAtlantic,PJM,p120,Mid_Atlantic
+p121,PJM,PJM,PJM_East,South_Atlantic,MD,eastern,USA,northeast,MidAtlantic,PJM,p121,South_Atlantic
+p122,PJM,PJM,PJM_East,Mid_Atlantic,PA,eastern,USA,northeast,MidAtlantic,PJM,z122,Mid_Atlantic
+p123,PJM,PJM,PJM_East,South_Atlantic,MD,eastern,USA,northeast,MidAtlantic,PJM,p123,South_Atlantic
+p124,PJM,PJM,PJM_East,South_Atlantic,VA,eastern,USA,appalachia,MidAtlantic,PJM,p124,South_Atlantic
+p125,PJM,PJM,PJM_East,South_Atlantic,DE,eastern,USA,northeast,MidAtlantic,PJM,p125,South_Atlantic
+p126,PJM,PJM,PJM_East,Mid_Atlantic,NJ,eastern,USA,northeast,MidAtlantic,PJM,p126,Mid_Atlantic
+p127,NPCC_NY,NYISO,NYISO,Mid_Atlantic,NY,eastern,USA,northeast,NewYork,NYISO,p127,Mid_Atlantic
+p128,NPCC_NY,NYISO,NYISO,Mid_Atlantic,NY,eastern,USA,northeast,NewYork,NYISO,p128,Mid_Atlantic
+p129,NPCC_NE,ISONE,ISONE,New_England,VT,eastern,USA,northeast,NewEngland,ISONE,p129,New_England
+p130,NPCC_NE,ISONE,ISONE,New_England,NH,eastern,USA,northeast,NewEngland,ISONE,p130,New_England
+p131,NPCC_NE,ISONE,ISONE,New_England,MA,eastern,USA,northeast,NewEngland,ISONE,p131,New_England
+p132,NPCC_NE,ISONE,ISONE,New_England,CT,eastern,USA,northeast,NewEngland,ISONE,p132,New_England
+p133,NPCC_NE,ISONE,ISONE,New_England,RI,eastern,USA,northeast,NewEngland,ISONE,p133,New_England
+p134,NPCC_NE,ISONE,ISONE,New_England,ME,eastern,USA,northeast,NewEngland,ISONE,p134,New_England
diff --git a/inputs/zones/state_groups.csv b/inputs/zones/state_groups.csv
index e79e8eb2..8ba028b9 100644
--- a/inputs/zones/state_groups.csv
+++ b/inputs/zones/state_groups.csv
@@ -1,49 +1,49 @@
-st,country,cendiv,usda_region,h2ptcreg
-AL,USA,East_South_Central,southeast,Southeast
-AR,USA,West_South_Central,delta-states,Delta
-AZ,USA,Mountain,mountain,Southwest
-CA,USA,Pacific,pacific,California
-CO,USA,Mountain,mountain,Mountain
-CT,USA,New_England,northeast,NewEngland
-DE,USA,South_Atlantic,northeast,MidAtlantic
-FL,USA,South_Atlantic,southeast,Florida
-GA,USA,South_Atlantic,southeast,Southeast
-IA,USA,West_North_Central,corn-belt,Midwest
-ID,USA,Mountain,mountain,Northwest
-IL,USA,East_North_Central,corn-belt,Midwest
-IN,USA,East_North_Central,corn-belt,Midwest
-KS,USA,West_North_Central,northern-plains,Plains
-KY,USA,East_South_Central,appalachia,MidAtlantic
-LA,USA,West_South_Central,delta-states,Delta
-MA,USA,New_England,northeast,NewEngland
-MD,USA,South_Atlantic,northeast,MidAtlantic
-ME,USA,New_England,northeast,NewEngland
-MI,USA,East_North_Central,lake-states,Midwest
-MN,USA,West_North_Central,lake-states,Midwest
-MO,USA,West_North_Central,corn-belt,Midwest
-MS,USA,East_South_Central,delta-states,Delta
-MT,USA,Mountain,mountain,Mountain
-NC,USA,South_Atlantic,appalachia,Southeast
-ND,USA,West_North_Central,northern-plains,Plains
-NE,USA,West_North_Central,northern-plains,Plains
-NH,USA,New_England,northeast,NewEngland
-NJ,USA,Mid_Atlantic,northeast,MidAtlantic
-NM,USA,Mountain,mountain,Southwest
-NV,USA,Mountain,mountain,Mountain
-NY,USA,Mid_Atlantic,northeast,NewYork
-OH,USA,East_North_Central,corn-belt,MidAtlantic
-OK,USA,West_South_Central,southern-plains,Plains
-OR,USA,Pacific,pacific,Northwest
-PA,USA,Mid_Atlantic,northeast,MidAtlantic
-RI,USA,New_England,northeast,NewEngland
-SC,USA,South_Atlantic,southeast,Southeast
-SD,USA,West_North_Central,northern-plains,Plains
-TN,USA,East_South_Central,appalachia,Southeast
-TX,USA,West_South_Central,southern-plains,Texas
-UT,USA,Mountain,mountain,Mountain
-VA,USA,South_Atlantic,appalachia,MidAtlantic
-VT,USA,New_England,northeast,NewEngland
-WA,USA,Pacific,pacific,Northwest
-WI,USA,East_North_Central,lake-states,Midwest
-WV,USA,South_Atlantic,appalachia,MidAtlantic
-WY,USA,Mountain,mountain,Mountain
+st,country,cendiv,usda_region,h2ptcreg,gasreg
+AL,USA,East_South_Central,southeast,Southeast,East_South_Central
+AR,USA,West_South_Central,delta-states,Delta,West_South_Central
+AZ,USA,Mountain,mountain,Southwest,Southwest
+CA,USA,Pacific,pacific,California,California
+CO,USA,Mountain,mountain,Mountain,Mountain
+CT,USA,New_England,northeast,NewEngland,New_England
+DE,USA,South_Atlantic,northeast,MidAtlantic,South_Atlantic
+FL,USA,South_Atlantic,southeast,Florida,South_Atlantic
+GA,USA,South_Atlantic,southeast,Southeast,South_Atlantic
+IA,USA,West_North_Central,corn-belt,Midwest,West_North_Central
+ID,USA,Mountain,mountain,Northwest,Mountain
+IL,USA,East_North_Central,corn-belt,Midwest,East_North_Central
+IN,USA,East_North_Central,corn-belt,Midwest,East_North_Central
+KS,USA,West_North_Central,northern-plains,Plains,West_North_Central
+KY,USA,East_South_Central,appalachia,MidAtlantic,East_South_Central
+LA,USA,West_South_Central,delta-states,Delta,West_South_Central
+MA,USA,New_England,northeast,NewEngland,New_England
+MD,USA,South_Atlantic,northeast,MidAtlantic,South_Atlantic
+ME,USA,New_England,northeast,NewEngland,New_England
+MI,USA,East_North_Central,lake-states,Midwest,East_North_Central
+MN,USA,West_North_Central,lake-states,Midwest,West_North_Central
+MO,USA,West_North_Central,corn-belt,Midwest,West_North_Central
+MS,USA,East_South_Central,delta-states,Delta,East_South_Central
+MT,USA,Mountain,mountain,Mountain,Mountain
+NC,USA,South_Atlantic,appalachia,Southeast,South_Atlantic
+ND,USA,West_North_Central,northern-plains,Plains,West_North_Central
+NE,USA,West_North_Central,northern-plains,Plains,West_North_Central
+NH,USA,New_England,northeast,NewEngland,New_England
+NJ,USA,Mid_Atlantic,northeast,MidAtlantic,Mid_Atlantic
+NM,USA,Mountain,mountain,Southwest,Southwest
+NV,USA,Mountain,mountain,Mountain,Mountain
+NY,USA,Mid_Atlantic,northeast,NewYork,Mid_Atlantic
+OH,USA,East_North_Central,corn-belt,MidAtlantic,East_North_Central
+OK,USA,West_South_Central,southern-plains,Plains,West_South_Central
+OR,USA,Pacific,pacific,Northwest,Northwest
+PA,USA,Mid_Atlantic,northeast,MidAtlantic,Mid_Atlantic
+RI,USA,New_England,northeast,NewEngland,New_England
+SC,USA,South_Atlantic,southeast,Southeast,South_Atlantic
+SD,USA,West_North_Central,northern-plains,Plains,West_North_Central
+TN,USA,East_South_Central,appalachia,Southeast,East_South_Central
+TX,USA,West_South_Central,southern-plains,Texas,West_South_Central
+UT,USA,Mountain,mountain,Mountain,Mountain
+VA,USA,South_Atlantic,appalachia,MidAtlantic,South_Atlantic
+VT,USA,New_England,northeast,NewEngland,New_England
+WA,USA,Pacific,pacific,Northwest,Northwest
+WI,USA,East_North_Central,lake-states,Midwest,East_North_Central
+WV,USA,South_Atlantic,appalachia,MidAtlantic,South_Atlantic
+WY,USA,Mountain,mountain,Mountain,Mountain
diff --git a/inputs/zones/z132/hierarchy_from134.csv b/inputs/zones/z132/hierarchy_from134.csv
index c1b5a1a7..e33efda8 100644
--- a/inputs/zones/z132/hierarchy_from134.csv
+++ b/inputs/zones/z132/hierarchy_from134.csv
@@ -1,135 +1,135 @@
-ba,nercr,transreg,transgrp,cendiv,st,interconnect,country,usda_region,h2ptcreg,hurdlereg,aggreg
-p1,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,WA,western,USA,pacific,Northwest,Puget_Sound_Energy_Inc,p1
-p2,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,WA,western,USA,pacific,Northwest,Bonneville_Power_Administration,p2
-p3,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,WA,western,USA,pacific,Northwest,Avista_Corp,p3
-p4,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,WA,western,USA,pacific,Northwest,PUD_No2_of_Grant_County,p4
-p5,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,OR,western,USA,pacific,Northwest,Bonneville_Power_Administration,p5
-p6,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,OR,western,USA,pacific,Northwest,PacifiCorp_West,p6
-p7,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,OR,western,USA,pacific,Northwest,Bonneville_Power_Administration,p7
-p8,WECC_NW,NorthernGrid,NorthernGrid_South,Pacific,CA,western,USA,pacific,California,PacifiCorp_West,p8
-p9,WECC_CA,CAISO,CAISO,Pacific,CA,western,USA,pacific,California,CAISO,p9
-p10,WECC_CA,CAISO,CAISO,Pacific,CA,western,USA,pacific,California,CAISO,p10
-p11,WECC_CA,CAISO,CAISO,Pacific,CA,western,USA,pacific,California,CAISO,p11
-p12,WECC_NW,NorthernGrid,NorthernGrid_South,Mountain,NV,western,USA,mountain,Mountain,Nevada_Power_Co,p12
-p13,WECC_NW,NorthernGrid,NorthernGrid_South,Mountain,NV,western,USA,mountain,Mountain,Nevada_Power_Co,p13
-p14,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,ID,western,USA,mountain,Northwest,Avista_Corp,p14
-p15,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,ID,western,USA,mountain,Northwest,Idaho_Power_Co,p15
-p16,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,ID,western,USA,mountain,Northwest,Idaho_Power_Co,p16
-p17,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,MT,western,USA,mountain,Mountain,Northwestern_Energy,p17
-p18,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,MT,western,USA,mountain,Mountain,Northwestern_Energy,p18
-p19,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,MT,western,USA,mountain,Mountain,WAPA_Upper_Great_Plains_West,p19
-p20,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,MT,western,USA,mountain,Mountain,Northwestern_Energy,p20
-p21,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,WY,western,USA,mountain,Mountain,PacifiCorp_East,p21
-p22,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,WY,western,USA,mountain,Mountain,PacifiCorp_East,p22
-p23,WECC_NW,WestConnect,WestConnect_North,Mountain,WY,western,USA,mountain,Mountain,WAPA_Rocky_Mountain_Region,p23
-p24,WECC_NW,WestConnect,WestConnect_North,Mountain,WY,western,USA,mountain,Mountain,WAPA_Rocky_Mountain_Region,p24
-p25,WECC_NW,NorthernGrid,NorthernGrid_South,Mountain,UT,western,USA,mountain,Mountain,PacifiCorp_East,p25
-p26,WECC_NW,NorthernGrid,NorthernGrid_South,Mountain,UT,western,USA,mountain,Mountain,PacifiCorp_East,p26
-p27,WECC_SW,WestConnect,WestConnect_South,Mountain,AZ,western,USA,mountain,Southwest,WAPA_Desert_Southwest_Region,p27
-p28,WECC_SW,WestConnect,WestConnect_South,Mountain,AZ,western,USA,mountain,Southwest,Arizona_Public_Service_Co,z28
-p29,WECC_SW,WestConnect,WestConnect_South,Mountain,AZ,western,USA,mountain,Southwest,Arizona_Public_Service_Co,p29
-p30,WECC_SW,WestConnect,WestConnect_South,Mountain,AZ,western,USA,mountain,Southwest,Arizona_Public_Service_Co,z28
-p31,WECC_SW,WestConnect,WestConnect_South,Mountain,NM,western,USA,mountain,Southwest,Public_Service_Co_of_New_Mexico,p31
-p32,WECC_NW,WestConnect,WestConnect_North,Mountain,SD,western,USA,northern-plains,Plains,WAPA_Rocky_Mountain_Region,p32
-p33,WECC_NW,WestConnect,WestConnect_North,Mountain,CO,western,USA,mountain,Mountain,Public_Service_Co_of_Colorado,p33
-p34,WECC_NW,WestConnect,WestConnect_North,Mountain,CO,western,USA,mountain,Mountain,Public_Service_Co_of_Colorado,p34
-p35,SPP,SPP,SPP_North,West_North_Central,MT,eastern,USA,mountain,Mountain,SPP,p35
-p36,SPP,SPP,SPP_North,West_North_Central,ND,eastern,USA,northern-plains,Plains,SPP,p36
-p37,MISO,MISO,MISO_North,West_North_Central,ND,eastern,USA,northern-plains,Plains,MISO,p37
-p38,SPP,SPP,SPP_North,West_North_Central,SD,eastern,USA,northern-plains,Plains,SPP,p38
-p39,SPP,SPP,SPP_North,West_North_Central,NE,eastern,USA,northern-plains,Plains,SPP,p39
-p40,SPP,SPP,SPP_North,West_North_Central,NE,eastern,USA,northern-plains,Plains,SPP,p40
-p41,SPP,SPP,SPP_North,West_North_Central,NE,eastern,USA,northern-plains,Plains,SPP,p41
-p42,MISO,MISO,MISO_North,West_North_Central,MN,eastern,USA,lake-states,Midwest,MISO,p42
-p43,MISO,MISO,MISO_North,West_North_Central,MN,eastern,USA,lake-states,Midwest,MISO,p43
-p44,MISO,MISO,MISO_North,West_North_Central,MN,eastern,USA,lake-states,Midwest,MISO,p44
-p45,MISO,MISO,MISO_North,West_North_Central,IA,eastern,USA,corn-belt,Midwest,MISO,p45
-p46,MISO,MISO,MISO_North,East_North_Central,WI,eastern,USA,lake-states,Midwest,MISO,p46
-p47,SPP,SPP,SPP_South,West_South_Central,NM,eastern,USA,mountain,Southwest,SPP,p47
-p48,SPP,SPP,SPP_South,West_South_Central,TX,eastern,USA,southern-plains,Texas,SPP,p48
-p49,SPP,SPP,SPP_South,West_South_Central,OK,eastern,USA,southern-plains,Plains,SPP,p49
-p50,SPP,SPP,SPP_South,West_South_Central,OK,eastern,USA,southern-plains,Plains,SPP,p50
-p51,SPP,SPP,SPP_South,West_South_Central,OK,eastern,USA,southern-plains,Plains,SPP,p51
-p52,SPP,SPP,SPP_South,West_North_Central,KS,eastern,USA,northern-plains,Plains,SPP,p52
-p53,SPP,SPP,SPP_South,West_North_Central,KS,eastern,USA,northern-plains,Plains,SPP,p53
-p54,SPP,SPP,SPP_South,West_North_Central,MO,eastern,USA,corn-belt,Midwest,SPP,p54
-p55,SPP,SPP,SPP_South,West_North_Central,MO,eastern,USA,corn-belt,Midwest,SPP,p55
-p56,SPP,SPP,SPP_South,West_South_Central,AR,eastern,USA,delta-states,Delta,SPP,p56
-p57,SPP,SPP,SPP_South,West_South_Central,TX,eastern,USA,southern-plains,Texas,SPP,p57
-p58,MISO,MISO,MISO_South,West_South_Central,LA,eastern,USA,delta-states,Delta,MISO,p58
-p59,WECC_SW,WestConnect,WestConnect_South,Mountain,TX,western,USA,southern-plains,Texas,El_Paso_Electric,p59
-p60,ERCOT,ERCOT,ERCOT,West_South_Central,TX,texas,USA,southern-plains,Texas,ERCOT,p60
-p61,ERCOT,ERCOT,ERCOT,West_South_Central,TX,texas,USA,southern-plains,Texas,ERCOT,p61
-p62,ERCOT,ERCOT,ERCOT,West_South_Central,TX,texas,USA,southern-plains,Texas,ERCOT,p62
-p63,ERCOT,ERCOT,ERCOT,West_South_Central,TX,texas,USA,southern-plains,Texas,ERCOT,p63
-p64,ERCOT,ERCOT,ERCOT,West_South_Central,TX,texas,USA,southern-plains,Texas,ERCOT,p64
-p65,ERCOT,ERCOT,ERCOT,West_South_Central,TX,texas,USA,southern-plains,Texas,ERCOT,p65
-p66,MISO,MISO,MISO_South,West_South_Central,TX,eastern,USA,southern-plains,Texas,MISO,p66
-p67,ERCOT,ERCOT,ERCOT,West_South_Central,TX,texas,USA,southern-plains,Texas,ERCOT,p67
-p68,MISO,MISO,MISO_North,West_North_Central,MN,eastern,USA,lake-states,Midwest,MISO,p68
-p69,MISO,MISO,MISO_North,West_North_Central,IA,eastern,USA,corn-belt,Midwest,MISO,p69
-p70,MISO,MISO,MISO_North,West_North_Central,IA,eastern,USA,corn-belt,Midwest,MISO,p70
-p71,MISO,MISO,MISO_Central,West_North_Central,MO,eastern,USA,corn-belt,Midwest,MISO,p71
-p72,MISO,MISO,MISO_Central,West_North_Central,MO,eastern,USA,corn-belt,Midwest,MISO,p72
-p73,MISO,MISO,MISO_Central,West_North_Central,MO,eastern,USA,corn-belt,Midwest,MISO,p73
-p74,MISO,MISO,MISO_North,East_North_Central,MI,eastern,USA,lake-states,Midwest,MISO,p74
-p75,MISO,MISO,MISO_North,East_North_Central,WI,eastern,USA,lake-states,Midwest,MISO,p75
-p76,MISO,MISO,MISO_North,East_North_Central,WI,eastern,USA,lake-states,Midwest,MISO,p76
-p77,MISO,MISO,MISO_North,East_North_Central,WI,eastern,USA,lake-states,Midwest,MISO,p77
-p78,MISO,MISO,MISO_North,East_North_Central,WI,eastern,USA,lake-states,Midwest,MISO,p78
-p79,MISO,MISO,MISO_North,East_North_Central,WI,eastern,USA,lake-states,Midwest,MISO,p79
-p80,PJM,PJM,PJM_West,East_North_Central,IL,eastern,USA,corn-belt,Midwest,PJM,p80
-p81,MISO,MISO,MISO_Central,East_North_Central,IL,eastern,USA,corn-belt,Midwest,MISO,p81
-p82,MISO,MISO,MISO_Central,East_North_Central,IL,eastern,USA,corn-belt,Midwest,MISO,p82
-p83,MISO,MISO,MISO_Central,East_North_Central,IL,eastern,USA,corn-belt,Midwest,MISO,p83
-p84,MISO,MISO,MISO_Central,West_North_Central,MO,eastern,USA,corn-belt,Midwest,MISO,p84
-p85,MISO,MISO,MISO_South,West_South_Central,AR,eastern,USA,delta-states,Delta,MISO,p85
-p86,MISO,MISO,MISO_South,West_South_Central,LA,eastern,USA,delta-states,Delta,MISO,p86
-p87,MISO,MISO,MISO_South,East_South_Central,MS,eastern,USA,delta-states,Delta,MISO,p87
-p88,SERC_C,SERTP,SERTP,East_South_Central,MS,eastern,USA,delta-states,Delta,Tennessee_Valley_Authority,p88
-p89,SERC_SE,SERTP,SERTP,East_South_Central,AL,eastern,USA,southeast,Southeast,Southern_Co_Services_Inc,p89
-p90,SERC_SE,SERTP,SERTP,East_South_Central,AL,eastern,USA,southeast,Southeast,PowerSouth_Energy_Coop,p90
-p91,SERC_SE,SERTP,SERTP,South_Atlantic,FL,eastern,USA,southeast,Florida,Southern_Co_Services_Inc,p91
-p92,SERC_C,SERTP,SERTP,East_South_Central,TN,eastern,USA,appalachia,Southeast,Tennessee_Valley_Authority,p92
-p93,SERC_C,SERTP,SERTP,East_South_Central,KY,eastern,USA,appalachia,MidAtlantic,Tennessee_Valley_Authority,p93
-p94,SERC_SE,SERTP,SERTP,South_Atlantic,GA,eastern,USA,southeast,Southeast,Southern_Co_Services_Inc,p94
-p95,SERC_E,SERTP,SERTP,South_Atlantic,SC,eastern,USA,southeast,Southeast,Duke_Energy_Carolinas_LLC,p95
-p96,SERC_E,SERTP,SERTP,South_Atlantic,SC,eastern,USA,southeast,Southeast,South_Carolina_Electric_Gas_Co,p96
-p97,SERC_E,SERTP,SERTP,South_Atlantic,NC,eastern,USA,appalachia,Southeast,Duke_Energy_Carolinas_LLC,p97
-p98,SERC_E,SERTP,SERTP,South_Atlantic,NC,eastern,USA,appalachia,Southeast,Duke_Energy_Progress_East,p98
-p99,PJM,PJM,PJM_East,South_Atlantic,VA,eastern,USA,appalachia,MidAtlantic,PJM,p99
-p100,PJM,PJM,PJM_East,South_Atlantic,VA,eastern,USA,appalachia,MidAtlantic,PJM,p100
-p101,SERC_F,FRCC,FRCC,South_Atlantic,FL,eastern,USA,southeast,Florida,Seminole_Electric_Coop_Inc,p101
-p102,SERC_F,FRCC,FRCC,South_Atlantic,FL,eastern,USA,southeast,Florida,Florida_Power_and_Light,p102
-p103,MISO,MISO,MISO_Central,East_North_Central,MI,eastern,USA,lake-states,Midwest,MISO,p103
-p104,PJM,PJM,PJM_West,East_North_Central,MI,eastern,USA,lake-states,Midwest,PJM,p104
-p105,MISO,MISO,MISO_Central,East_North_Central,IN,eastern,USA,corn-belt,Midwest,MISO,p105
-p106,MISO,MISO,MISO_Central,East_North_Central,IN,eastern,USA,corn-belt,Midwest,MISO,p106
-p107,MISO,MISO,MISO_Central,East_North_Central,IN,eastern,USA,corn-belt,Midwest,MISO,p107
-p108,MISO,MISO,MISO_Central,East_South_Central,KY,eastern,USA,appalachia,MidAtlantic,MISO,p108
-p109,PJM,PJM,PJM_East,East_South_Central,KY,eastern,USA,appalachia,MidAtlantic,PJM,p109
-p110,PJM,PJM,PJM_East,East_South_Central,KY,eastern,USA,appalachia,MidAtlantic,PJM,p110
-p111,PJM,PJM,PJM_East,East_North_Central,OH,eastern,USA,corn-belt,MidAtlantic,PJM,p111
-p112,PJM,PJM,PJM_East,East_North_Central,OH,eastern,USA,corn-belt,MidAtlantic,PJM,p112
-p113,PJM,PJM,PJM_East,East_North_Central,OH,eastern,USA,corn-belt,MidAtlantic,PJM,p113
-p114,PJM,PJM,PJM_East,East_North_Central,OH,eastern,USA,corn-belt,MidAtlantic,PJM,p114
-p115,PJM,PJM,PJM_East,Mid_Atlantic,PA,eastern,USA,northeast,MidAtlantic,PJM,p115
-p116,PJM,PJM,PJM_East,South_Atlantic,WV,eastern,USA,appalachia,MidAtlantic,PJM,p116
-p117,PJM,PJM,PJM_East,South_Atlantic,WV,eastern,USA,appalachia,MidAtlantic,PJM,p117
-p118,PJM,PJM,PJM_East,South_Atlantic,VA,eastern,USA,appalachia,MidAtlantic,PJM,p118
-p119,PJM,PJM,PJM_East,Mid_Atlantic,PA,eastern,USA,northeast,MidAtlantic,PJM,z122
-p120,PJM,PJM,PJM_East,Mid_Atlantic,PA,eastern,USA,northeast,MidAtlantic,PJM,p120
-p121,PJM,PJM,PJM_East,South_Atlantic,MD,eastern,USA,northeast,MidAtlantic,PJM,p121
-p122,PJM,PJM,PJM_East,Mid_Atlantic,PA,eastern,USA,northeast,MidAtlantic,PJM,z122
-p123,PJM,PJM,PJM_East,South_Atlantic,MD,eastern,USA,northeast,MidAtlantic,PJM,p123
-p124,PJM,PJM,PJM_East,South_Atlantic,VA,eastern,USA,appalachia,MidAtlantic,PJM,p124
-p125,PJM,PJM,PJM_East,South_Atlantic,DE,eastern,USA,northeast,MidAtlantic,PJM,p125
-p126,PJM,PJM,PJM_East,Mid_Atlantic,NJ,eastern,USA,northeast,MidAtlantic,PJM,p126
-p127,NPCC_NY,NYISO,NYISO,Mid_Atlantic,NY,eastern,USA,northeast,NewYork,NYISO,p127
-p128,NPCC_NY,NYISO,NYISO,Mid_Atlantic,NY,eastern,USA,northeast,NewYork,NYISO,p128
-p129,NPCC_NE,ISONE,ISONE,New_England,VT,eastern,USA,northeast,NewEngland,ISONE,p129
-p130,NPCC_NE,ISONE,ISONE,New_England,NH,eastern,USA,northeast,NewEngland,ISONE,p130
-p131,NPCC_NE,ISONE,ISONE,New_England,MA,eastern,USA,northeast,NewEngland,ISONE,p131
-p132,NPCC_NE,ISONE,ISONE,New_England,CT,eastern,USA,northeast,NewEngland,ISONE,p132
-p133,NPCC_NE,ISONE,ISONE,New_England,RI,eastern,USA,northeast,NewEngland,ISONE,p133
-p134,NPCC_NE,ISONE,ISONE,New_England,ME,eastern,USA,northeast,NewEngland,ISONE,p134
+ba,nercr,transreg,transgrp,cendiv,st,interconnect,country,usda_region,h2ptcreg,hurdlereg,aggreg,gasreg
+p1,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,WA,western,USA,pacific,Northwest,Puget_Sound_Energy_Inc,p1,Northwest
+p2,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,WA,western,USA,pacific,Northwest,Bonneville_Power_Administration,p2,Northwest
+p3,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,WA,western,USA,pacific,Northwest,Avista_Corp,p3,Northwest
+p4,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,WA,western,USA,pacific,Northwest,PUD_No2_of_Grant_County,p4,Northwest
+p5,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,OR,western,USA,pacific,Northwest,Bonneville_Power_Administration,p5,Northwest
+p6,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,OR,western,USA,pacific,Northwest,PacifiCorp_West,p6,Northwest
+p7,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,OR,western,USA,pacific,Northwest,Bonneville_Power_Administration,p7,Northwest
+p8,WECC_NW,NorthernGrid,NorthernGrid_South,Pacific,CA,western,USA,pacific,California,PacifiCorp_West,p8,California
+p9,WECC_CA,CAISO,CAISO,Pacific,CA,western,USA,pacific,California,CAISO,p9,California
+p10,WECC_CA,CAISO,CAISO,Pacific,CA,western,USA,pacific,California,CAISO,p10,California
+p11,WECC_CA,CAISO,CAISO,Pacific,CA,western,USA,pacific,California,CAISO,p11,California
+p12,WECC_NW,NorthernGrid,NorthernGrid_South,Mountain,NV,western,USA,mountain,Mountain,Nevada_Power_Co,p12,Mountain
+p13,WECC_NW,NorthernGrid,NorthernGrid_South,Mountain,NV,western,USA,mountain,Mountain,Nevada_Power_Co,p13,Mountain
+p14,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,ID,western,USA,mountain,Northwest,Avista_Corp,p14,Mountain
+p15,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,ID,western,USA,mountain,Northwest,Idaho_Power_Co,p15,Mountain
+p16,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,ID,western,USA,mountain,Northwest,Idaho_Power_Co,p16,Mountain
+p17,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,MT,western,USA,mountain,Mountain,Northwestern_Energy,p17,Mountain
+p18,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,MT,western,USA,mountain,Mountain,Northwestern_Energy,p18,Mountain
+p19,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,MT,western,USA,mountain,Mountain,WAPA_Upper_Great_Plains_West,p19,Mountain
+p20,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,MT,western,USA,mountain,Mountain,Northwestern_Energy,p20,Mountain
+p21,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,WY,western,USA,mountain,Mountain,PacifiCorp_East,p21,Mountain
+p22,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,WY,western,USA,mountain,Mountain,PacifiCorp_East,p22,Mountain
+p23,WECC_NW,WestConnect,WestConnect_North,Mountain,WY,western,USA,mountain,Mountain,WAPA_Rocky_Mountain_Region,p23,Mountain
+p24,WECC_NW,WestConnect,WestConnect_North,Mountain,WY,western,USA,mountain,Mountain,WAPA_Rocky_Mountain_Region,p24,Mountain
+p25,WECC_NW,NorthernGrid,NorthernGrid_South,Mountain,UT,western,USA,mountain,Mountain,PacifiCorp_East,p25,Mountain
+p26,WECC_NW,NorthernGrid,NorthernGrid_South,Mountain,UT,western,USA,mountain,Mountain,PacifiCorp_East,p26,Mountain
+p27,WECC_SW,WestConnect,WestConnect_South,Mountain,AZ,western,USA,mountain,Southwest,WAPA_Desert_Southwest_Region,p27,Southwest
+p28,WECC_SW,WestConnect,WestConnect_South,Mountain,AZ,western,USA,mountain,Southwest,Arizona_Public_Service_Co,z28,Southwest
+p29,WECC_SW,WestConnect,WestConnect_South,Mountain,AZ,western,USA,mountain,Southwest,Arizona_Public_Service_Co,p29,Southwest
+p30,WECC_SW,WestConnect,WestConnect_South,Mountain,AZ,western,USA,mountain,Southwest,Arizona_Public_Service_Co,z28,Southwest
+p31,WECC_SW,WestConnect,WestConnect_South,Mountain,NM,western,USA,mountain,Southwest,Public_Service_Co_of_New_Mexico,p31,Southwest
+p32,WECC_NW,WestConnect,WestConnect_North,West_North_Central,SD,western,USA,northern-plains,Plains,WAPA_Rocky_Mountain_Region,p32,West_North_Central
+p33,WECC_NW,WestConnect,WestConnect_North,Mountain,CO,western,USA,mountain,Mountain,Public_Service_Co_of_Colorado,p33,Mountain
+p34,WECC_NW,WestConnect,WestConnect_North,Mountain,CO,western,USA,mountain,Mountain,Public_Service_Co_of_Colorado,p34,Mountain
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+p36,SPP,SPP,SPP_North,West_North_Central,ND,eastern,USA,northern-plains,Plains,SPP,p36,West_North_Central
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+p41,SPP,SPP,SPP_North,West_North_Central,NE,eastern,USA,northern-plains,Plains,SPP,p41,West_North_Central
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+p55,SPP,SPP,SPP_South,West_North_Central,MO,eastern,USA,corn-belt,Midwest,SPP,p55,West_North_Central
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+p57,SPP,SPP,SPP_South,West_South_Central,TX,eastern,USA,southern-plains,Texas,SPP,p57,West_South_Central
+p58,MISO,MISO,MISO_South,West_South_Central,LA,eastern,USA,delta-states,Delta,MISO,p58,West_South_Central
+p59,WECC_SW,WestConnect,WestConnect_South,West_South_Central,TX,western,USA,southern-plains,Texas,El_Paso_Electric,p59,West_South_Central
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+p61,ERCOT,ERCOT,ERCOT,West_South_Central,TX,texas,USA,southern-plains,Texas,ERCOT,p61,West_South_Central
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+p65,ERCOT,ERCOT,ERCOT,West_South_Central,TX,texas,USA,southern-plains,Texas,ERCOT,p65,West_South_Central
+p66,MISO,MISO,MISO_South,West_South_Central,TX,eastern,USA,southern-plains,Texas,MISO,p66,West_South_Central
+p67,ERCOT,ERCOT,ERCOT,West_South_Central,TX,texas,USA,southern-plains,Texas,ERCOT,p67,West_South_Central
+p68,MISO,MISO,MISO_North,West_North_Central,MN,eastern,USA,lake-states,Midwest,MISO,p68,West_North_Central
+p69,MISO,MISO,MISO_North,West_North_Central,IA,eastern,USA,corn-belt,Midwest,MISO,p69,West_North_Central
+p70,MISO,MISO,MISO_North,West_North_Central,IA,eastern,USA,corn-belt,Midwest,MISO,p70,West_North_Central
+p71,MISO,MISO,MISO_Central,West_North_Central,MO,eastern,USA,corn-belt,Midwest,MISO,p71,West_North_Central
+p72,MISO,MISO,MISO_Central,West_North_Central,MO,eastern,USA,corn-belt,Midwest,MISO,p72,West_North_Central
+p73,MISO,MISO,MISO_Central,West_North_Central,MO,eastern,USA,corn-belt,Midwest,MISO,p73,West_North_Central
+p74,MISO,MISO,MISO_North,East_North_Central,MI,eastern,USA,lake-states,Midwest,MISO,p74,East_North_Central
+p75,MISO,MISO,MISO_North,East_North_Central,WI,eastern,USA,lake-states,Midwest,MISO,p75,East_North_Central
+p76,MISO,MISO,MISO_North,East_North_Central,WI,eastern,USA,lake-states,Midwest,MISO,p76,East_North_Central
+p77,MISO,MISO,MISO_North,East_North_Central,WI,eastern,USA,lake-states,Midwest,MISO,p77,East_North_Central
+p78,MISO,MISO,MISO_North,East_North_Central,WI,eastern,USA,lake-states,Midwest,MISO,p78,East_North_Central
+p79,MISO,MISO,MISO_North,East_North_Central,WI,eastern,USA,lake-states,Midwest,MISO,p79,East_North_Central
+p80,PJM,PJM,PJM_West,East_North_Central,IL,eastern,USA,corn-belt,Midwest,PJM,p80,East_North_Central
+p81,MISO,MISO,MISO_Central,East_North_Central,IL,eastern,USA,corn-belt,Midwest,MISO,p81,East_North_Central
+p82,MISO,MISO,MISO_Central,East_North_Central,IL,eastern,USA,corn-belt,Midwest,MISO,p82,East_North_Central
+p83,MISO,MISO,MISO_Central,East_North_Central,IL,eastern,USA,corn-belt,Midwest,MISO,p83,East_North_Central
+p84,MISO,MISO,MISO_Central,West_North_Central,MO,eastern,USA,corn-belt,Midwest,MISO,p84,West_North_Central
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+p86,MISO,MISO,MISO_South,West_South_Central,LA,eastern,USA,delta-states,Delta,MISO,p86,West_South_Central
+p87,MISO,MISO,MISO_South,East_South_Central,MS,eastern,USA,delta-states,Delta,MISO,p87,East_South_Central
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+p90,SERC_SE,SERTP,SERTP,East_South_Central,AL,eastern,USA,southeast,Southeast,PowerSouth_Energy_Coop,p90,East_South_Central
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+p92,SERC_C,SERTP,SERTP,East_South_Central,TN,eastern,USA,appalachia,Southeast,Tennessee_Valley_Authority,p92,East_South_Central
+p93,SERC_C,SERTP,SERTP,East_South_Central,KY,eastern,USA,appalachia,MidAtlantic,Tennessee_Valley_Authority,p93,East_South_Central
+p94,SERC_SE,SERTP,SERTP,South_Atlantic,GA,eastern,USA,southeast,Southeast,Southern_Co_Services_Inc,p94,South_Atlantic
+p95,SERC_E,SERTP,SERTP,South_Atlantic,SC,eastern,USA,southeast,Southeast,Duke_Energy_Carolinas_LLC,p95,South_Atlantic
+p96,SERC_E,SERTP,SERTP,South_Atlantic,SC,eastern,USA,southeast,Southeast,South_Carolina_Electric_Gas_Co,p96,South_Atlantic
+p97,SERC_E,SERTP,SERTP,South_Atlantic,NC,eastern,USA,appalachia,Southeast,Duke_Energy_Carolinas_LLC,p97,South_Atlantic
+p98,SERC_E,SERTP,SERTP,South_Atlantic,NC,eastern,USA,appalachia,Southeast,Duke_Energy_Progress_East,p98,South_Atlantic
+p99,PJM,PJM,PJM_East,South_Atlantic,VA,eastern,USA,appalachia,MidAtlantic,PJM,p99,South_Atlantic
+p100,PJM,PJM,PJM_East,South_Atlantic,VA,eastern,USA,appalachia,MidAtlantic,PJM,p100,South_Atlantic
+p101,SERC_F,FRCC,FRCC,South_Atlantic,FL,eastern,USA,southeast,Florida,Seminole_Electric_Coop_Inc,p101,South_Atlantic
+p102,SERC_F,FRCC,FRCC,South_Atlantic,FL,eastern,USA,southeast,Florida,Florida_Power_and_Light,p102,South_Atlantic
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+p115,PJM,PJM,PJM_East,Mid_Atlantic,PA,eastern,USA,northeast,MidAtlantic,PJM,p115,Mid_Atlantic
+p116,PJM,PJM,PJM_East,South_Atlantic,WV,eastern,USA,appalachia,MidAtlantic,PJM,p116,South_Atlantic
+p117,PJM,PJM,PJM_East,South_Atlantic,WV,eastern,USA,appalachia,MidAtlantic,PJM,p117,South_Atlantic
+p118,PJM,PJM,PJM_East,South_Atlantic,VA,eastern,USA,appalachia,MidAtlantic,PJM,p118,South_Atlantic
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+p120,PJM,PJM,PJM_East,Mid_Atlantic,PA,eastern,USA,northeast,MidAtlantic,PJM,p120,Mid_Atlantic
+p121,PJM,PJM,PJM_East,South_Atlantic,MD,eastern,USA,northeast,MidAtlantic,PJM,p121,South_Atlantic
+p122,PJM,PJM,PJM_East,Mid_Atlantic,PA,eastern,USA,northeast,MidAtlantic,PJM,z122,Mid_Atlantic
+p123,PJM,PJM,PJM_East,South_Atlantic,MD,eastern,USA,northeast,MidAtlantic,PJM,p123,South_Atlantic
+p124,PJM,PJM,PJM_East,South_Atlantic,VA,eastern,USA,appalachia,MidAtlantic,PJM,p124,South_Atlantic
+p125,PJM,PJM,PJM_East,South_Atlantic,DE,eastern,USA,northeast,MidAtlantic,PJM,p125,South_Atlantic
+p126,PJM,PJM,PJM_East,Mid_Atlantic,NJ,eastern,USA,northeast,MidAtlantic,PJM,p126,Mid_Atlantic
+p127,NPCC_NY,NYISO,NYISO,Mid_Atlantic,NY,eastern,USA,northeast,NewYork,NYISO,p127,Mid_Atlantic
+p128,NPCC_NY,NYISO,NYISO,Mid_Atlantic,NY,eastern,USA,northeast,NewYork,NYISO,p128,Mid_Atlantic
+p129,NPCC_NE,ISONE,ISONE,New_England,VT,eastern,USA,northeast,NewEngland,ISONE,p129,New_England
+p130,NPCC_NE,ISONE,ISONE,New_England,NH,eastern,USA,northeast,NewEngland,ISONE,p130,New_England
+p131,NPCC_NE,ISONE,ISONE,New_England,MA,eastern,USA,northeast,NewEngland,ISONE,p131,New_England
+p132,NPCC_NE,ISONE,ISONE,New_England,CT,eastern,USA,northeast,NewEngland,ISONE,p132,New_England
+p133,NPCC_NE,ISONE,ISONE,New_England,RI,eastern,USA,northeast,NewEngland,ISONE,p133,New_England
+p134,NPCC_NE,ISONE,ISONE,New_England,ME,eastern,USA,northeast,NewEngland,ISONE,p134,New_England
diff --git a/inputs/zones/z134/hierarchy_from134.csv b/inputs/zones/z134/hierarchy_from134.csv
index c1b5a1a7..e33efda8 100644
--- a/inputs/zones/z134/hierarchy_from134.csv
+++ b/inputs/zones/z134/hierarchy_from134.csv
@@ -1,135 +1,135 @@
-ba,nercr,transreg,transgrp,cendiv,st,interconnect,country,usda_region,h2ptcreg,hurdlereg,aggreg
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-p2,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,WA,western,USA,pacific,Northwest,Bonneville_Power_Administration,p2
-p3,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,WA,western,USA,pacific,Northwest,Avista_Corp,p3
-p4,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,WA,western,USA,pacific,Northwest,PUD_No2_of_Grant_County,p4
-p5,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,OR,western,USA,pacific,Northwest,Bonneville_Power_Administration,p5
-p6,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,OR,western,USA,pacific,Northwest,PacifiCorp_West,p6
-p7,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,OR,western,USA,pacific,Northwest,Bonneville_Power_Administration,p7
-p8,WECC_NW,NorthernGrid,NorthernGrid_South,Pacific,CA,western,USA,pacific,California,PacifiCorp_West,p8
-p9,WECC_CA,CAISO,CAISO,Pacific,CA,western,USA,pacific,California,CAISO,p9
-p10,WECC_CA,CAISO,CAISO,Pacific,CA,western,USA,pacific,California,CAISO,p10
-p11,WECC_CA,CAISO,CAISO,Pacific,CA,western,USA,pacific,California,CAISO,p11
-p12,WECC_NW,NorthernGrid,NorthernGrid_South,Mountain,NV,western,USA,mountain,Mountain,Nevada_Power_Co,p12
-p13,WECC_NW,NorthernGrid,NorthernGrid_South,Mountain,NV,western,USA,mountain,Mountain,Nevada_Power_Co,p13
-p14,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,ID,western,USA,mountain,Northwest,Avista_Corp,p14
-p15,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,ID,western,USA,mountain,Northwest,Idaho_Power_Co,p15
-p16,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,ID,western,USA,mountain,Northwest,Idaho_Power_Co,p16
-p17,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,MT,western,USA,mountain,Mountain,Northwestern_Energy,p17
-p18,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,MT,western,USA,mountain,Mountain,Northwestern_Energy,p18
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-p21,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,WY,western,USA,mountain,Mountain,PacifiCorp_East,p21
-p22,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,WY,western,USA,mountain,Mountain,PacifiCorp_East,p22
-p23,WECC_NW,WestConnect,WestConnect_North,Mountain,WY,western,USA,mountain,Mountain,WAPA_Rocky_Mountain_Region,p23
-p24,WECC_NW,WestConnect,WestConnect_North,Mountain,WY,western,USA,mountain,Mountain,WAPA_Rocky_Mountain_Region,p24
-p25,WECC_NW,NorthernGrid,NorthernGrid_South,Mountain,UT,western,USA,mountain,Mountain,PacifiCorp_East,p25
-p26,WECC_NW,NorthernGrid,NorthernGrid_South,Mountain,UT,western,USA,mountain,Mountain,PacifiCorp_East,p26
-p27,WECC_SW,WestConnect,WestConnect_South,Mountain,AZ,western,USA,mountain,Southwest,WAPA_Desert_Southwest_Region,p27
-p28,WECC_SW,WestConnect,WestConnect_South,Mountain,AZ,western,USA,mountain,Southwest,Arizona_Public_Service_Co,z28
-p29,WECC_SW,WestConnect,WestConnect_South,Mountain,AZ,western,USA,mountain,Southwest,Arizona_Public_Service_Co,p29
-p30,WECC_SW,WestConnect,WestConnect_South,Mountain,AZ,western,USA,mountain,Southwest,Arizona_Public_Service_Co,z28
-p31,WECC_SW,WestConnect,WestConnect_South,Mountain,NM,western,USA,mountain,Southwest,Public_Service_Co_of_New_Mexico,p31
-p32,WECC_NW,WestConnect,WestConnect_North,Mountain,SD,western,USA,northern-plains,Plains,WAPA_Rocky_Mountain_Region,p32
-p33,WECC_NW,WestConnect,WestConnect_North,Mountain,CO,western,USA,mountain,Mountain,Public_Service_Co_of_Colorado,p33
-p34,WECC_NW,WestConnect,WestConnect_North,Mountain,CO,western,USA,mountain,Mountain,Public_Service_Co_of_Colorado,p34
-p35,SPP,SPP,SPP_North,West_North_Central,MT,eastern,USA,mountain,Mountain,SPP,p35
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-p37,MISO,MISO,MISO_North,West_North_Central,ND,eastern,USA,northern-plains,Plains,MISO,p37
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-p41,SPP,SPP,SPP_North,West_North_Central,NE,eastern,USA,northern-plains,Plains,SPP,p41
-p42,MISO,MISO,MISO_North,West_North_Central,MN,eastern,USA,lake-states,Midwest,MISO,p42
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-p47,SPP,SPP,SPP_South,West_South_Central,NM,eastern,USA,mountain,Southwest,SPP,p47
-p48,SPP,SPP,SPP_South,West_South_Central,TX,eastern,USA,southern-plains,Texas,SPP,p48
-p49,SPP,SPP,SPP_South,West_South_Central,OK,eastern,USA,southern-plains,Plains,SPP,p49
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-p59,WECC_SW,WestConnect,WestConnect_South,Mountain,TX,western,USA,southern-plains,Texas,El_Paso_Electric,p59
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-p66,MISO,MISO,MISO_South,West_South_Central,TX,eastern,USA,southern-plains,Texas,MISO,p66
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-p68,MISO,MISO,MISO_North,West_North_Central,MN,eastern,USA,lake-states,Midwest,MISO,p68
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+p110,PJM,PJM,PJM_East,East_South_Central,KY,eastern,USA,appalachia,MidAtlantic,PJM,p110,East_South_Central
+p111,PJM,PJM,PJM_East,East_North_Central,OH,eastern,USA,corn-belt,MidAtlantic,PJM,p111,East_North_Central
+p112,PJM,PJM,PJM_East,East_North_Central,OH,eastern,USA,corn-belt,MidAtlantic,PJM,p112,East_North_Central
+p113,PJM,PJM,PJM_East,East_North_Central,OH,eastern,USA,corn-belt,MidAtlantic,PJM,p113,East_North_Central
+p114,PJM,PJM,PJM_East,East_North_Central,OH,eastern,USA,corn-belt,MidAtlantic,PJM,p114,East_North_Central
+p115,PJM,PJM,PJM_East,Mid_Atlantic,PA,eastern,USA,northeast,MidAtlantic,PJM,p115,Mid_Atlantic
+p116,PJM,PJM,PJM_East,South_Atlantic,WV,eastern,USA,appalachia,MidAtlantic,PJM,p116,South_Atlantic
+p117,PJM,PJM,PJM_East,South_Atlantic,WV,eastern,USA,appalachia,MidAtlantic,PJM,p117,South_Atlantic
+p118,PJM,PJM,PJM_East,South_Atlantic,VA,eastern,USA,appalachia,MidAtlantic,PJM,p118,South_Atlantic
+p119,PJM,PJM,PJM_East,Mid_Atlantic,PA,eastern,USA,northeast,MidAtlantic,PJM,z122,Mid_Atlantic
+p120,PJM,PJM,PJM_East,Mid_Atlantic,PA,eastern,USA,northeast,MidAtlantic,PJM,p120,Mid_Atlantic
+p121,PJM,PJM,PJM_East,South_Atlantic,MD,eastern,USA,northeast,MidAtlantic,PJM,p121,South_Atlantic
+p122,PJM,PJM,PJM_East,Mid_Atlantic,PA,eastern,USA,northeast,MidAtlantic,PJM,z122,Mid_Atlantic
+p123,PJM,PJM,PJM_East,South_Atlantic,MD,eastern,USA,northeast,MidAtlantic,PJM,p123,South_Atlantic
+p124,PJM,PJM,PJM_East,South_Atlantic,VA,eastern,USA,appalachia,MidAtlantic,PJM,p124,South_Atlantic
+p125,PJM,PJM,PJM_East,South_Atlantic,DE,eastern,USA,northeast,MidAtlantic,PJM,p125,South_Atlantic
+p126,PJM,PJM,PJM_East,Mid_Atlantic,NJ,eastern,USA,northeast,MidAtlantic,PJM,p126,Mid_Atlantic
+p127,NPCC_NY,NYISO,NYISO,Mid_Atlantic,NY,eastern,USA,northeast,NewYork,NYISO,p127,Mid_Atlantic
+p128,NPCC_NY,NYISO,NYISO,Mid_Atlantic,NY,eastern,USA,northeast,NewYork,NYISO,p128,Mid_Atlantic
+p129,NPCC_NE,ISONE,ISONE,New_England,VT,eastern,USA,northeast,NewEngland,ISONE,p129,New_England
+p130,NPCC_NE,ISONE,ISONE,New_England,NH,eastern,USA,northeast,NewEngland,ISONE,p130,New_England
+p131,NPCC_NE,ISONE,ISONE,New_England,MA,eastern,USA,northeast,NewEngland,ISONE,p131,New_England
+p132,NPCC_NE,ISONE,ISONE,New_England,CT,eastern,USA,northeast,NewEngland,ISONE,p132,New_England
+p133,NPCC_NE,ISONE,ISONE,New_England,RI,eastern,USA,northeast,NewEngland,ISONE,p133,New_England
+p134,NPCC_NE,ISONE,ISONE,New_England,ME,eastern,USA,northeast,NewEngland,ISONE,p134,New_England
diff --git a/inputs/zones/z3109/hierarchy_from134.csv b/inputs/zones/z3109/hierarchy_from134.csv
index c1b5a1a7..e33efda8 100644
--- a/inputs/zones/z3109/hierarchy_from134.csv
+++ b/inputs/zones/z3109/hierarchy_from134.csv
@@ -1,135 +1,135 @@
-ba,nercr,transreg,transgrp,cendiv,st,interconnect,country,usda_region,h2ptcreg,hurdlereg,aggreg
-p1,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,WA,western,USA,pacific,Northwest,Puget_Sound_Energy_Inc,p1
-p2,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,WA,western,USA,pacific,Northwest,Bonneville_Power_Administration,p2
-p3,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,WA,western,USA,pacific,Northwest,Avista_Corp,p3
-p4,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,WA,western,USA,pacific,Northwest,PUD_No2_of_Grant_County,p4
-p5,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,OR,western,USA,pacific,Northwest,Bonneville_Power_Administration,p5
-p6,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,OR,western,USA,pacific,Northwest,PacifiCorp_West,p6
-p7,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,OR,western,USA,pacific,Northwest,Bonneville_Power_Administration,p7
-p8,WECC_NW,NorthernGrid,NorthernGrid_South,Pacific,CA,western,USA,pacific,California,PacifiCorp_West,p8
-p9,WECC_CA,CAISO,CAISO,Pacific,CA,western,USA,pacific,California,CAISO,p9
-p10,WECC_CA,CAISO,CAISO,Pacific,CA,western,USA,pacific,California,CAISO,p10
-p11,WECC_CA,CAISO,CAISO,Pacific,CA,western,USA,pacific,California,CAISO,p11
-p12,WECC_NW,NorthernGrid,NorthernGrid_South,Mountain,NV,western,USA,mountain,Mountain,Nevada_Power_Co,p12
-p13,WECC_NW,NorthernGrid,NorthernGrid_South,Mountain,NV,western,USA,mountain,Mountain,Nevada_Power_Co,p13
-p14,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,ID,western,USA,mountain,Northwest,Avista_Corp,p14
-p15,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,ID,western,USA,mountain,Northwest,Idaho_Power_Co,p15
-p16,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,ID,western,USA,mountain,Northwest,Idaho_Power_Co,p16
-p17,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,MT,western,USA,mountain,Mountain,Northwestern_Energy,p17
-p18,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,MT,western,USA,mountain,Mountain,Northwestern_Energy,p18
-p19,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,MT,western,USA,mountain,Mountain,WAPA_Upper_Great_Plains_West,p19
-p20,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,MT,western,USA,mountain,Mountain,Northwestern_Energy,p20
-p21,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,WY,western,USA,mountain,Mountain,PacifiCorp_East,p21
-p22,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,WY,western,USA,mountain,Mountain,PacifiCorp_East,p22
-p23,WECC_NW,WestConnect,WestConnect_North,Mountain,WY,western,USA,mountain,Mountain,WAPA_Rocky_Mountain_Region,p23
-p24,WECC_NW,WestConnect,WestConnect_North,Mountain,WY,western,USA,mountain,Mountain,WAPA_Rocky_Mountain_Region,p24
-p25,WECC_NW,NorthernGrid,NorthernGrid_South,Mountain,UT,western,USA,mountain,Mountain,PacifiCorp_East,p25
-p26,WECC_NW,NorthernGrid,NorthernGrid_South,Mountain,UT,western,USA,mountain,Mountain,PacifiCorp_East,p26
-p27,WECC_SW,WestConnect,WestConnect_South,Mountain,AZ,western,USA,mountain,Southwest,WAPA_Desert_Southwest_Region,p27
-p28,WECC_SW,WestConnect,WestConnect_South,Mountain,AZ,western,USA,mountain,Southwest,Arizona_Public_Service_Co,z28
-p29,WECC_SW,WestConnect,WestConnect_South,Mountain,AZ,western,USA,mountain,Southwest,Arizona_Public_Service_Co,p29
-p30,WECC_SW,WestConnect,WestConnect_South,Mountain,AZ,western,USA,mountain,Southwest,Arizona_Public_Service_Co,z28
-p31,WECC_SW,WestConnect,WestConnect_South,Mountain,NM,western,USA,mountain,Southwest,Public_Service_Co_of_New_Mexico,p31
-p32,WECC_NW,WestConnect,WestConnect_North,Mountain,SD,western,USA,northern-plains,Plains,WAPA_Rocky_Mountain_Region,p32
-p33,WECC_NW,WestConnect,WestConnect_North,Mountain,CO,western,USA,mountain,Mountain,Public_Service_Co_of_Colorado,p33
-p34,WECC_NW,WestConnect,WestConnect_North,Mountain,CO,western,USA,mountain,Mountain,Public_Service_Co_of_Colorado,p34
-p35,SPP,SPP,SPP_North,West_North_Central,MT,eastern,USA,mountain,Mountain,SPP,p35
-p36,SPP,SPP,SPP_North,West_North_Central,ND,eastern,USA,northern-plains,Plains,SPP,p36
-p37,MISO,MISO,MISO_North,West_North_Central,ND,eastern,USA,northern-plains,Plains,MISO,p37
-p38,SPP,SPP,SPP_North,West_North_Central,SD,eastern,USA,northern-plains,Plains,SPP,p38
-p39,SPP,SPP,SPP_North,West_North_Central,NE,eastern,USA,northern-plains,Plains,SPP,p39
-p40,SPP,SPP,SPP_North,West_North_Central,NE,eastern,USA,northern-plains,Plains,SPP,p40
-p41,SPP,SPP,SPP_North,West_North_Central,NE,eastern,USA,northern-plains,Plains,SPP,p41
-p42,MISO,MISO,MISO_North,West_North_Central,MN,eastern,USA,lake-states,Midwest,MISO,p42
-p43,MISO,MISO,MISO_North,West_North_Central,MN,eastern,USA,lake-states,Midwest,MISO,p43
-p44,MISO,MISO,MISO_North,West_North_Central,MN,eastern,USA,lake-states,Midwest,MISO,p44
-p45,MISO,MISO,MISO_North,West_North_Central,IA,eastern,USA,corn-belt,Midwest,MISO,p45
-p46,MISO,MISO,MISO_North,East_North_Central,WI,eastern,USA,lake-states,Midwest,MISO,p46
-p47,SPP,SPP,SPP_South,West_South_Central,NM,eastern,USA,mountain,Southwest,SPP,p47
-p48,SPP,SPP,SPP_South,West_South_Central,TX,eastern,USA,southern-plains,Texas,SPP,p48
-p49,SPP,SPP,SPP_South,West_South_Central,OK,eastern,USA,southern-plains,Plains,SPP,p49
-p50,SPP,SPP,SPP_South,West_South_Central,OK,eastern,USA,southern-plains,Plains,SPP,p50
-p51,SPP,SPP,SPP_South,West_South_Central,OK,eastern,USA,southern-plains,Plains,SPP,p51
-p52,SPP,SPP,SPP_South,West_North_Central,KS,eastern,USA,northern-plains,Plains,SPP,p52
-p53,SPP,SPP,SPP_South,West_North_Central,KS,eastern,USA,northern-plains,Plains,SPP,p53
-p54,SPP,SPP,SPP_South,West_North_Central,MO,eastern,USA,corn-belt,Midwest,SPP,p54
-p55,SPP,SPP,SPP_South,West_North_Central,MO,eastern,USA,corn-belt,Midwest,SPP,p55
-p56,SPP,SPP,SPP_South,West_South_Central,AR,eastern,USA,delta-states,Delta,SPP,p56
-p57,SPP,SPP,SPP_South,West_South_Central,TX,eastern,USA,southern-plains,Texas,SPP,p57
-p58,MISO,MISO,MISO_South,West_South_Central,LA,eastern,USA,delta-states,Delta,MISO,p58
-p59,WECC_SW,WestConnect,WestConnect_South,Mountain,TX,western,USA,southern-plains,Texas,El_Paso_Electric,p59
-p60,ERCOT,ERCOT,ERCOT,West_South_Central,TX,texas,USA,southern-plains,Texas,ERCOT,p60
-p61,ERCOT,ERCOT,ERCOT,West_South_Central,TX,texas,USA,southern-plains,Texas,ERCOT,p61
-p62,ERCOT,ERCOT,ERCOT,West_South_Central,TX,texas,USA,southern-plains,Texas,ERCOT,p62
-p63,ERCOT,ERCOT,ERCOT,West_South_Central,TX,texas,USA,southern-plains,Texas,ERCOT,p63
-p64,ERCOT,ERCOT,ERCOT,West_South_Central,TX,texas,USA,southern-plains,Texas,ERCOT,p64
-p65,ERCOT,ERCOT,ERCOT,West_South_Central,TX,texas,USA,southern-plains,Texas,ERCOT,p65
-p66,MISO,MISO,MISO_South,West_South_Central,TX,eastern,USA,southern-plains,Texas,MISO,p66
-p67,ERCOT,ERCOT,ERCOT,West_South_Central,TX,texas,USA,southern-plains,Texas,ERCOT,p67
-p68,MISO,MISO,MISO_North,West_North_Central,MN,eastern,USA,lake-states,Midwest,MISO,p68
-p69,MISO,MISO,MISO_North,West_North_Central,IA,eastern,USA,corn-belt,Midwest,MISO,p69
-p70,MISO,MISO,MISO_North,West_North_Central,IA,eastern,USA,corn-belt,Midwest,MISO,p70
-p71,MISO,MISO,MISO_Central,West_North_Central,MO,eastern,USA,corn-belt,Midwest,MISO,p71
-p72,MISO,MISO,MISO_Central,West_North_Central,MO,eastern,USA,corn-belt,Midwest,MISO,p72
-p73,MISO,MISO,MISO_Central,West_North_Central,MO,eastern,USA,corn-belt,Midwest,MISO,p73
-p74,MISO,MISO,MISO_North,East_North_Central,MI,eastern,USA,lake-states,Midwest,MISO,p74
-p75,MISO,MISO,MISO_North,East_North_Central,WI,eastern,USA,lake-states,Midwest,MISO,p75
-p76,MISO,MISO,MISO_North,East_North_Central,WI,eastern,USA,lake-states,Midwest,MISO,p76
-p77,MISO,MISO,MISO_North,East_North_Central,WI,eastern,USA,lake-states,Midwest,MISO,p77
-p78,MISO,MISO,MISO_North,East_North_Central,WI,eastern,USA,lake-states,Midwest,MISO,p78
-p79,MISO,MISO,MISO_North,East_North_Central,WI,eastern,USA,lake-states,Midwest,MISO,p79
-p80,PJM,PJM,PJM_West,East_North_Central,IL,eastern,USA,corn-belt,Midwest,PJM,p80
-p81,MISO,MISO,MISO_Central,East_North_Central,IL,eastern,USA,corn-belt,Midwest,MISO,p81
-p82,MISO,MISO,MISO_Central,East_North_Central,IL,eastern,USA,corn-belt,Midwest,MISO,p82
-p83,MISO,MISO,MISO_Central,East_North_Central,IL,eastern,USA,corn-belt,Midwest,MISO,p83
-p84,MISO,MISO,MISO_Central,West_North_Central,MO,eastern,USA,corn-belt,Midwest,MISO,p84
-p85,MISO,MISO,MISO_South,West_South_Central,AR,eastern,USA,delta-states,Delta,MISO,p85
-p86,MISO,MISO,MISO_South,West_South_Central,LA,eastern,USA,delta-states,Delta,MISO,p86
-p87,MISO,MISO,MISO_South,East_South_Central,MS,eastern,USA,delta-states,Delta,MISO,p87
-p88,SERC_C,SERTP,SERTP,East_South_Central,MS,eastern,USA,delta-states,Delta,Tennessee_Valley_Authority,p88
-p89,SERC_SE,SERTP,SERTP,East_South_Central,AL,eastern,USA,southeast,Southeast,Southern_Co_Services_Inc,p89
-p90,SERC_SE,SERTP,SERTP,East_South_Central,AL,eastern,USA,southeast,Southeast,PowerSouth_Energy_Coop,p90
-p91,SERC_SE,SERTP,SERTP,South_Atlantic,FL,eastern,USA,southeast,Florida,Southern_Co_Services_Inc,p91
-p92,SERC_C,SERTP,SERTP,East_South_Central,TN,eastern,USA,appalachia,Southeast,Tennessee_Valley_Authority,p92
-p93,SERC_C,SERTP,SERTP,East_South_Central,KY,eastern,USA,appalachia,MidAtlantic,Tennessee_Valley_Authority,p93
-p94,SERC_SE,SERTP,SERTP,South_Atlantic,GA,eastern,USA,southeast,Southeast,Southern_Co_Services_Inc,p94
-p95,SERC_E,SERTP,SERTP,South_Atlantic,SC,eastern,USA,southeast,Southeast,Duke_Energy_Carolinas_LLC,p95
-p96,SERC_E,SERTP,SERTP,South_Atlantic,SC,eastern,USA,southeast,Southeast,South_Carolina_Electric_Gas_Co,p96
-p97,SERC_E,SERTP,SERTP,South_Atlantic,NC,eastern,USA,appalachia,Southeast,Duke_Energy_Carolinas_LLC,p97
-p98,SERC_E,SERTP,SERTP,South_Atlantic,NC,eastern,USA,appalachia,Southeast,Duke_Energy_Progress_East,p98
-p99,PJM,PJM,PJM_East,South_Atlantic,VA,eastern,USA,appalachia,MidAtlantic,PJM,p99
-p100,PJM,PJM,PJM_East,South_Atlantic,VA,eastern,USA,appalachia,MidAtlantic,PJM,p100
-p101,SERC_F,FRCC,FRCC,South_Atlantic,FL,eastern,USA,southeast,Florida,Seminole_Electric_Coop_Inc,p101
-p102,SERC_F,FRCC,FRCC,South_Atlantic,FL,eastern,USA,southeast,Florida,Florida_Power_and_Light,p102
-p103,MISO,MISO,MISO_Central,East_North_Central,MI,eastern,USA,lake-states,Midwest,MISO,p103
-p104,PJM,PJM,PJM_West,East_North_Central,MI,eastern,USA,lake-states,Midwest,PJM,p104
-p105,MISO,MISO,MISO_Central,East_North_Central,IN,eastern,USA,corn-belt,Midwest,MISO,p105
-p106,MISO,MISO,MISO_Central,East_North_Central,IN,eastern,USA,corn-belt,Midwest,MISO,p106
-p107,MISO,MISO,MISO_Central,East_North_Central,IN,eastern,USA,corn-belt,Midwest,MISO,p107
-p108,MISO,MISO,MISO_Central,East_South_Central,KY,eastern,USA,appalachia,MidAtlantic,MISO,p108
-p109,PJM,PJM,PJM_East,East_South_Central,KY,eastern,USA,appalachia,MidAtlantic,PJM,p109
-p110,PJM,PJM,PJM_East,East_South_Central,KY,eastern,USA,appalachia,MidAtlantic,PJM,p110
-p111,PJM,PJM,PJM_East,East_North_Central,OH,eastern,USA,corn-belt,MidAtlantic,PJM,p111
-p112,PJM,PJM,PJM_East,East_North_Central,OH,eastern,USA,corn-belt,MidAtlantic,PJM,p112
-p113,PJM,PJM,PJM_East,East_North_Central,OH,eastern,USA,corn-belt,MidAtlantic,PJM,p113
-p114,PJM,PJM,PJM_East,East_North_Central,OH,eastern,USA,corn-belt,MidAtlantic,PJM,p114
-p115,PJM,PJM,PJM_East,Mid_Atlantic,PA,eastern,USA,northeast,MidAtlantic,PJM,p115
-p116,PJM,PJM,PJM_East,South_Atlantic,WV,eastern,USA,appalachia,MidAtlantic,PJM,p116
-p117,PJM,PJM,PJM_East,South_Atlantic,WV,eastern,USA,appalachia,MidAtlantic,PJM,p117
-p118,PJM,PJM,PJM_East,South_Atlantic,VA,eastern,USA,appalachia,MidAtlantic,PJM,p118
-p119,PJM,PJM,PJM_East,Mid_Atlantic,PA,eastern,USA,northeast,MidAtlantic,PJM,z122
-p120,PJM,PJM,PJM_East,Mid_Atlantic,PA,eastern,USA,northeast,MidAtlantic,PJM,p120
-p121,PJM,PJM,PJM_East,South_Atlantic,MD,eastern,USA,northeast,MidAtlantic,PJM,p121
-p122,PJM,PJM,PJM_East,Mid_Atlantic,PA,eastern,USA,northeast,MidAtlantic,PJM,z122
-p123,PJM,PJM,PJM_East,South_Atlantic,MD,eastern,USA,northeast,MidAtlantic,PJM,p123
-p124,PJM,PJM,PJM_East,South_Atlantic,VA,eastern,USA,appalachia,MidAtlantic,PJM,p124
-p125,PJM,PJM,PJM_East,South_Atlantic,DE,eastern,USA,northeast,MidAtlantic,PJM,p125
-p126,PJM,PJM,PJM_East,Mid_Atlantic,NJ,eastern,USA,northeast,MidAtlantic,PJM,p126
-p127,NPCC_NY,NYISO,NYISO,Mid_Atlantic,NY,eastern,USA,northeast,NewYork,NYISO,p127
-p128,NPCC_NY,NYISO,NYISO,Mid_Atlantic,NY,eastern,USA,northeast,NewYork,NYISO,p128
-p129,NPCC_NE,ISONE,ISONE,New_England,VT,eastern,USA,northeast,NewEngland,ISONE,p129
-p130,NPCC_NE,ISONE,ISONE,New_England,NH,eastern,USA,northeast,NewEngland,ISONE,p130
-p131,NPCC_NE,ISONE,ISONE,New_England,MA,eastern,USA,northeast,NewEngland,ISONE,p131
-p132,NPCC_NE,ISONE,ISONE,New_England,CT,eastern,USA,northeast,NewEngland,ISONE,p132
-p133,NPCC_NE,ISONE,ISONE,New_England,RI,eastern,USA,northeast,NewEngland,ISONE,p133
-p134,NPCC_NE,ISONE,ISONE,New_England,ME,eastern,USA,northeast,NewEngland,ISONE,p134
+ba,nercr,transreg,transgrp,cendiv,st,interconnect,country,usda_region,h2ptcreg,hurdlereg,aggreg,gasreg
+p1,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,WA,western,USA,pacific,Northwest,Puget_Sound_Energy_Inc,p1,Northwest
+p2,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,WA,western,USA,pacific,Northwest,Bonneville_Power_Administration,p2,Northwest
+p3,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,WA,western,USA,pacific,Northwest,Avista_Corp,p3,Northwest
+p4,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,WA,western,USA,pacific,Northwest,PUD_No2_of_Grant_County,p4,Northwest
+p5,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,OR,western,USA,pacific,Northwest,Bonneville_Power_Administration,p5,Northwest
+p6,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,OR,western,USA,pacific,Northwest,PacifiCorp_West,p6,Northwest
+p7,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,OR,western,USA,pacific,Northwest,Bonneville_Power_Administration,p7,Northwest
+p8,WECC_NW,NorthernGrid,NorthernGrid_South,Pacific,CA,western,USA,pacific,California,PacifiCorp_West,p8,California
+p9,WECC_CA,CAISO,CAISO,Pacific,CA,western,USA,pacific,California,CAISO,p9,California
+p10,WECC_CA,CAISO,CAISO,Pacific,CA,western,USA,pacific,California,CAISO,p10,California
+p11,WECC_CA,CAISO,CAISO,Pacific,CA,western,USA,pacific,California,CAISO,p11,California
+p12,WECC_NW,NorthernGrid,NorthernGrid_South,Mountain,NV,western,USA,mountain,Mountain,Nevada_Power_Co,p12,Mountain
+p13,WECC_NW,NorthernGrid,NorthernGrid_South,Mountain,NV,western,USA,mountain,Mountain,Nevada_Power_Co,p13,Mountain
+p14,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,ID,western,USA,mountain,Northwest,Avista_Corp,p14,Mountain
+p15,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,ID,western,USA,mountain,Northwest,Idaho_Power_Co,p15,Mountain
+p16,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,ID,western,USA,mountain,Northwest,Idaho_Power_Co,p16,Mountain
+p17,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,MT,western,USA,mountain,Mountain,Northwestern_Energy,p17,Mountain
+p18,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,MT,western,USA,mountain,Mountain,Northwestern_Energy,p18,Mountain
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+p20,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,MT,western,USA,mountain,Mountain,Northwestern_Energy,p20,Mountain
+p21,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,WY,western,USA,mountain,Mountain,PacifiCorp_East,p21,Mountain
+p22,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,WY,western,USA,mountain,Mountain,PacifiCorp_East,p22,Mountain
+p23,WECC_NW,WestConnect,WestConnect_North,Mountain,WY,western,USA,mountain,Mountain,WAPA_Rocky_Mountain_Region,p23,Mountain
+p24,WECC_NW,WestConnect,WestConnect_North,Mountain,WY,western,USA,mountain,Mountain,WAPA_Rocky_Mountain_Region,p24,Mountain
+p25,WECC_NW,NorthernGrid,NorthernGrid_South,Mountain,UT,western,USA,mountain,Mountain,PacifiCorp_East,p25,Mountain
+p26,WECC_NW,NorthernGrid,NorthernGrid_South,Mountain,UT,western,USA,mountain,Mountain,PacifiCorp_East,p26,Mountain
+p27,WECC_SW,WestConnect,WestConnect_South,Mountain,AZ,western,USA,mountain,Southwest,WAPA_Desert_Southwest_Region,p27,Southwest
+p28,WECC_SW,WestConnect,WestConnect_South,Mountain,AZ,western,USA,mountain,Southwest,Arizona_Public_Service_Co,z28,Southwest
+p29,WECC_SW,WestConnect,WestConnect_South,Mountain,AZ,western,USA,mountain,Southwest,Arizona_Public_Service_Co,p29,Southwest
+p30,WECC_SW,WestConnect,WestConnect_South,Mountain,AZ,western,USA,mountain,Southwest,Arizona_Public_Service_Co,z28,Southwest
+p31,WECC_SW,WestConnect,WestConnect_South,Mountain,NM,western,USA,mountain,Southwest,Public_Service_Co_of_New_Mexico,p31,Southwest
+p32,WECC_NW,WestConnect,WestConnect_North,West_North_Central,SD,western,USA,northern-plains,Plains,WAPA_Rocky_Mountain_Region,p32,West_North_Central
+p33,WECC_NW,WestConnect,WestConnect_North,Mountain,CO,western,USA,mountain,Mountain,Public_Service_Co_of_Colorado,p33,Mountain
+p34,WECC_NW,WestConnect,WestConnect_North,Mountain,CO,western,USA,mountain,Mountain,Public_Service_Co_of_Colorado,p34,Mountain
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+p53,SPP,SPP,SPP_South,West_North_Central,KS,eastern,USA,northern-plains,Plains,SPP,p53,West_North_Central
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+p55,SPP,SPP,SPP_South,West_North_Central,MO,eastern,USA,corn-belt,Midwest,SPP,p55,West_North_Central
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+p57,SPP,SPP,SPP_South,West_South_Central,TX,eastern,USA,southern-plains,Texas,SPP,p57,West_South_Central
+p58,MISO,MISO,MISO_South,West_South_Central,LA,eastern,USA,delta-states,Delta,MISO,p58,West_South_Central
+p59,WECC_SW,WestConnect,WestConnect_South,West_South_Central,TX,western,USA,southern-plains,Texas,El_Paso_Electric,p59,West_South_Central
+p60,ERCOT,ERCOT,ERCOT,West_South_Central,TX,texas,USA,southern-plains,Texas,ERCOT,p60,West_South_Central
+p61,ERCOT,ERCOT,ERCOT,West_South_Central,TX,texas,USA,southern-plains,Texas,ERCOT,p61,West_South_Central
+p62,ERCOT,ERCOT,ERCOT,West_South_Central,TX,texas,USA,southern-plains,Texas,ERCOT,p62,West_South_Central
+p63,ERCOT,ERCOT,ERCOT,West_South_Central,TX,texas,USA,southern-plains,Texas,ERCOT,p63,West_South_Central
+p64,ERCOT,ERCOT,ERCOT,West_South_Central,TX,texas,USA,southern-plains,Texas,ERCOT,p64,West_South_Central
+p65,ERCOT,ERCOT,ERCOT,West_South_Central,TX,texas,USA,southern-plains,Texas,ERCOT,p65,West_South_Central
+p66,MISO,MISO,MISO_South,West_South_Central,TX,eastern,USA,southern-plains,Texas,MISO,p66,West_South_Central
+p67,ERCOT,ERCOT,ERCOT,West_South_Central,TX,texas,USA,southern-plains,Texas,ERCOT,p67,West_South_Central
+p68,MISO,MISO,MISO_North,West_North_Central,MN,eastern,USA,lake-states,Midwest,MISO,p68,West_North_Central
+p69,MISO,MISO,MISO_North,West_North_Central,IA,eastern,USA,corn-belt,Midwest,MISO,p69,West_North_Central
+p70,MISO,MISO,MISO_North,West_North_Central,IA,eastern,USA,corn-belt,Midwest,MISO,p70,West_North_Central
+p71,MISO,MISO,MISO_Central,West_North_Central,MO,eastern,USA,corn-belt,Midwest,MISO,p71,West_North_Central
+p72,MISO,MISO,MISO_Central,West_North_Central,MO,eastern,USA,corn-belt,Midwest,MISO,p72,West_North_Central
+p73,MISO,MISO,MISO_Central,West_North_Central,MO,eastern,USA,corn-belt,Midwest,MISO,p73,West_North_Central
+p74,MISO,MISO,MISO_North,East_North_Central,MI,eastern,USA,lake-states,Midwest,MISO,p74,East_North_Central
+p75,MISO,MISO,MISO_North,East_North_Central,WI,eastern,USA,lake-states,Midwest,MISO,p75,East_North_Central
+p76,MISO,MISO,MISO_North,East_North_Central,WI,eastern,USA,lake-states,Midwest,MISO,p76,East_North_Central
+p77,MISO,MISO,MISO_North,East_North_Central,WI,eastern,USA,lake-states,Midwest,MISO,p77,East_North_Central
+p78,MISO,MISO,MISO_North,East_North_Central,WI,eastern,USA,lake-states,Midwest,MISO,p78,East_North_Central
+p79,MISO,MISO,MISO_North,East_North_Central,WI,eastern,USA,lake-states,Midwest,MISO,p79,East_North_Central
+p80,PJM,PJM,PJM_West,East_North_Central,IL,eastern,USA,corn-belt,Midwest,PJM,p80,East_North_Central
+p81,MISO,MISO,MISO_Central,East_North_Central,IL,eastern,USA,corn-belt,Midwest,MISO,p81,East_North_Central
+p82,MISO,MISO,MISO_Central,East_North_Central,IL,eastern,USA,corn-belt,Midwest,MISO,p82,East_North_Central
+p83,MISO,MISO,MISO_Central,East_North_Central,IL,eastern,USA,corn-belt,Midwest,MISO,p83,East_North_Central
+p84,MISO,MISO,MISO_Central,West_North_Central,MO,eastern,USA,corn-belt,Midwest,MISO,p84,West_North_Central
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+p86,MISO,MISO,MISO_South,West_South_Central,LA,eastern,USA,delta-states,Delta,MISO,p86,West_South_Central
+p87,MISO,MISO,MISO_South,East_South_Central,MS,eastern,USA,delta-states,Delta,MISO,p87,East_South_Central
+p88,SERC_C,SERTP,SERTP,East_South_Central,MS,eastern,USA,delta-states,Delta,Tennessee_Valley_Authority,p88,East_South_Central
+p89,SERC_SE,SERTP,SERTP,East_South_Central,AL,eastern,USA,southeast,Southeast,Southern_Co_Services_Inc,p89,East_South_Central
+p90,SERC_SE,SERTP,SERTP,East_South_Central,AL,eastern,USA,southeast,Southeast,PowerSouth_Energy_Coop,p90,East_South_Central
+p91,SERC_SE,SERTP,SERTP,South_Atlantic,FL,eastern,USA,southeast,Florida,Southern_Co_Services_Inc,p91,South_Atlantic
+p92,SERC_C,SERTP,SERTP,East_South_Central,TN,eastern,USA,appalachia,Southeast,Tennessee_Valley_Authority,p92,East_South_Central
+p93,SERC_C,SERTP,SERTP,East_South_Central,KY,eastern,USA,appalachia,MidAtlantic,Tennessee_Valley_Authority,p93,East_South_Central
+p94,SERC_SE,SERTP,SERTP,South_Atlantic,GA,eastern,USA,southeast,Southeast,Southern_Co_Services_Inc,p94,South_Atlantic
+p95,SERC_E,SERTP,SERTP,South_Atlantic,SC,eastern,USA,southeast,Southeast,Duke_Energy_Carolinas_LLC,p95,South_Atlantic
+p96,SERC_E,SERTP,SERTP,South_Atlantic,SC,eastern,USA,southeast,Southeast,South_Carolina_Electric_Gas_Co,p96,South_Atlantic
+p97,SERC_E,SERTP,SERTP,South_Atlantic,NC,eastern,USA,appalachia,Southeast,Duke_Energy_Carolinas_LLC,p97,South_Atlantic
+p98,SERC_E,SERTP,SERTP,South_Atlantic,NC,eastern,USA,appalachia,Southeast,Duke_Energy_Progress_East,p98,South_Atlantic
+p99,PJM,PJM,PJM_East,South_Atlantic,VA,eastern,USA,appalachia,MidAtlantic,PJM,p99,South_Atlantic
+p100,PJM,PJM,PJM_East,South_Atlantic,VA,eastern,USA,appalachia,MidAtlantic,PJM,p100,South_Atlantic
+p101,SERC_F,FRCC,FRCC,South_Atlantic,FL,eastern,USA,southeast,Florida,Seminole_Electric_Coop_Inc,p101,South_Atlantic
+p102,SERC_F,FRCC,FRCC,South_Atlantic,FL,eastern,USA,southeast,Florida,Florida_Power_and_Light,p102,South_Atlantic
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+p106,MISO,MISO,MISO_Central,East_North_Central,IN,eastern,USA,corn-belt,Midwest,MISO,p106,East_North_Central
+p107,MISO,MISO,MISO_Central,East_North_Central,IN,eastern,USA,corn-belt,Midwest,MISO,p107,East_North_Central
+p108,MISO,MISO,MISO_Central,East_South_Central,KY,eastern,USA,appalachia,MidAtlantic,MISO,p108,East_South_Central
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+p114,PJM,PJM,PJM_East,East_North_Central,OH,eastern,USA,corn-belt,MidAtlantic,PJM,p114,East_North_Central
+p115,PJM,PJM,PJM_East,Mid_Atlantic,PA,eastern,USA,northeast,MidAtlantic,PJM,p115,Mid_Atlantic
+p116,PJM,PJM,PJM_East,South_Atlantic,WV,eastern,USA,appalachia,MidAtlantic,PJM,p116,South_Atlantic
+p117,PJM,PJM,PJM_East,South_Atlantic,WV,eastern,USA,appalachia,MidAtlantic,PJM,p117,South_Atlantic
+p118,PJM,PJM,PJM_East,South_Atlantic,VA,eastern,USA,appalachia,MidAtlantic,PJM,p118,South_Atlantic
+p119,PJM,PJM,PJM_East,Mid_Atlantic,PA,eastern,USA,northeast,MidAtlantic,PJM,z122,Mid_Atlantic
+p120,PJM,PJM,PJM_East,Mid_Atlantic,PA,eastern,USA,northeast,MidAtlantic,PJM,p120,Mid_Atlantic
+p121,PJM,PJM,PJM_East,South_Atlantic,MD,eastern,USA,northeast,MidAtlantic,PJM,p121,South_Atlantic
+p122,PJM,PJM,PJM_East,Mid_Atlantic,PA,eastern,USA,northeast,MidAtlantic,PJM,z122,Mid_Atlantic
+p123,PJM,PJM,PJM_East,South_Atlantic,MD,eastern,USA,northeast,MidAtlantic,PJM,p123,South_Atlantic
+p124,PJM,PJM,PJM_East,South_Atlantic,VA,eastern,USA,appalachia,MidAtlantic,PJM,p124,South_Atlantic
+p125,PJM,PJM,PJM_East,South_Atlantic,DE,eastern,USA,northeast,MidAtlantic,PJM,p125,South_Atlantic
+p126,PJM,PJM,PJM_East,Mid_Atlantic,NJ,eastern,USA,northeast,MidAtlantic,PJM,p126,Mid_Atlantic
+p127,NPCC_NY,NYISO,NYISO,Mid_Atlantic,NY,eastern,USA,northeast,NewYork,NYISO,p127,Mid_Atlantic
+p128,NPCC_NY,NYISO,NYISO,Mid_Atlantic,NY,eastern,USA,northeast,NewYork,NYISO,p128,Mid_Atlantic
+p129,NPCC_NE,ISONE,ISONE,New_England,VT,eastern,USA,northeast,NewEngland,ISONE,p129,New_England
+p130,NPCC_NE,ISONE,ISONE,New_England,NH,eastern,USA,northeast,NewEngland,ISONE,p130,New_England
+p131,NPCC_NE,ISONE,ISONE,New_England,MA,eastern,USA,northeast,NewEngland,ISONE,p131,New_England
+p132,NPCC_NE,ISONE,ISONE,New_England,CT,eastern,USA,northeast,NewEngland,ISONE,p132,New_England
+p133,NPCC_NE,ISONE,ISONE,New_England,RI,eastern,USA,northeast,NewEngland,ISONE,p133,New_England
+p134,NPCC_NE,ISONE,ISONE,New_England,ME,eastern,USA,northeast,NewEngland,ISONE,p134,New_England
diff --git a/inputs/zones/z48/hierarchy_from134.csv b/inputs/zones/z48/hierarchy_from134.csv
index c0275442..0be59e10 100644
--- a/inputs/zones/z48/hierarchy_from134.csv
+++ b/inputs/zones/z48/hierarchy_from134.csv
@@ -1,135 +1,135 @@
-ba,nercr,transreg,transgrp,cendiv,st,interconnect,country,usda_region,h2ptcreg,hurdlereg,aggreg
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-p2,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,WA,western,USA,pacific,Northwest,Bonneville_Power_Administration,WA
-p3,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,WA,western,USA,pacific,Northwest,Bonneville_Power_Administration,WA
-p4,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,WA,western,USA,pacific,Northwest,Bonneville_Power_Administration,WA
-p5,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,OR,western,USA,pacific,Northwest,Bonneville_Power_Administration,OR
-p6,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,OR,western,USA,pacific,Northwest,Bonneville_Power_Administration,OR
-p7,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,OR,western,USA,pacific,Northwest,Bonneville_Power_Administration,OR
-p8,WECC_CA,CAISO,CAISO,Pacific,CA,western,USA,pacific,California,CAISO,CA
-p9,WECC_CA,CAISO,CAISO,Pacific,CA,western,USA,pacific,California,CAISO,CA
-p10,WECC_CA,CAISO,CAISO,Pacific,CA,western,USA,pacific,California,CAISO,CA
-p11,WECC_CA,CAISO,CAISO,Pacific,CA,western,USA,pacific,California,CAISO,CA
-p12,WECC_NW,NorthernGrid,NorthernGrid_South,Mountain,NV,western,USA,mountain,Mountain,Nevada_Power_Co,NV
-p13,WECC_NW,NorthernGrid,NorthernGrid_South,Mountain,NV,western,USA,mountain,Mountain,Nevada_Power_Co,NV
-p14,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,ID,western,USA,mountain,Northwest,Idaho_Power_Co,ID
-p15,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,ID,western,USA,mountain,Northwest,Idaho_Power_Co,ID
-p16,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,ID,western,USA,mountain,Northwest,Idaho_Power_Co,ID
-p17,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,MT,western,USA,mountain,Mountain,Northwestern_Energy,MT
-p18,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,MT,western,USA,mountain,Mountain,Northwestern_Energy,MT
-p19,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,MT,western,USA,mountain,Mountain,Northwestern_Energy,MT
-p20,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,MT,western,USA,mountain,Mountain,Northwestern_Energy,MT
-p21,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,WY,western,USA,mountain,Mountain,PacifiCorp_East,WY
-p22,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,WY,western,USA,mountain,Mountain,PacifiCorp_East,WY
-p23,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,WY,western,USA,mountain,Mountain,PacifiCorp_East,WY
-p24,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,WY,western,USA,mountain,Mountain,PacifiCorp_East,WY
-p25,WECC_NW,NorthernGrid,NorthernGrid_South,Mountain,UT,western,USA,mountain,Mountain,PacifiCorp_East,UT
-p26,WECC_NW,NorthernGrid,NorthernGrid_South,Mountain,UT,western,USA,mountain,Mountain,PacifiCorp_East,UT
-p27,WECC_SW,WestConnect,WestConnect_South,Mountain,AZ,western,USA,mountain,Southwest,Arizona_Public_Service_Co,AZ
-p28,WECC_SW,WestConnect,WestConnect_South,Mountain,AZ,western,USA,mountain,Southwest,Arizona_Public_Service_Co,AZ
-p29,WECC_SW,WestConnect,WestConnect_South,Mountain,AZ,western,USA,mountain,Southwest,Arizona_Public_Service_Co,AZ
-p30,WECC_SW,WestConnect,WestConnect_South,Mountain,AZ,western,USA,mountain,Southwest,Arizona_Public_Service_Co,AZ
-p31,WECC_SW,WestConnect,WestConnect_South,Mountain,NM,western,USA,mountain,Southwest,Public_Service_Co_of_New_Mexico,NM
-p32,SPP,SPP,SPP_North,West_North_Central,SD,eastern,USA,northern-plains,Plains,SPP,SD
-p33,WECC_NW,WestConnect,WestConnect_North,Mountain,CO,western,USA,mountain,Mountain,Public_Service_Co_of_Colorado,CO
-p34,WECC_NW,WestConnect,WestConnect_North,Mountain,CO,western,USA,mountain,Mountain,Public_Service_Co_of_Colorado,CO
-p35,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,MT,western,USA,mountain,Mountain,Northwestern_Energy,MT
-p36,SPP,SPP,SPP_North,West_North_Central,ND,eastern,USA,northern-plains,Plains,SPP,ND
-p37,SPP,SPP,SPP_North,West_North_Central,ND,eastern,USA,northern-plains,Plains,SPP,ND
-p38,SPP,SPP,SPP_North,West_North_Central,SD,eastern,USA,northern-plains,Plains,SPP,SD
-p39,SPP,SPP,SPP_North,West_North_Central,NE,eastern,USA,northern-plains,Plains,SPP,NE
-p40,SPP,SPP,SPP_North,West_North_Central,NE,eastern,USA,northern-plains,Plains,SPP,NE
-p41,SPP,SPP,SPP_North,West_North_Central,NE,eastern,USA,northern-plains,Plains,SPP,NE
-p42,MISO,MISO,MISO_North,West_North_Central,MN,eastern,USA,lake-states,Midwest,MISO,MN
-p43,MISO,MISO,MISO_North,West_North_Central,MN,eastern,USA,lake-states,Midwest,MISO,MN
-p44,MISO,MISO,MISO_North,West_North_Central,MN,eastern,USA,lake-states,Midwest,MISO,MN
-p45,MISO,MISO,MISO_North,West_North_Central,IA,eastern,USA,corn-belt,Midwest,MISO,IA
-p46,MISO,MISO,MISO_North,East_North_Central,WI,eastern,USA,lake-states,Midwest,MISO,WI
-p47,WECC_SW,WestConnect,WestConnect_South,Mountain,NM,western,USA,mountain,Southwest,Public_Service_Co_of_New_Mexico,NM
-p48,ERCOT,ERCOT,ERCOT,West_South_Central,TX,texas,USA,southern-plains,Texas,ERCOT,TX
-p49,SPP,SPP,SPP_South,West_South_Central,OK,eastern,USA,southern-plains,Plains,SPP,OK
-p50,SPP,SPP,SPP_South,West_South_Central,OK,eastern,USA,southern-plains,Plains,SPP,OK
-p51,SPP,SPP,SPP_South,West_South_Central,OK,eastern,USA,southern-plains,Plains,SPP,OK
-p52,SPP,SPP,SPP_South,West_North_Central,KS,eastern,USA,northern-plains,Plains,SPP,KS
-p53,SPP,SPP,SPP_South,West_North_Central,KS,eastern,USA,northern-plains,Plains,SPP,KS
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+p102,SERC_F,FRCC,FRCC,South_Atlantic,FL,eastern,USA,southeast,Florida,Seminole_Electric_Coop_Inc,FL,South_Atlantic
+p103,MISO,MISO,MISO_Central,East_North_Central,MI,eastern,USA,lake-states,Midwest,MISO,MI,East_North_Central
+p104,MISO,MISO,MISO_Central,East_North_Central,MI,eastern,USA,lake-states,Midwest,MISO,MI,East_North_Central
+p105,MISO,MISO,MISO_Central,East_North_Central,IN,eastern,USA,corn-belt,Midwest,MISO,IN,East_North_Central
+p106,MISO,MISO,MISO_Central,East_North_Central,IN,eastern,USA,corn-belt,Midwest,MISO,IN,East_North_Central
+p107,MISO,MISO,MISO_Central,East_North_Central,IN,eastern,USA,corn-belt,Midwest,MISO,IN,East_North_Central
+p108,PJM,PJM,PJM_East,East_South_Central,KY,eastern,USA,appalachia,MidAtlantic,PJM,KY,East_South_Central
+p109,PJM,PJM,PJM_East,East_South_Central,KY,eastern,USA,appalachia,MidAtlantic,PJM,KY,East_South_Central
+p110,PJM,PJM,PJM_East,East_South_Central,KY,eastern,USA,appalachia,MidAtlantic,PJM,KY,East_South_Central
+p111,PJM,PJM,PJM_East,East_North_Central,OH,eastern,USA,corn-belt,MidAtlantic,PJM,OH,East_North_Central
+p112,PJM,PJM,PJM_East,East_North_Central,OH,eastern,USA,corn-belt,MidAtlantic,PJM,OH,East_North_Central
+p113,PJM,PJM,PJM_East,East_North_Central,OH,eastern,USA,corn-belt,MidAtlantic,PJM,OH,East_North_Central
+p114,PJM,PJM,PJM_East,East_North_Central,OH,eastern,USA,corn-belt,MidAtlantic,PJM,OH,East_North_Central
+p115,PJM,PJM,PJM_East,Mid_Atlantic,PA,eastern,USA,northeast,MidAtlantic,PJM,PA,Mid_Atlantic
+p116,PJM,PJM,PJM_East,South_Atlantic,WV,eastern,USA,appalachia,MidAtlantic,PJM,WV,South_Atlantic
+p117,PJM,PJM,PJM_East,South_Atlantic,WV,eastern,USA,appalachia,MidAtlantic,PJM,WV,South_Atlantic
+p118,PJM,PJM,PJM_East,South_Atlantic,VA,eastern,USA,appalachia,MidAtlantic,PJM,VA,South_Atlantic
+p119,PJM,PJM,PJM_East,Mid_Atlantic,PA,eastern,USA,northeast,MidAtlantic,PJM,PA,Mid_Atlantic
+p120,PJM,PJM,PJM_East,Mid_Atlantic,PA,eastern,USA,northeast,MidAtlantic,PJM,PA,Mid_Atlantic
+p121,PJM,PJM,PJM_East,South_Atlantic,MD,eastern,USA,northeast,MidAtlantic,PJM,MD,South_Atlantic
+p122,PJM,PJM,PJM_East,Mid_Atlantic,PA,eastern,USA,northeast,MidAtlantic,PJM,PA,Mid_Atlantic
+p123,PJM,PJM,PJM_East,South_Atlantic,MD,eastern,USA,northeast,MidAtlantic,PJM,MD,South_Atlantic
+p124,PJM,PJM,PJM_East,South_Atlantic,VA,eastern,USA,appalachia,MidAtlantic,PJM,VA,South_Atlantic
+p125,PJM,PJM,PJM_East,South_Atlantic,DE,eastern,USA,northeast,MidAtlantic,PJM,DE,South_Atlantic
+p126,PJM,PJM,PJM_East,Mid_Atlantic,NJ,eastern,USA,northeast,MidAtlantic,PJM,NJ,Mid_Atlantic
+p127,NPCC_NY,NYISO,NYISO,Mid_Atlantic,NY,eastern,USA,northeast,NewYork,NYISO,NY,Mid_Atlantic
+p128,NPCC_NY,NYISO,NYISO,Mid_Atlantic,NY,eastern,USA,northeast,NewYork,NYISO,NY,Mid_Atlantic
+p129,NPCC_NE,ISONE,ISONE,New_England,VT,eastern,USA,northeast,NewEngland,ISONE,VT,New_England
+p130,NPCC_NE,ISONE,ISONE,New_England,NH,eastern,USA,northeast,NewEngland,ISONE,NH,New_England
+p131,NPCC_NE,ISONE,ISONE,New_England,MA,eastern,USA,northeast,NewEngland,ISONE,MA,New_England
+p132,NPCC_NE,ISONE,ISONE,New_England,CT,eastern,USA,northeast,NewEngland,ISONE,CT,New_England
+p133,NPCC_NE,ISONE,ISONE,New_England,RI,eastern,USA,northeast,NewEngland,ISONE,RI,New_England
+p134,NPCC_NE,ISONE,ISONE,New_England,ME,eastern,USA,northeast,NewEngland,ISONE,ME,New_England
diff --git a/inputs/zones/z54/hierarchy_from134.csv b/inputs/zones/z54/hierarchy_from134.csv
index 59b418b3..21d862d8 100644
--- a/inputs/zones/z54/hierarchy_from134.csv
+++ b/inputs/zones/z54/hierarchy_from134.csv
@@ -1,135 +1,135 @@
-ba,nercr,transreg,transgrp,cendiv,st,interconnect,country,usda_region,h2ptcreg,hurdlereg,aggreg
-p1,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,WA,western,USA,pacific,Northwest,Bonneville_Power_Administration,WA
-p2,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,WA,western,USA,pacific,Northwest,Bonneville_Power_Administration,WA
-p3,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,WA,western,USA,pacific,Northwest,Bonneville_Power_Administration,WA
-p4,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,WA,western,USA,pacific,Northwest,Bonneville_Power_Administration,WA
-p5,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,OR,western,USA,pacific,Northwest,Bonneville_Power_Administration,OR
-p6,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,OR,western,USA,pacific,Northwest,Bonneville_Power_Administration,OR
-p7,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,OR,western,USA,pacific,Northwest,Bonneville_Power_Administration,OR
-p8,WECC_CA,CAISO,CAISO,Pacific,CA,western,USA,pacific,California,CAISO,CA_N
-p9,WECC_CA,CAISO,CAISO,Pacific,CA,western,USA,pacific,California,CAISO,CA_N
-p10,WECC_CA,CAISO,CAISO,Pacific,CA,western,USA,pacific,California,CAISO,CA_S
-p11,WECC_CA,CAISO,CAISO,Pacific,CA,western,USA,pacific,California,CAISO,CA_S
-p12,WECC_NW,NorthernGrid,NorthernGrid_South,Mountain,NV,western,USA,mountain,Mountain,Nevada_Power_Co,NV
-p13,WECC_NW,NorthernGrid,NorthernGrid_South,Mountain,NV,western,USA,mountain,Mountain,Nevada_Power_Co,NV
-p14,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,ID,western,USA,mountain,Northwest,Idaho_Power_Co,ID
-p15,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,ID,western,USA,mountain,Northwest,Idaho_Power_Co,ID
-p16,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,ID,western,USA,mountain,Northwest,Idaho_Power_Co,ID
-p17,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,MT,western,USA,mountain,Mountain,Northwestern_Energy,MT
-p18,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,MT,western,USA,mountain,Mountain,Northwestern_Energy,MT
-p19,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,MT,western,USA,mountain,Mountain,Northwestern_Energy,MT
-p20,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,MT,western,USA,mountain,Mountain,Northwestern_Energy,MT
-p21,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,WY,western,USA,mountain,Mountain,PacifiCorp_East,WY
-p22,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,WY,western,USA,mountain,Mountain,PacifiCorp_East,WY
-p23,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,WY,western,USA,mountain,Mountain,PacifiCorp_East,WY
-p24,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,WY,western,USA,mountain,Mountain,PacifiCorp_East,WY
-p25,WECC_NW,NorthernGrid,NorthernGrid_South,Mountain,UT,western,USA,mountain,Mountain,PacifiCorp_East,UT
-p26,WECC_NW,NorthernGrid,NorthernGrid_South,Mountain,UT,western,USA,mountain,Mountain,PacifiCorp_East,UT
-p27,WECC_SW,WestConnect,WestConnect_South,Mountain,AZ,western,USA,mountain,Southwest,Arizona_Public_Service_Co,AZ
-p28,WECC_SW,WestConnect,WestConnect_South,Mountain,AZ,western,USA,mountain,Southwest,Arizona_Public_Service_Co,AZ
-p29,WECC_SW,WestConnect,WestConnect_South,Mountain,AZ,western,USA,mountain,Southwest,Arizona_Public_Service_Co,AZ
-p30,WECC_SW,WestConnect,WestConnect_South,Mountain,AZ,western,USA,mountain,Southwest,Arizona_Public_Service_Co,AZ
-p31,WECC_SW,WestConnect,WestConnect_South,Mountain,NM,western,USA,mountain,Southwest,Public_Service_Co_of_New_Mexico,NM
-p32,SPP,SPP,SPP_North,West_North_Central,SD,eastern,USA,northern-plains,Plains,SPP,SD
-p33,WECC_NW,WestConnect,WestConnect_North,Mountain,CO,western,USA,mountain,Mountain,Public_Service_Co_of_Colorado,CO
-p34,WECC_NW,WestConnect,WestConnect_North,Mountain,CO,western,USA,mountain,Mountain,Public_Service_Co_of_Colorado,CO
-p35,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,MT,western,USA,mountain,Mountain,Northwestern_Energy,MT
-p36,SPP,SPP,SPP_North,West_North_Central,ND,eastern,USA,northern-plains,Plains,SPP,ND
-p37,SPP,SPP,SPP_North,West_North_Central,ND,eastern,USA,northern-plains,Plains,SPP,ND
-p38,SPP,SPP,SPP_North,West_North_Central,SD,eastern,USA,northern-plains,Plains,SPP,SD
-p39,SPP,SPP,SPP_North,West_North_Central,NE,eastern,USA,northern-plains,Plains,SPP,NE
-p40,SPP,SPP,SPP_North,West_North_Central,NE,eastern,USA,northern-plains,Plains,SPP,NE
-p41,SPP,SPP,SPP_North,West_North_Central,NE,eastern,USA,northern-plains,Plains,SPP,NE
-p42,MISO,MISO,MISO_North,West_North_Central,MN,eastern,USA,lake-states,Midwest,MISO,MN
-p43,MISO,MISO,MISO_North,West_North_Central,MN,eastern,USA,lake-states,Midwest,MISO,MN
-p44,MISO,MISO,MISO_North,West_North_Central,MN,eastern,USA,lake-states,Midwest,MISO,MN
-p45,MISO,MISO,MISO_North,West_North_Central,IA,eastern,USA,corn-belt,Midwest,MISO,IA
-p46,MISO,MISO,MISO_North,East_North_Central,WI,eastern,USA,lake-states,Midwest,MISO,WI
-p47,WECC_SW,WestConnect,WestConnect_South,Mountain,NM,western,USA,mountain,Southwest,Public_Service_Co_of_New_Mexico,NM
-p48,SPP,SPP,SPP_South,West_South_Central,TX,eastern,USA,southern-plains,Texas,SPP,TX_SPP
-p49,SPP,SPP,SPP_South,West_South_Central,OK,eastern,USA,southern-plains,Plains,SPP,OK
-p50,SPP,SPP,SPP_South,West_South_Central,OK,eastern,USA,southern-plains,Plains,SPP,OK
-p51,SPP,SPP,SPP_South,West_South_Central,OK,eastern,USA,southern-plains,Plains,SPP,OK
-p52,SPP,SPP,SPP_South,West_North_Central,KS,eastern,USA,northern-plains,Plains,SPP,KS
-p53,SPP,SPP,SPP_South,West_North_Central,KS,eastern,USA,northern-plains,Plains,SPP,KS
-p54,MISO,MISO,MISO_Central,West_North_Central,MO,eastern,USA,corn-belt,Midwest,MISO,MO
-p55,MISO,MISO,MISO_Central,West_North_Central,MO,eastern,USA,corn-belt,Midwest,MISO,MO
-p56,MISO,MISO,MISO_South,West_South_Central,AR,eastern,USA,delta-states,Delta,MISO,AR
-p57,MISO,MISO,MISO_South,West_South_Central,TX,eastern,USA,southern-plains,Texas,MISO,TX_MISO
-p58,MISO,MISO,MISO_South,West_South_Central,LA,eastern,USA,delta-states,Delta,MISO,LA
-p59,ERCOT,ERCOT,ERCOT,West_South_Central,TX,texas,USA,southern-plains,Texas,ERCOT,TX_ERCOT_W
-p60,ERCOT,ERCOT,ERCOT,West_South_Central,TX,texas,USA,southern-plains,Texas,ERCOT,TX_ERCOT_W
-p61,ERCOT,ERCOT,ERCOT,West_South_Central,TX,texas,USA,southern-plains,Texas,ERCOT,TX_ERCOT_W
-p62,ERCOT,ERCOT,ERCOT,West_South_Central,TX,texas,USA,southern-plains,Texas,ERCOT,TX_ERCOT_W
-p63,ERCOT,ERCOT,ERCOT,West_South_Central,TX,texas,USA,southern-plains,Texas,ERCOT,TX_ERCOT_E
-p64,ERCOT,ERCOT,ERCOT,West_South_Central,TX,texas,USA,southern-plains,Texas,ERCOT,TX_ERCOT_E
-p65,ERCOT,ERCOT,ERCOT,West_South_Central,TX,texas,USA,southern-plains,Texas,ERCOT,TX_ERCOT_E
-p66,MISO,MISO,MISO_South,West_South_Central,TX,eastern,USA,southern-plains,Texas,MISO,TX_MISO
-p67,ERCOT,ERCOT,ERCOT,West_South_Central,TX,texas,USA,southern-plains,Texas,ERCOT,TX_ERCOT_E
-p68,MISO,MISO,MISO_North,West_North_Central,MN,eastern,USA,lake-states,Midwest,MISO,MN
-p69,MISO,MISO,MISO_North,West_North_Central,IA,eastern,USA,corn-belt,Midwest,MISO,IA
-p70,MISO,MISO,MISO_North,West_North_Central,IA,eastern,USA,corn-belt,Midwest,MISO,IA
-p71,MISO,MISO,MISO_Central,West_North_Central,MO,eastern,USA,corn-belt,Midwest,MISO,MO
-p72,MISO,MISO,MISO_Central,West_North_Central,MO,eastern,USA,corn-belt,Midwest,MISO,MO
-p73,MISO,MISO,MISO_Central,West_North_Central,MO,eastern,USA,corn-belt,Midwest,MISO,MO
-p74,MISO,MISO,MISO_Central,East_North_Central,MI,eastern,USA,lake-states,Midwest,MISO,MI
-p75,MISO,MISO,MISO_North,East_North_Central,WI,eastern,USA,lake-states,Midwest,MISO,WI
-p76,MISO,MISO,MISO_North,East_North_Central,WI,eastern,USA,lake-states,Midwest,MISO,WI
-p77,MISO,MISO,MISO_North,East_North_Central,WI,eastern,USA,lake-states,Midwest,MISO,WI
-p78,MISO,MISO,MISO_North,East_North_Central,WI,eastern,USA,lake-states,Midwest,MISO,WI
-p79,MISO,MISO,MISO_North,East_North_Central,WI,eastern,USA,lake-states,Midwest,MISO,WI
-p80,PJM,PJM,PJM_West,East_North_Central,IL,eastern,USA,corn-belt,Midwest,PJM,IL_PJM
-p81,MISO,MISO,MISO_Central,East_North_Central,IL,eastern,USA,corn-belt,Midwest,MISO,IL_MISO
-p82,MISO,MISO,MISO_Central,East_North_Central,IL,eastern,USA,corn-belt,Midwest,MISO,IL_MISO
-p83,MISO,MISO,MISO_Central,East_North_Central,IL,eastern,USA,corn-belt,Midwest,MISO,IL_MISO
-p84,MISO,MISO,MISO_Central,West_North_Central,MO,eastern,USA,corn-belt,Midwest,MISO,MO
-p85,MISO,MISO,MISO_South,West_South_Central,AR,eastern,USA,delta-states,Delta,MISO,AR
-p86,MISO,MISO,MISO_South,West_South_Central,LA,eastern,USA,delta-states,Delta,MISO,LA
-p87,MISO,MISO,MISO_South,East_South_Central,MS,eastern,USA,delta-states,Delta,MISO,MS
-p88,MISO,MISO,MISO_South,East_South_Central,MS,eastern,USA,delta-states,Delta,MISO,MS
-p89,SERC_SE,SERTP,SERTP,East_South_Central,AL,eastern,USA,southeast,Southeast,PowerSouth_Energy_Coop,AL
-p90,SERC_SE,SERTP,SERTP,East_South_Central,AL,eastern,USA,southeast,Southeast,PowerSouth_Energy_Coop,AL
-p91,SERC_F,FRCC,FRCC,South_Atlantic,FL,eastern,USA,southeast,Florida,Seminole_Electric_Coop_Inc,FL
-p92,SERC_C,SERTP,SERTP,East_South_Central,TN,eastern,USA,appalachia,Southeast,Tennessee_Valley_Authority,TN
-p93,PJM,PJM,PJM_East,East_South_Central,KY,eastern,USA,appalachia,MidAtlantic,PJM,KY
-p94,SERC_SE,SERTP,SERTP,South_Atlantic,GA,eastern,USA,southeast,Southeast,Southern_Co_Services_Inc,GA
-p95,SERC_E,SERTP,SERTP,South_Atlantic,SC,eastern,USA,southeast,Southeast,Duke_Energy_Carolinas_LLC,SC
-p96,SERC_E,SERTP,SERTP,South_Atlantic,SC,eastern,USA,southeast,Southeast,Duke_Energy_Carolinas_LLC,SC
-p97,SERC_E,SERTP,SERTP,South_Atlantic,NC,eastern,USA,appalachia,Southeast,Duke_Energy_Carolinas_LLC,NC
-p98,SERC_E,SERTP,SERTP,South_Atlantic,NC,eastern,USA,appalachia,Southeast,Duke_Energy_Carolinas_LLC,NC
-p99,PJM,PJM,PJM_East,South_Atlantic,VA,eastern,USA,appalachia,MidAtlantic,PJM,VA
-p100,PJM,PJM,PJM_East,South_Atlantic,VA,eastern,USA,appalachia,MidAtlantic,PJM,VA
-p101,SERC_F,FRCC,FRCC,South_Atlantic,FL,eastern,USA,southeast,Florida,Seminole_Electric_Coop_Inc,FL
-p102,SERC_F,FRCC,FRCC,South_Atlantic,FL,eastern,USA,southeast,Florida,Seminole_Electric_Coop_Inc,FL
-p103,MISO,MISO,MISO_Central,East_North_Central,MI,eastern,USA,lake-states,Midwest,MISO,MI
-p104,MISO,MISO,MISO_Central,East_North_Central,MI,eastern,USA,lake-states,Midwest,MISO,MI
-p105,MISO,MISO,MISO_Central,East_North_Central,IN,eastern,USA,corn-belt,Midwest,MISO,IN
-p106,MISO,MISO,MISO_Central,East_North_Central,IN,eastern,USA,corn-belt,Midwest,MISO,IN
-p107,MISO,MISO,MISO_Central,East_North_Central,IN,eastern,USA,corn-belt,Midwest,MISO,IN
-p108,PJM,PJM,PJM_East,East_South_Central,KY,eastern,USA,appalachia,MidAtlantic,PJM,KY
-p109,PJM,PJM,PJM_East,East_South_Central,KY,eastern,USA,appalachia,MidAtlantic,PJM,KY
-p110,PJM,PJM,PJM_East,East_South_Central,KY,eastern,USA,appalachia,MidAtlantic,PJM,KY
-p111,PJM,PJM,PJM_East,East_North_Central,OH,eastern,USA,corn-belt,MidAtlantic,PJM,OH
-p112,PJM,PJM,PJM_East,East_North_Central,OH,eastern,USA,corn-belt,MidAtlantic,PJM,OH
-p113,PJM,PJM,PJM_East,East_North_Central,OH,eastern,USA,corn-belt,MidAtlantic,PJM,OH
-p114,PJM,PJM,PJM_East,East_North_Central,OH,eastern,USA,corn-belt,MidAtlantic,PJM,OH
-p115,PJM,PJM,PJM_East,Mid_Atlantic,PA,eastern,USA,northeast,MidAtlantic,PJM,PA
-p116,PJM,PJM,PJM_East,South_Atlantic,WV,eastern,USA,appalachia,MidAtlantic,PJM,WV
-p117,PJM,PJM,PJM_East,South_Atlantic,WV,eastern,USA,appalachia,MidAtlantic,PJM,WV
-p118,PJM,PJM,PJM_East,South_Atlantic,VA,eastern,USA,appalachia,MidAtlantic,PJM,VA
-p119,PJM,PJM,PJM_East,Mid_Atlantic,PA,eastern,USA,northeast,MidAtlantic,PJM,PA
-p120,PJM,PJM,PJM_East,Mid_Atlantic,PA,eastern,USA,northeast,MidAtlantic,PJM,PA
-p121,PJM,PJM,PJM_East,South_Atlantic,MD,eastern,USA,northeast,MidAtlantic,PJM,MD
-p122,PJM,PJM,PJM_East,Mid_Atlantic,PA,eastern,USA,northeast,MidAtlantic,PJM,PA
-p123,PJM,PJM,PJM_East,South_Atlantic,MD,eastern,USA,northeast,MidAtlantic,PJM,MD
-p124,PJM,PJM,PJM_East,South_Atlantic,VA,eastern,USA,appalachia,MidAtlantic,PJM,VA
-p125,PJM,PJM,PJM_East,South_Atlantic,DE,eastern,USA,northeast,MidAtlantic,PJM,DE
-p126,PJM,PJM,PJM_East,Mid_Atlantic,NJ,eastern,USA,northeast,MidAtlantic,PJM,NJ
-p127,NPCC_NY,NYISO,NYISO,Mid_Atlantic,NY,eastern,USA,northeast,NewYork,NYISO,NY_UP
-p128,NPCC_NY,NYISO,NYISO,Mid_Atlantic,NY,eastern,USA,northeast,NewYork,NYISO,NY_NYCLI
-p129,NPCC_NE,ISONE,ISONE,New_England,VT,eastern,USA,northeast,NewEngland,ISONE,VT
-p130,NPCC_NE,ISONE,ISONE,New_England,NH,eastern,USA,northeast,NewEngland,ISONE,NH
-p131,NPCC_NE,ISONE,ISONE,New_England,MA,eastern,USA,northeast,NewEngland,ISONE,MA
-p132,NPCC_NE,ISONE,ISONE,New_England,CT,eastern,USA,northeast,NewEngland,ISONE,CT
-p133,NPCC_NE,ISONE,ISONE,New_England,RI,eastern,USA,northeast,NewEngland,ISONE,RI
-p134,NPCC_NE,ISONE,ISONE,New_England,ME,eastern,USA,northeast,NewEngland,ISONE,ME
+ba,nercr,transreg,transgrp,cendiv,st,interconnect,country,usda_region,h2ptcreg,hurdlereg,aggreg,gasreg
+p1,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,WA,western,USA,pacific,Northwest,Bonneville_Power_Administration,WA,Northwest
+p2,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,WA,western,USA,pacific,Northwest,Bonneville_Power_Administration,WA,Northwest
+p3,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,WA,western,USA,pacific,Northwest,Bonneville_Power_Administration,WA,Northwest
+p4,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,WA,western,USA,pacific,Northwest,Bonneville_Power_Administration,WA,Northwest
+p5,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,OR,western,USA,pacific,Northwest,Bonneville_Power_Administration,OR,Northwest
+p6,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,OR,western,USA,pacific,Northwest,Bonneville_Power_Administration,OR,Northwest
+p7,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,OR,western,USA,pacific,Northwest,Bonneville_Power_Administration,OR,Northwest
+p8,WECC_CA,CAISO,CAISO,Pacific,CA,western,USA,pacific,California,CAISO,CA_N,California
+p9,WECC_CA,CAISO,CAISO,Pacific,CA,western,USA,pacific,California,CAISO,CA_N,California
+p10,WECC_CA,CAISO,CAISO,Pacific,CA,western,USA,pacific,California,CAISO,CA_S,California
+p11,WECC_CA,CAISO,CAISO,Pacific,CA,western,USA,pacific,California,CAISO,CA_S,California
+p12,WECC_NW,NorthernGrid,NorthernGrid_South,Mountain,NV,western,USA,mountain,Mountain,Nevada_Power_Co,NV,Mountain
+p13,WECC_NW,NorthernGrid,NorthernGrid_South,Mountain,NV,western,USA,mountain,Mountain,Nevada_Power_Co,NV,Mountain
+p14,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,ID,western,USA,mountain,Northwest,Idaho_Power_Co,ID,Mountain
+p15,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,ID,western,USA,mountain,Northwest,Idaho_Power_Co,ID,Mountain
+p16,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,ID,western,USA,mountain,Northwest,Idaho_Power_Co,ID,Mountain
+p17,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,MT,western,USA,mountain,Mountain,Northwestern_Energy,MT,Mountain
+p18,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,MT,western,USA,mountain,Mountain,Northwestern_Energy,MT,Mountain
+p19,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,MT,western,USA,mountain,Mountain,Northwestern_Energy,MT,Mountain
+p20,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,MT,western,USA,mountain,Mountain,Northwestern_Energy,MT,Mountain
+p21,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,WY,western,USA,mountain,Mountain,PacifiCorp_East,WY,Mountain
+p22,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,WY,western,USA,mountain,Mountain,PacifiCorp_East,WY,Mountain
+p23,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,WY,western,USA,mountain,Mountain,PacifiCorp_East,WY,Mountain
+p24,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,WY,western,USA,mountain,Mountain,PacifiCorp_East,WY,Mountain
+p25,WECC_NW,NorthernGrid,NorthernGrid_South,Mountain,UT,western,USA,mountain,Mountain,PacifiCorp_East,UT,Mountain
+p26,WECC_NW,NorthernGrid,NorthernGrid_South,Mountain,UT,western,USA,mountain,Mountain,PacifiCorp_East,UT,Mountain
+p27,WECC_SW,WestConnect,WestConnect_South,Mountain,AZ,western,USA,mountain,Southwest,Arizona_Public_Service_Co,AZ,Southwest
+p28,WECC_SW,WestConnect,WestConnect_South,Mountain,AZ,western,USA,mountain,Southwest,Arizona_Public_Service_Co,AZ,Southwest
+p29,WECC_SW,WestConnect,WestConnect_South,Mountain,AZ,western,USA,mountain,Southwest,Arizona_Public_Service_Co,AZ,Southwest
+p30,WECC_SW,WestConnect,WestConnect_South,Mountain,AZ,western,USA,mountain,Southwest,Arizona_Public_Service_Co,AZ,Southwest
+p31,WECC_SW,WestConnect,WestConnect_South,Mountain,NM,western,USA,mountain,Southwest,Public_Service_Co_of_New_Mexico,NM,Southwest
+p32,SPP,SPP,SPP_North,West_North_Central,SD,eastern,USA,northern-plains,Plains,SPP,SD,West_North_Central
+p33,WECC_NW,WestConnect,WestConnect_North,Mountain,CO,western,USA,mountain,Mountain,Public_Service_Co_of_Colorado,CO,Mountain
+p34,WECC_NW,WestConnect,WestConnect_North,Mountain,CO,western,USA,mountain,Mountain,Public_Service_Co_of_Colorado,CO,Mountain
+p35,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,MT,western,USA,mountain,Mountain,Northwestern_Energy,MT,Mountain
+p36,SPP,SPP,SPP_North,West_North_Central,ND,eastern,USA,northern-plains,Plains,SPP,ND,West_North_Central
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+p40,SPP,SPP,SPP_North,West_North_Central,NE,eastern,USA,northern-plains,Plains,SPP,NE,West_North_Central
+p41,SPP,SPP,SPP_North,West_North_Central,NE,eastern,USA,northern-plains,Plains,SPP,NE,West_North_Central
+p42,MISO,MISO,MISO_North,West_North_Central,MN,eastern,USA,lake-states,Midwest,MISO,MN,West_North_Central
+p43,MISO,MISO,MISO_North,West_North_Central,MN,eastern,USA,lake-states,Midwest,MISO,MN,West_North_Central
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+p46,MISO,MISO,MISO_North,East_North_Central,WI,eastern,USA,lake-states,Midwest,MISO,WI,East_North_Central
+p47,WECC_SW,WestConnect,WestConnect_South,Mountain,NM,western,USA,mountain,Southwest,Public_Service_Co_of_New_Mexico,NM,Southwest
+p48,SPP,SPP,SPP_South,West_South_Central,TX,eastern,USA,southern-plains,Texas,SPP,TX_SPP,West_South_Central
+p49,SPP,SPP,SPP_South,West_South_Central,OK,eastern,USA,southern-plains,Plains,SPP,OK,West_South_Central
+p50,SPP,SPP,SPP_South,West_South_Central,OK,eastern,USA,southern-plains,Plains,SPP,OK,West_South_Central
+p51,SPP,SPP,SPP_South,West_South_Central,OK,eastern,USA,southern-plains,Plains,SPP,OK,West_South_Central
+p52,SPP,SPP,SPP_South,West_North_Central,KS,eastern,USA,northern-plains,Plains,SPP,KS,West_North_Central
+p53,SPP,SPP,SPP_South,West_North_Central,KS,eastern,USA,northern-plains,Plains,SPP,KS,West_North_Central
+p54,MISO,MISO,MISO_Central,West_North_Central,MO,eastern,USA,corn-belt,Midwest,MISO,MO,West_North_Central
+p55,MISO,MISO,MISO_Central,West_North_Central,MO,eastern,USA,corn-belt,Midwest,MISO,MO,West_North_Central
+p56,MISO,MISO,MISO_South,West_South_Central,AR,eastern,USA,delta-states,Delta,MISO,AR,West_South_Central
+p57,MISO,MISO,MISO_South,West_South_Central,TX,eastern,USA,southern-plains,Texas,MISO,TX_MISO,West_South_Central
+p58,MISO,MISO,MISO_South,West_South_Central,LA,eastern,USA,delta-states,Delta,MISO,LA,West_South_Central
+p59,ERCOT,ERCOT,ERCOT,West_South_Central,TX,texas,USA,southern-plains,Texas,ERCOT,TX_ERCOT_W,West_South_Central
+p60,ERCOT,ERCOT,ERCOT,West_South_Central,TX,texas,USA,southern-plains,Texas,ERCOT,TX_ERCOT_W,West_South_Central
+p61,ERCOT,ERCOT,ERCOT,West_South_Central,TX,texas,USA,southern-plains,Texas,ERCOT,TX_ERCOT_W,West_South_Central
+p62,ERCOT,ERCOT,ERCOT,West_South_Central,TX,texas,USA,southern-plains,Texas,ERCOT,TX_ERCOT_W,West_South_Central
+p63,ERCOT,ERCOT,ERCOT,West_South_Central,TX,texas,USA,southern-plains,Texas,ERCOT,TX_ERCOT_E,West_South_Central
+p64,ERCOT,ERCOT,ERCOT,West_South_Central,TX,texas,USA,southern-plains,Texas,ERCOT,TX_ERCOT_E,West_South_Central
+p65,ERCOT,ERCOT,ERCOT,West_South_Central,TX,texas,USA,southern-plains,Texas,ERCOT,TX_ERCOT_E,West_South_Central
+p66,MISO,MISO,MISO_South,West_South_Central,TX,eastern,USA,southern-plains,Texas,MISO,TX_MISO,West_South_Central
+p67,ERCOT,ERCOT,ERCOT,West_South_Central,TX,texas,USA,southern-plains,Texas,ERCOT,TX_ERCOT_E,West_South_Central
+p68,MISO,MISO,MISO_North,West_North_Central,MN,eastern,USA,lake-states,Midwest,MISO,MN,West_North_Central
+p69,MISO,MISO,MISO_North,West_North_Central,IA,eastern,USA,corn-belt,Midwest,MISO,IA,West_North_Central
+p70,MISO,MISO,MISO_North,West_North_Central,IA,eastern,USA,corn-belt,Midwest,MISO,IA,West_North_Central
+p71,MISO,MISO,MISO_Central,West_North_Central,MO,eastern,USA,corn-belt,Midwest,MISO,MO,West_North_Central
+p72,MISO,MISO,MISO_Central,West_North_Central,MO,eastern,USA,corn-belt,Midwest,MISO,MO,West_North_Central
+p73,MISO,MISO,MISO_Central,West_North_Central,MO,eastern,USA,corn-belt,Midwest,MISO,MO,West_North_Central
+p74,MISO,MISO,MISO_Central,East_North_Central,MI,eastern,USA,lake-states,Midwest,MISO,MI,East_North_Central
+p75,MISO,MISO,MISO_North,East_North_Central,WI,eastern,USA,lake-states,Midwest,MISO,WI,East_North_Central
+p76,MISO,MISO,MISO_North,East_North_Central,WI,eastern,USA,lake-states,Midwest,MISO,WI,East_North_Central
+p77,MISO,MISO,MISO_North,East_North_Central,WI,eastern,USA,lake-states,Midwest,MISO,WI,East_North_Central
+p78,MISO,MISO,MISO_North,East_North_Central,WI,eastern,USA,lake-states,Midwest,MISO,WI,East_North_Central
+p79,MISO,MISO,MISO_North,East_North_Central,WI,eastern,USA,lake-states,Midwest,MISO,WI,East_North_Central
+p80,PJM,PJM,PJM_West,East_North_Central,IL,eastern,USA,corn-belt,Midwest,PJM,IL_PJM,East_North_Central
+p81,MISO,MISO,MISO_Central,East_North_Central,IL,eastern,USA,corn-belt,Midwest,MISO,IL_MISO,East_North_Central
+p82,MISO,MISO,MISO_Central,East_North_Central,IL,eastern,USA,corn-belt,Midwest,MISO,IL_MISO,East_North_Central
+p83,MISO,MISO,MISO_Central,East_North_Central,IL,eastern,USA,corn-belt,Midwest,MISO,IL_MISO,East_North_Central
+p84,MISO,MISO,MISO_Central,West_North_Central,MO,eastern,USA,corn-belt,Midwest,MISO,MO,West_North_Central
+p85,MISO,MISO,MISO_South,West_South_Central,AR,eastern,USA,delta-states,Delta,MISO,AR,West_South_Central
+p86,MISO,MISO,MISO_South,West_South_Central,LA,eastern,USA,delta-states,Delta,MISO,LA,West_South_Central
+p87,MISO,MISO,MISO_South,East_South_Central,MS,eastern,USA,delta-states,Delta,MISO,MS,East_South_Central
+p88,MISO,MISO,MISO_South,East_South_Central,MS,eastern,USA,delta-states,Delta,MISO,MS,East_South_Central
+p89,SERC_SE,SERTP,SERTP,East_South_Central,AL,eastern,USA,southeast,Southeast,PowerSouth_Energy_Coop,AL,East_South_Central
+p90,SERC_SE,SERTP,SERTP,East_South_Central,AL,eastern,USA,southeast,Southeast,PowerSouth_Energy_Coop,AL,East_South_Central
+p91,SERC_F,FRCC,FRCC,South_Atlantic,FL,eastern,USA,southeast,Florida,Seminole_Electric_Coop_Inc,FL,South_Atlantic
+p92,SERC_C,SERTP,SERTP,East_South_Central,TN,eastern,USA,appalachia,Southeast,Tennessee_Valley_Authority,TN,East_South_Central
+p93,PJM,PJM,PJM_East,East_South_Central,KY,eastern,USA,appalachia,MidAtlantic,PJM,KY,East_South_Central
+p94,SERC_SE,SERTP,SERTP,South_Atlantic,GA,eastern,USA,southeast,Southeast,Southern_Co_Services_Inc,GA,South_Atlantic
+p95,SERC_E,SERTP,SERTP,South_Atlantic,SC,eastern,USA,southeast,Southeast,Duke_Energy_Carolinas_LLC,SC,South_Atlantic
+p96,SERC_E,SERTP,SERTP,South_Atlantic,SC,eastern,USA,southeast,Southeast,Duke_Energy_Carolinas_LLC,SC,South_Atlantic
+p97,SERC_E,SERTP,SERTP,South_Atlantic,NC,eastern,USA,appalachia,Southeast,Duke_Energy_Carolinas_LLC,NC,South_Atlantic
+p98,SERC_E,SERTP,SERTP,South_Atlantic,NC,eastern,USA,appalachia,Southeast,Duke_Energy_Carolinas_LLC,NC,South_Atlantic
+p99,PJM,PJM,PJM_East,South_Atlantic,VA,eastern,USA,appalachia,MidAtlantic,PJM,VA,South_Atlantic
+p100,PJM,PJM,PJM_East,South_Atlantic,VA,eastern,USA,appalachia,MidAtlantic,PJM,VA,South_Atlantic
+p101,SERC_F,FRCC,FRCC,South_Atlantic,FL,eastern,USA,southeast,Florida,Seminole_Electric_Coop_Inc,FL,South_Atlantic
+p102,SERC_F,FRCC,FRCC,South_Atlantic,FL,eastern,USA,southeast,Florida,Seminole_Electric_Coop_Inc,FL,South_Atlantic
+p103,MISO,MISO,MISO_Central,East_North_Central,MI,eastern,USA,lake-states,Midwest,MISO,MI,East_North_Central
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+p105,MISO,MISO,MISO_Central,East_North_Central,IN,eastern,USA,corn-belt,Midwest,MISO,IN,East_North_Central
+p106,MISO,MISO,MISO_Central,East_North_Central,IN,eastern,USA,corn-belt,Midwest,MISO,IN,East_North_Central
+p107,MISO,MISO,MISO_Central,East_North_Central,IN,eastern,USA,corn-belt,Midwest,MISO,IN,East_North_Central
+p108,PJM,PJM,PJM_East,East_South_Central,KY,eastern,USA,appalachia,MidAtlantic,PJM,KY,East_South_Central
+p109,PJM,PJM,PJM_East,East_South_Central,KY,eastern,USA,appalachia,MidAtlantic,PJM,KY,East_South_Central
+p110,PJM,PJM,PJM_East,East_South_Central,KY,eastern,USA,appalachia,MidAtlantic,PJM,KY,East_South_Central
+p111,PJM,PJM,PJM_East,East_North_Central,OH,eastern,USA,corn-belt,MidAtlantic,PJM,OH,East_North_Central
+p112,PJM,PJM,PJM_East,East_North_Central,OH,eastern,USA,corn-belt,MidAtlantic,PJM,OH,East_North_Central
+p113,PJM,PJM,PJM_East,East_North_Central,OH,eastern,USA,corn-belt,MidAtlantic,PJM,OH,East_North_Central
+p114,PJM,PJM,PJM_East,East_North_Central,OH,eastern,USA,corn-belt,MidAtlantic,PJM,OH,East_North_Central
+p115,PJM,PJM,PJM_East,Mid_Atlantic,PA,eastern,USA,northeast,MidAtlantic,PJM,PA,Mid_Atlantic
+p116,PJM,PJM,PJM_East,South_Atlantic,WV,eastern,USA,appalachia,MidAtlantic,PJM,WV,South_Atlantic
+p117,PJM,PJM,PJM_East,South_Atlantic,WV,eastern,USA,appalachia,MidAtlantic,PJM,WV,South_Atlantic
+p118,PJM,PJM,PJM_East,South_Atlantic,VA,eastern,USA,appalachia,MidAtlantic,PJM,VA,South_Atlantic
+p119,PJM,PJM,PJM_East,Mid_Atlantic,PA,eastern,USA,northeast,MidAtlantic,PJM,PA,Mid_Atlantic
+p120,PJM,PJM,PJM_East,Mid_Atlantic,PA,eastern,USA,northeast,MidAtlantic,PJM,PA,Mid_Atlantic
+p121,PJM,PJM,PJM_East,South_Atlantic,MD,eastern,USA,northeast,MidAtlantic,PJM,MD,South_Atlantic
+p122,PJM,PJM,PJM_East,Mid_Atlantic,PA,eastern,USA,northeast,MidAtlantic,PJM,PA,Mid_Atlantic
+p123,PJM,PJM,PJM_East,South_Atlantic,MD,eastern,USA,northeast,MidAtlantic,PJM,MD,South_Atlantic
+p124,PJM,PJM,PJM_East,South_Atlantic,VA,eastern,USA,appalachia,MidAtlantic,PJM,VA,South_Atlantic
+p125,PJM,PJM,PJM_East,South_Atlantic,DE,eastern,USA,northeast,MidAtlantic,PJM,DE,South_Atlantic
+p126,PJM,PJM,PJM_East,Mid_Atlantic,NJ,eastern,USA,northeast,MidAtlantic,PJM,NJ,Mid_Atlantic
+p127,NPCC_NY,NYISO,NYISO,Mid_Atlantic,NY,eastern,USA,northeast,NewYork,NYISO,NY_UP,Mid_Atlantic
+p128,NPCC_NY,NYISO,NYISO,Mid_Atlantic,NY,eastern,USA,northeast,NewYork,NYISO,NY_NYCLI,Mid_Atlantic
+p129,NPCC_NE,ISONE,ISONE,New_England,VT,eastern,USA,northeast,NewEngland,ISONE,VT,New_England
+p130,NPCC_NE,ISONE,ISONE,New_England,NH,eastern,USA,northeast,NewEngland,ISONE,NH,New_England
+p131,NPCC_NE,ISONE,ISONE,New_England,MA,eastern,USA,northeast,NewEngland,ISONE,MA,New_England
+p132,NPCC_NE,ISONE,ISONE,New_England,CT,eastern,USA,northeast,NewEngland,ISONE,CT,New_England
+p133,NPCC_NE,ISONE,ISONE,New_England,RI,eastern,USA,northeast,NewEngland,ISONE,RI,New_England
+p134,NPCC_NE,ISONE,ISONE,New_England,ME,eastern,USA,northeast,NewEngland,ISONE,ME,New_England
diff --git a/inputs/zones/z69/hierarchy_from134.csv b/inputs/zones/z69/hierarchy_from134.csv
index 8a2d12aa..8ab46f5c 100644
--- a/inputs/zones/z69/hierarchy_from134.csv
+++ b/inputs/zones/z69/hierarchy_from134.csv
@@ -1,135 +1,135 @@
-ba,nercr,transreg,transgrp,cendiv,st,interconnect,country,usda_region,h2ptcreg,hurdlereg,aggreg
-p1,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,WA,western,USA,pacific,Northwest,Bonneville_Power_Administration,WA
-p2,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,WA,western,USA,pacific,Northwest,Bonneville_Power_Administration,WA
-p3,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,WA,western,USA,pacific,Northwest,Bonneville_Power_Administration,WA
-p4,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,WA,western,USA,pacific,Northwest,Bonneville_Power_Administration,WA
-p5,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,OR,western,USA,pacific,Northwest,Bonneville_Power_Administration,OR
-p6,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,OR,western,USA,pacific,Northwest,Bonneville_Power_Administration,OR
-p7,WECC_NW,NorthernGrid,NorthernGrid_West,Pacific,OR,western,USA,pacific,Northwest,Bonneville_Power_Administration,OR
-p8,WECC_NW,NorthernGrid,NorthernGrid_South,Pacific,CA,western,USA,pacific,California,PacifiCorp_West,CA_NorthernGrid
-p9,WECC_CA,CAISO,CAISO,Pacific,CA,western,USA,pacific,California,CAISO,CA_N_CAISO
-p10,WECC_CA,CAISO,CAISO,Pacific,CA,western,USA,pacific,California,CAISO,CA_S_CAISO
-p11,WECC_CA,CAISO,CAISO,Pacific,CA,western,USA,pacific,California,CAISO,CA_S_CAISO
-p12,WECC_NW,NorthernGrid,NorthernGrid_South,Mountain,NV,western,USA,mountain,Mountain,Nevada_Power_Co,NV
-p13,WECC_NW,NorthernGrid,NorthernGrid_South,Mountain,NV,western,USA,mountain,Mountain,Nevada_Power_Co,NV
-p14,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,ID,western,USA,mountain,Northwest,Idaho_Power_Co,ID
-p15,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,ID,western,USA,mountain,Northwest,Idaho_Power_Co,ID
-p16,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,ID,western,USA,mountain,Northwest,Idaho_Power_Co,ID
-p17,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,MT,western,USA,mountain,Mountain,Northwestern_Energy,MT_NorthernGrid
-p18,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,MT,western,USA,mountain,Mountain,Northwestern_Energy,MT_NorthernGrid
-p19,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,MT,western,USA,mountain,Mountain,Northwestern_Energy,MT_NorthernGrid
-p20,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,MT,western,USA,mountain,Mountain,Northwestern_Energy,MT_NorthernGrid
-p21,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,WY,western,USA,mountain,Mountain,PacifiCorp_East,WY_NorthernGrid
-p22,WECC_NW,NorthernGrid,NorthernGrid_East,Mountain,WY,western,USA,mountain,Mountain,PacifiCorp_East,WY_NorthernGrid
-p23,WECC_NW,WestConnect,WestConnect_North,Mountain,WY,western,USA,mountain,Mountain,WAPA_Rocky_Mountain_Region,WY_WestConnect
-p24,WECC_NW,WestConnect,WestConnect_North,Mountain,WY,western,USA,mountain,Mountain,WAPA_Rocky_Mountain_Region,WY_WestConnect
-p25,WECC_NW,NorthernGrid,NorthernGrid_South,Mountain,UT,western,USA,mountain,Mountain,PacifiCorp_East,UT
-p26,WECC_NW,NorthernGrid,NorthernGrid_South,Mountain,UT,western,USA,mountain,Mountain,PacifiCorp_East,UT
-p27,WECC_SW,WestConnect,WestConnect_South,Mountain,AZ,western,USA,mountain,Southwest,Arizona_Public_Service_Co,AZ
-p28,WECC_SW,WestConnect,WestConnect_South,Mountain,AZ,western,USA,mountain,Southwest,Arizona_Public_Service_Co,AZ
-p29,WECC_SW,WestConnect,WestConnect_South,Mountain,AZ,western,USA,mountain,Southwest,Arizona_Public_Service_Co,AZ
-p30,WECC_SW,WestConnect,WestConnect_South,Mountain,AZ,western,USA,mountain,Southwest,Arizona_Public_Service_Co,AZ
-p31,WECC_SW,WestConnect,WestConnect_South,Mountain,NM,western,USA,mountain,Southwest,Public_Service_Co_of_New_Mexico,NM_WestConnect
-p32,WECC_NW,WestConnect,WestConnect_North,Mountain,SD,western,USA,northern-plains,Plains,WAPA_Rocky_Mountain_Region,SD_WestConnect
-p33,WECC_NW,WestConnect,WestConnect_North,Mountain,CO,western,USA,mountain,Mountain,Public_Service_Co_of_Colorado,CO
-p34,WECC_NW,WestConnect,WestConnect_North,Mountain,CO,western,USA,mountain,Mountain,Public_Service_Co_of_Colorado,CO
-p35,SPP,SPP,SPP_North,West_North_Central,MT,eastern,USA,mountain,Mountain,SPP,MT_SPP
-p36,SPP,SPP,SPP_North,West_North_Central,ND,eastern,USA,northern-plains,Plains,SPP,ND_SPP
-p37,MISO,MISO,MISO_North,West_North_Central,ND,eastern,USA,northern-plains,Plains,MISO,ND_MISO
-p38,SPP,SPP,SPP_North,West_North_Central,SD,eastern,USA,northern-plains,Plains,SPP,SD_SPP
-p39,SPP,SPP,SPP_North,West_North_Central,NE,eastern,USA,northern-plains,Plains,SPP,NE
-p40,SPP,SPP,SPP_North,West_North_Central,NE,eastern,USA,northern-plains,Plains,SPP,NE
-p41,SPP,SPP,SPP_North,West_North_Central,NE,eastern,USA,northern-plains,Plains,SPP,NE
-p42,MISO,MISO,MISO_North,West_North_Central,MN,eastern,USA,lake-states,Midwest,MISO,MN
-p43,MISO,MISO,MISO_North,West_North_Central,MN,eastern,USA,lake-states,Midwest,MISO,MN
-p44,MISO,MISO,MISO_North,West_North_Central,MN,eastern,USA,lake-states,Midwest,MISO,MN
-p45,MISO,MISO,MISO_North,West_North_Central,IA,eastern,USA,corn-belt,Midwest,MISO,IA
-p46,MISO,MISO,MISO_North,East_North_Central,WI,eastern,USA,lake-states,Midwest,MISO,WI
-p47,SPP,SPP,SPP_South,West_South_Central,NM,eastern,USA,mountain,Southwest,SPP,NM_SPP
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+p90,SERC_SE,SERTP,SERTP,East_South_Central,AL,eastern,USA,southeast,Southeast,PowerSouth_Energy_Coop,AL,East_South_Central
+p91,SERC_SE,SERTP,SERTP,South_Atlantic,FL,eastern,USA,southeast,Florida,Southern_Co_Services_Inc,FL_SERTP,South_Atlantic
+p92,SERC_C,SERTP,SERTP,East_South_Central,TN,eastern,USA,appalachia,Southeast,Tennessee_Valley_Authority,TN,East_South_Central
+p93,SERC_C,SERTP,SERTP,East_South_Central,KY,eastern,USA,appalachia,MidAtlantic,Tennessee_Valley_Authority,KY_SERTP,East_South_Central
+p94,SERC_SE,SERTP,SERTP,South_Atlantic,GA,eastern,USA,southeast,Southeast,Southern_Co_Services_Inc,GA,South_Atlantic
+p95,SERC_E,SERTP,SERTP,South_Atlantic,SC,eastern,USA,southeast,Southeast,South_Carolina_Electric_Gas_Co,SC,South_Atlantic
+p96,SERC_E,SERTP,SERTP,South_Atlantic,SC,eastern,USA,southeast,Southeast,South_Carolina_Electric_Gas_Co,SC,South_Atlantic
+p97,SERC_E,SERTP,SERTP,South_Atlantic,NC,eastern,USA,appalachia,Southeast,Duke_Energy_Carolinas_LLC,NC,South_Atlantic
+p98,SERC_E,SERTP,SERTP,South_Atlantic,NC,eastern,USA,appalachia,Southeast,Duke_Energy_Carolinas_LLC,NC,South_Atlantic
+p99,PJM,PJM,PJM_East,South_Atlantic,VA,eastern,USA,appalachia,MidAtlantic,PJM,VA,South_Atlantic
+p100,PJM,PJM,PJM_East,South_Atlantic,VA,eastern,USA,appalachia,MidAtlantic,PJM,VA,South_Atlantic
+p101,SERC_F,FRCC,FRCC,South_Atlantic,FL,eastern,USA,southeast,Florida,Seminole_Electric_Coop_Inc,FL_FRCC,South_Atlantic
+p102,SERC_F,FRCC,FRCC,South_Atlantic,FL,eastern,USA,southeast,Florida,Seminole_Electric_Coop_Inc,FL_FRCC,South_Atlantic
+p103,MISO,MISO,MISO_Central,East_North_Central,MI,eastern,USA,lake-states,Midwest,MISO,MI_MISO,East_North_Central
+p104,PJM,PJM,PJM_West,East_North_Central,MI,eastern,USA,lake-states,Midwest,PJM,MI_PJM,East_North_Central
+p105,MISO,MISO,MISO_Central,East_North_Central,IN,eastern,USA,corn-belt,Midwest,MISO,IN,East_North_Central
+p106,MISO,MISO,MISO_Central,East_North_Central,IN,eastern,USA,corn-belt,Midwest,MISO,IN,East_North_Central
+p107,MISO,MISO,MISO_Central,East_North_Central,IN,eastern,USA,corn-belt,Midwest,MISO,IN,East_North_Central
+p108,MISO,MISO,MISO_Central,East_South_Central,KY,eastern,USA,appalachia,MidAtlantic,MISO,KY_MISO,East_South_Central
+p109,PJM,PJM,PJM_East,East_South_Central,KY,eastern,USA,appalachia,MidAtlantic,PJM,KY_PJM,East_South_Central
+p110,PJM,PJM,PJM_East,East_South_Central,KY,eastern,USA,appalachia,MidAtlantic,PJM,KY_PJM,East_South_Central
+p111,PJM,PJM,PJM_East,East_North_Central,OH,eastern,USA,corn-belt,MidAtlantic,PJM,OH,East_North_Central
+p112,PJM,PJM,PJM_East,East_North_Central,OH,eastern,USA,corn-belt,MidAtlantic,PJM,OH,East_North_Central
+p113,PJM,PJM,PJM_East,East_North_Central,OH,eastern,USA,corn-belt,MidAtlantic,PJM,OH,East_North_Central
+p114,PJM,PJM,PJM_East,East_North_Central,OH,eastern,USA,corn-belt,MidAtlantic,PJM,OH,East_North_Central
+p115,PJM,PJM,PJM_East,Mid_Atlantic,PA,eastern,USA,northeast,MidAtlantic,PJM,PA,Mid_Atlantic
+p116,PJM,PJM,PJM_East,South_Atlantic,WV,eastern,USA,appalachia,MidAtlantic,PJM,WV,South_Atlantic
+p117,PJM,PJM,PJM_East,South_Atlantic,WV,eastern,USA,appalachia,MidAtlantic,PJM,WV,South_Atlantic
+p118,PJM,PJM,PJM_East,South_Atlantic,VA,eastern,USA,appalachia,MidAtlantic,PJM,VA,South_Atlantic
+p119,PJM,PJM,PJM_East,Mid_Atlantic,PA,eastern,USA,northeast,MidAtlantic,PJM,PA,Mid_Atlantic
+p120,PJM,PJM,PJM_East,Mid_Atlantic,PA,eastern,USA,northeast,MidAtlantic,PJM,PA,Mid_Atlantic
+p121,PJM,PJM,PJM_East,South_Atlantic,MD,eastern,USA,northeast,MidAtlantic,PJM,MD,South_Atlantic
+p122,PJM,PJM,PJM_East,Mid_Atlantic,PA,eastern,USA,northeast,MidAtlantic,PJM,PA,Mid_Atlantic
+p123,PJM,PJM,PJM_East,South_Atlantic,MD,eastern,USA,northeast,MidAtlantic,PJM,MD,South_Atlantic
+p124,PJM,PJM,PJM_East,South_Atlantic,VA,eastern,USA,appalachia,MidAtlantic,PJM,VA,South_Atlantic
+p125,PJM,PJM,PJM_East,South_Atlantic,DE,eastern,USA,northeast,MidAtlantic,PJM,DE,South_Atlantic
+p126,PJM,PJM,PJM_East,Mid_Atlantic,NJ,eastern,USA,northeast,MidAtlantic,PJM,NJ,Mid_Atlantic
+p127,NPCC_NY,NYISO,NYISO,Mid_Atlantic,NY,eastern,USA,northeast,NewYork,NYISO,NY_UP,Mid_Atlantic
+p128,NPCC_NY,NYISO,NYISO,Mid_Atlantic,NY,eastern,USA,northeast,NewYork,NYISO,NY_NYCLI,Mid_Atlantic
+p129,NPCC_NE,ISONE,ISONE,New_England,VT,eastern,USA,northeast,NewEngland,ISONE,VT,New_England
+p130,NPCC_NE,ISONE,ISONE,New_England,NH,eastern,USA,northeast,NewEngland,ISONE,NH,New_England
+p131,NPCC_NE,ISONE,ISONE,New_England,MA,eastern,USA,northeast,NewEngland,ISONE,MA,New_England
+p132,NPCC_NE,ISONE,ISONE,New_England,CT,eastern,USA,northeast,NewEngland,ISONE,CT,New_England
+p133,NPCC_NE,ISONE,ISONE,New_England,RI,eastern,USA,northeast,NewEngland,ISONE,RI,New_England
+p134,NPCC_NE,ISONE,ISONE,New_England,ME,eastern,USA,northeast,NewEngland,ISONE,ME,New_England
diff --git a/reeds/core/setup/b_inputs.gms b/reeds/core/setup/b_inputs.gms
index b473412b..c3464b78 100644
--- a/reeds/core/setup/b_inputs.gms
+++ b/reeds/core/setup/b_inputs.gms
@@ -959,7 +959,7 @@ rsc_agg(i,ii)$[ban(i) or ban(ii)] = no ;
 *     --- Region hierarchy ---
 *======================================
 
-set hierarchy(r,nercr,transreg,transgrp,cendiv,st,interconnect,country,usda_region,h2ptcreg,hurdlereg,ccreg) "hierarchy of various regional definitions"
+set hierarchy(r,nercr,transreg,transgrp,cendiv,st,interconnect,country,usda_region,h2ptcreg,hurdlereg,gasreg,ccreg) "hierarchy of various regional definitions"
 /
 $offlisting
 $ondelim
@@ -984,17 +984,17 @@ set r_itlgrp(r,itlgrp)
     r_ccreg(r,ccreg)
 ;
 
-r_nercr(r,nercr)                      $sum{(      transreg,transgrp,cendiv,st,interconnect,country,usda_region,h2ptcreg,hurdlereg,ccreg) $hierarchy(r,nercr,transreg,transgrp,cendiv,st,interconnect,country,usda_region,h2ptcreg,hurdlereg,ccreg),1} = yes ;
-r_transreg(r,transreg)                $sum{(nercr,         transgrp,cendiv,st,interconnect,country,usda_region,h2ptcreg,hurdlereg,ccreg) $hierarchy(r,nercr,transreg,transgrp,cendiv,st,interconnect,country,usda_region,h2ptcreg,hurdlereg,ccreg),1} = yes ;
-r_transgrp(r,transgrp)                $sum{(nercr,transreg,         cendiv,st,interconnect,country,usda_region,h2ptcreg,hurdlereg,ccreg) $hierarchy(r,nercr,transreg,transgrp,cendiv,st,interconnect,country,usda_region,h2ptcreg,hurdlereg,ccreg),1} = yes ;
-r_cendiv(r,cendiv)                    $sum{(nercr,transreg,transgrp,       st,interconnect,country,usda_region,h2ptcreg,hurdlereg,ccreg) $hierarchy(r,nercr,transreg,transgrp,cendiv,st,interconnect,country,usda_region,h2ptcreg,hurdlereg,ccreg),1} = yes ;
-r_st(r,st)                            $sum{(nercr,transreg,transgrp,cendiv,   interconnect,country,usda_region,h2ptcreg,hurdlereg,ccreg) $hierarchy(r,nercr,transreg,transgrp,cendiv,st,interconnect,country,usda_region,h2ptcreg,hurdlereg,ccreg),1} = yes ;
-r_interconnect(r,interconnect)        $sum{(nercr,transreg,transgrp,cendiv,st,             country,usda_region,h2ptcreg,hurdlereg,ccreg) $hierarchy(r,nercr,transreg,transgrp,cendiv,st,interconnect,country,usda_region,h2ptcreg,hurdlereg,ccreg),1} = yes ;
-r_country(r,country)                  $sum{(nercr,transreg,transgrp,cendiv,st,interconnect,        usda_region,h2ptcreg,hurdlereg,ccreg) $hierarchy(r,nercr,transreg,transgrp,cendiv,st,interconnect,country,usda_region,h2ptcreg,hurdlereg,ccreg),1} = yes ;
-r_usda(r,usda_region)                 $sum{(nercr,transreg,transgrp,cendiv,st,interconnect,country,            h2ptcreg,hurdlereg,ccreg) $hierarchy(r,nercr,transreg,transgrp,cendiv,st,interconnect,country,usda_region,h2ptcreg,hurdlereg,ccreg),1} = yes ;
-r_h2ptcreg(r,h2ptcreg)                $sum{(nercr,transreg,transgrp,cendiv,st,interconnect,country,usda_region,         hurdlereg,ccreg) $hierarchy(r,nercr,transreg,transgrp,cendiv,st,interconnect,country,usda_region,h2ptcreg,hurdlereg,ccreg),1} = yes ;
-r_hurdlereg(r,hurdlereg)              $sum{(nercr,transreg,transgrp,cendiv,st,interconnect,country,usda_region,h2ptcreg,          ccreg) $hierarchy(r,nercr,transreg,transgrp,cendiv,st,interconnect,country,usda_region,h2ptcreg,hurdlereg,ccreg),1} = yes ;
-r_ccreg(r,ccreg)                      $sum{(nercr,transreg,transgrp,cendiv,st,interconnect,country,usda_region,h2ptcreg,hurdlereg      ) $hierarchy(r,nercr,transreg,transgrp,cendiv,st,interconnect,country,usda_region,h2ptcreg,hurdlereg,ccreg),1} = yes ;
+r_nercr(r,nercr)                      $sum{(      transreg,transgrp,cendiv,st,interconnect,country,usda_region,h2ptcreg,hurdlereg,gasreg,ccreg) $hierarchy(r,nercr,transreg,transgrp,cendiv,st,interconnect,country,usda_region,h2ptcreg,hurdlereg,gasreg,ccreg),1} = yes ;
+r_transreg(r,transreg)                $sum{(nercr,         transgrp,cendiv,st,interconnect,country,usda_region,h2ptcreg,hurdlereg,gasreg,ccreg) $hierarchy(r,nercr,transreg,transgrp,cendiv,st,interconnect,country,usda_region,h2ptcreg,hurdlereg,gasreg,ccreg),1} = yes ;
+r_transgrp(r,transgrp)                $sum{(nercr,transreg,         cendiv,st,interconnect,country,usda_region,h2ptcreg,hurdlereg,gasreg,ccreg) $hierarchy(r,nercr,transreg,transgrp,cendiv,st,interconnect,country,usda_region,h2ptcreg,hurdlereg,gasreg,ccreg),1} = yes ;
+r_cendiv(r,cendiv)                    $sum{(nercr,transreg,transgrp,       st,interconnect,country,usda_region,h2ptcreg,hurdlereg,gasreg,ccreg) $hierarchy(r,nercr,transreg,transgrp,cendiv,st,interconnect,country,usda_region,h2ptcreg,hurdlereg,gasreg,ccreg),1} = yes ;
+r_st(r,st)                            $sum{(nercr,transreg,transgrp,cendiv,   interconnect,country,usda_region,h2ptcreg,hurdlereg,gasreg,ccreg) $hierarchy(r,nercr,transreg,transgrp,cendiv,st,interconnect,country,usda_region,h2ptcreg,hurdlereg,gasreg,ccreg),1} = yes ;
+r_interconnect(r,interconnect)        $sum{(nercr,transreg,transgrp,cendiv,st,             country,usda_region,h2ptcreg,hurdlereg,gasreg,ccreg) $hierarchy(r,nercr,transreg,transgrp,cendiv,st,interconnect,country,usda_region,h2ptcreg,hurdlereg,gasreg,ccreg),1} = yes ;
+r_country(r,country)                  $sum{(nercr,transreg,transgrp,cendiv,st,interconnect,        usda_region,h2ptcreg,hurdlereg,gasreg,ccreg) $hierarchy(r,nercr,transreg,transgrp,cendiv,st,interconnect,country,usda_region,h2ptcreg,hurdlereg,gasreg,ccreg),1} = yes ;
+r_usda(r,usda_region)                 $sum{(nercr,transreg,transgrp,cendiv,st,interconnect,country,            h2ptcreg,hurdlereg,gasreg,ccreg) $hierarchy(r,nercr,transreg,transgrp,cendiv,st,interconnect,country,usda_region,h2ptcreg,hurdlereg,gasreg,ccreg),1} = yes ;
+r_h2ptcreg(r,h2ptcreg)                $sum{(nercr,transreg,transgrp,cendiv,st,interconnect,country,usda_region,         hurdlereg,gasreg,ccreg) $hierarchy(r,nercr,transreg,transgrp,cendiv,st,interconnect,country,usda_region,h2ptcreg,hurdlereg,gasreg,ccreg),1} = yes ;
+r_hurdlereg(r,hurdlereg)              $sum{(nercr,transreg,transgrp,cendiv,st,interconnect,country,usda_region,h2ptcreg,          gasreg,ccreg) $hierarchy(r,nercr,transreg,transgrp,cendiv,st,interconnect,country,usda_region,h2ptcreg,hurdlereg,gasreg,ccreg),1} = yes ;
+r_ccreg(r,ccreg)                      $sum{(nercr,transreg,transgrp,cendiv,st,interconnect,country,usda_region,h2ptcreg,hurdlereg,gasreg      ) $hierarchy(r,nercr,transreg,transgrp,cendiv,st,interconnect,country,usda_region,h2ptcreg,hurdlereg,gasreg,ccreg),1} = yes ;
 
 set r_itlgrp(r,itlgrp) "mapping of r to itlgrp"
 /
@@ -6131,6 +6131,8 @@ Parameter
 * Fossil gas supply curve
     gasadder_cd(cendiv,t,allh)             "--$/MMbtu-- adder for NG census division"
     szn_adj_gas(allh)                      "--fraction-- seasonal adjustment for gas prices"
+    gasprice_adj_r(r,allh,allt)           "--fraction-- adjustment for zonal gas prices"
+    gasprice_adj_cendiv(cendiv,allh,allt) "--fraction-- adjustment for cendiv-level gas prices"
 ;
 
 * Initialize some parameters
diff --git a/reeds/core/setup/d_objective.gms b/reeds/core/setup/d_objective.gms
index 38a5b0b3..ab21f20f 100644
--- a/reeds/core/setup/d_objective.gms
+++ b/reeds/core/setup/d_objective.gms
@@ -240,27 +240,27 @@ eq_Objfn_op(t)$tmodel(t)..
 *Sw_GasCurve = 2 (static natural gas prices)
 *first - gas consumed for electricity generation
               + sum{(i,v,r,h)$[valgen(i,v,r,t)$gas(i)$heat_rate(i,v,r,t)$(Sw_GasCurve = 2)],
-                   hours(h) * heat_rate(i,v,r,t) * fuel_price(i,r,t) * GEN(i,v,r,h,t) }
+                   hours(h) * heat_rate(i,v,r,t) * fuel_price(i,r,t) * GEN(i,v,r,h,t) * gasprice_adj_r(r,h,t) }
 
 *second - gas consumed by gas-powered DAC
               + sum{(v,r,h)$[valcap("dac_gas",v,r,t)$(Sw_GasCurve = 2)],
                    hours(h) * dac_gas_cons_rate("dac_gas",v,t) * PRODUCE("DAC","dac_gas",v,r,h,t) }$Sw_DAC_Gas
 
 *Sw_GasCurve = 0 (census division supply curves natural gas prices)
-              + sum{(cendiv,gb), sum{h, hours(h) * GASUSED(cendiv,gb,h,t) }
+              + sum{(cendiv,gb), sum{h, hours(h) * GASUSED(cendiv,gb,h,t) * gasprice_adj_cendiv(cendiv,h,t) }
                    * gasprice(cendiv,gb,t)
                    }$(Sw_GasCurve = 0)
 
 *Sw_GasCurve = 3 (national supply curve for natural gas prices with census division multipliers)
               + sum{(h,cendiv,gb), hours(h) * GASUSED(cendiv,gb,h,t)
-                   * gasadder_cd(cendiv,t,h) + gasprice_nat_bin(gb,t)
+                   * gasadder_cd(cendiv,t,h) * gasprice_adj_cendiv(cendiv,h,t) + gasprice_nat_bin(gb,t)
                    }$(Sw_GasCurve = 3)
 
 *Sw_GasCurve = 1 (national and census division supply curves for natural gas prices)
 *first - anticipated costs of gas consumption given last year's amount
               + (sum{(i,r,v,cendiv,h)$[valgen(i,v,r,t)$gas(i)],
-                   gasmultterm(cendiv,t) * szn_adj_gas(h) * cendiv_weights(r,cendiv) *
-                   hours(h) * heat_rate(i,v,r,t) * GEN(i,v,r,h,t) }
+                   gasmultterm(cendiv,t) * cendiv_weights(r,cendiv) *
+                   hours(h) * heat_rate(i,v,r,t) * GEN(i,v,r,h,t) * gasprice_adj_r(r,h,t) }
 
 *second - adjustments based on changes from last year's consumption at the regional and national level
               + sum{(fuelbin,cendiv),
diff --git a/reeds/core/solve/2_temporal_params.gms b/reeds/core/solve/2_temporal_params.gms
index 5c0c7ab5..89db6e2c 100644
--- a/reeds/core/solve/2_temporal_params.gms
+++ b/reeds/core/solve/2_temporal_params.gms
@@ -879,15 +879,42 @@ peakdem_static_h(r,h,t) = peak_h(r,h,t) * (1 - sum{flex_type, flex_demand_frac(f
 gasadder_cd(cendiv,t,allh) = 0 ;
 gasadder_cd(cendiv,t,h) = (gasprice_ref(cendiv,t) - gasprice_nat(t))/2 ;
 
-*winter gas gets marked up
-gasadder_cd(cendiv,t,h) =
-    gasadder_cd(cendiv,t,h)
-    + gasprice_ref_frac_adder * frac_h_quarter_weights(h,"wint") * gasprice_ref(cendiv,t) ;
+* Written by hourly_writetimeseries.py
+$onempty
+parameter gasprice_adj_r(r,allh,allt) "--unitless-- daily gas price multipliers by region, timeslice, and year"
+/ 
+$offlisting
+$ondelim
+$include inputs_case%ds%%temporal_inputs%%ds%daily_gasprice_multipliers_r.csv
+$offdelim
+$onlisting
+/ ;
+$offempty
 
+$onempty
+parameter gasprice_adj_cendiv(cendiv,allh,allt) "--unitless-- daily gas price multipliers by region, timeslice, and year"
+/ 
+$offlisting
+$ondelim
+$include inputs_case%ds%%temporal_inputs%%ds%daily_gasprice_multipliers_cendiv.csv
+$offdelim
+$onlisting
+/ ;
+$offempty
+
+*winter gas gets marked up if GSw_GasPriceAdjMethod = 0
 szn_adj_gas(allh) = 0 ;
 szn_adj_gas(h) = 1 ;
 szn_adj_gas(h)$frac_h_quarter_weights(h,"wint") =
     szn_adj_gas(h) + frac_h_quarter_weights(h,"wint") * szn_adj_gas_winter ;
+* Renormalize so hour-weighted average of szn_adj_gas is 1
+scalar szn_adj_gas_avg "--unitless-- hour-weighted average of natural gas seasonal adjustment" ;
+szn_adj_gas_avg = sum{h, szn_adj_gas(h) * hours(h) } / sum{h, hours(h) } ;
+szn_adj_gas(h) = szn_adj_gas(h) / szn_adj_gas_avg ;
+
+* If GSw_GasPriceAdjMethod = 0, apply the uniform winter gas markup instead of daily adjustments
+gasprice_adj_r(r,h,t)$(Sw_GasPriceAdjMethod = 0) = szn_adj_gas(h) ;
+gasprice_adj_cendiv(cendiv,h,t)$(Sw_GasPriceAdjMethod = 0) = szn_adj_gas(h) ;
 
 
 *=============================================
@@ -906,6 +933,8 @@ load_exog_static(r,h,t)$load_exog_static(r,h,t) = round(load_exog_static(r,h,t),
 minloadfrac(r,i,h)$minloadfrac(r,i,h) = round(minloadfrac(r,i,h),3) ;
 numdays(szn)$numdays(szn) = round(numdays(szn),3) ;
 szn_adj_gas(h)$szn_adj_gas(h) = round(szn_adj_gas(h), 3) ;
+gasprice_adj_r(r,h,t)$gasprice_adj_r(r,h,t) = round(gasprice_adj_r(r,h,t), 3) ;
+gasprice_adj_cendiv(cendiv,h,t)$gasprice_adj_cendiv(cendiv,h,t) = round(gasprice_adj_cendiv(cendiv,h,t), 3) ;
 cap_hyd_szn_adj(i,szn,r)$cap_hyd_szn_adj(i,szn,r) = round(cap_hyd_szn_adj(i,szn,r),3) ;
 peakdem_static_ccseason(r,ccseason,t)$peakdem_static_ccseason(r,ccseason,t) = round(peakdem_static_ccseason(r,ccseason,t),2) ;
 seas_cap_frac_delta(i,v,r,szn,t)$seas_cap_frac_delta(i,v,r,szn,t) = round(seas_cap_frac_delta(i,v,r,szn,t),3) ;
diff --git a/reeds/core/solve/6_data_dump.gms b/reeds/core/solve/6_data_dump.gms
index 5e804c1d..adcd1910 100644
--- a/reeds/core/solve/6_data_dump.gms
+++ b/reeds/core/solve/6_data_dump.gms
@@ -194,19 +194,18 @@ repgasquant(cendiv,t)$[(Sw_GasCurve = 1 or Sw_GasCurve = 2)$tcur(t)] =
        } ;
 
 repgasprice(cendiv,t)$[(Sw_GasCurve = 0)$tcur(t)] =
-    smax{gb$[sum{h, GASUSED.l(cendiv,gb,h,t) }], gasprice(cendiv,gb,t) } ;
+    smax{gb$[sum{h, GASUSED.l(cendiv,gb,h,t) * gasprice_adj_cendiv(cendiv,h,t)}], gasprice(cendiv,gb,t) } ;
 
 repgasprice(cendiv,t)$[(Sw_GasCurve = 2)$tcur(t)$repgasquant(cendiv,t)] =
     sum{(i,v,r,h)$[r_cendiv(r,cendiv)$valgen(i,v,r,t)$gas(i)$heat_rate(i,v,r,t)],
-          hours(h)*heat_rate(i,v,r,t)*fuel_price(i,r,t)*GEN.l(i,v,r,h,t)
+          hours(h)*heat_rate(i,v,r,t)*fuel_price(i,r,t)*GEN.l(i,v,r,h,t)*gasprice_adj_r(r,h,t)
        } / (repgasquant(cendiv,t)) ;
 
 repgasprice_r(r,t)$[(Sw_GasCurve = 0 or Sw_GasCurve = 2)$tcur(t)] = sum{cendiv$r_cendiv(r,cendiv), repgasprice(cendiv,t) } ;
 
 repgasprice_r(r,t)$[(Sw_GasCurve = 1)$tcur(t)] =
               ( sum{(h,cendiv),
-                   gasmultterm(cendiv,t) * szn_adj_gas(h) * cendiv_weights(r,cendiv) *
-                   hours(h) } / sum{h, hours(h) }
+                   gasmultterm(cendiv,t) * cendiv_weights(r,cendiv) * hours(h) * gasprice_adj_cendiv(cendiv,h,t)} / sum{h, hours(h) }
 
               + smax((fuelbin,cendiv)$[VGASBINQ_REGIONAL.l(fuelbin,cendiv,t)$r_cendiv(r,cendiv)], gasbinp_regional(fuelbin,cendiv,t) )
 
diff --git a/reeds/core/terminus/report.gms b/reeds/core/terminus/report.gms
index bb729367..6b7e9146 100644
--- a/reeds/core/terminus/report.gms
+++ b/reeds/core/terminus/report.gms
@@ -529,19 +529,17 @@ repgasquant_nat(t)$tmodel_new(t) = sum{cendiv, repgasquant(cendiv,t) } ;
 *for reported gasprice (not that used to compute system costs)
 *scale back to $ / mmbtu
 repgasprice(cendiv,t)$[(Sw_GasCurve = 0)$tmodel_new(t)$repgasquant(cendiv,t)] =
-    smax{gb$[sum{h, GASUSED.l(cendiv,gb,h,t) }], gasprice(cendiv,gb,t) } / gas_scale ;
+    smax{gb$[sum{h, GASUSED.l(cendiv,gb,h,t) * gasprice_adj_cendiv(cendiv,h,t)}], gasprice(cendiv,gb,t) } / gas_scale ;
 
 repgasprice(cendiv,t)$[(Sw_GasCurve = 2)$tmodel_new(t)$repgasquant(cendiv,t)] =
     sum{(i,v,r,h)$[r_cendiv(r,cendiv)$valgen(i,v,r,t)$gas(i)$heat_rate(i,v,r,t)],
-          hours(h)*heat_rate(i,v,r,t)*fuel_price(i,r,t)*GEN.l(i,v,r,h,t)
-       } / (repgasquant(cendiv,t) * 1e9) ;
+          hours(h)*heat_rate(i,v,r,t)*fuel_price(i,r,t)*GEN.l(i,v,r,h,t)*gasprice_adj_r(r,h,t)} / (repgasquant(cendiv,t) * 1e9) ;
 
 repgasprice_r(r,t)$[(Sw_GasCurve = 0 or Sw_GasCurve = 2)$tmodel_new(t)] = sum{cendiv$r_cendiv(r,cendiv), repgasprice(cendiv,t) } ;
 
 repgasprice_r(r,t)$[(Sw_GasCurve = 1)$tmodel_new(t)] =
               ( sum{(h,cendiv),
-                   gasmultterm(cendiv,t) * szn_adj_gas(h) * cendiv_weights(r,cendiv) *
-                   hours(h) } / sum{h, hours(h) }
+                   gasmultterm(cendiv,t) * cendiv_weights(r,cendiv) * hours(h) * gasprice_adj_cendiv(cendiv,h,t)} / sum{h, hours(h) }
 
               + smax((fuelbin,cendiv)$[VGASBINQ_REGIONAL.l(fuelbin,cendiv,t)$r_cendiv(r,cendiv)], gasbinp_regional(fuelbin,cendiv,t) )
 
@@ -571,21 +569,21 @@ gascost_cendiv(cendiv,t)$tmodel_new(t) =
 *cost of natural gas for Sw_GasCurve = 2 (static natural gas prices)
               + sum{(i,v,r,h)$[r_cendiv(r,cendiv)$valgen(i,v,r,t)$gas(i)$heat_rate(i,v,r,t)
                               $[not bio(i)]$[not cofire(i)]$[Sw_GasCurve = 2]],
-                   hours(h) * heat_rate(i,v,r,t) * fuel_price(i,r,t) * GEN.l(i,v,r,h,t) }
+                   hours(h) * heat_rate(i,v,r,t) * fuel_price(i,r,t) * GEN.l(i,v,r,h,t) * gasprice_adj_r(r,h,t) }
 
 *cost of natural gas for Sw_GasCurve = 0 (census division supply curves natural gas prices)
-              + sum{gb, sum{h,hours(h) * GASUSED.l(cendiv,gb,h,t) } * gasprice(cendiv,gb,t)
+              + sum{gb, sum{h,hours(h) * GASUSED.l(cendiv,gb,h,t) * gasprice_adj_cendiv(cendiv,h,t) } * gasprice(cendiv,gb,t)
                    }$[Sw_GasCurve = 0]
 
 *cost of natural gas for Sw_GasCurve = 3 (national supply curve for natural gas prices with census division multipliers)
               + sum{(h,gb), hours(h) * GASUSED.l(cendiv,gb,h,t)
-                   * gasadder_cd(cendiv,t,h) + gasprice_nat_bin(gb,t)
+                   * gasadder_cd(cendiv,t,h) * gasprice_adj_cendiv(cendiv,h,t) + gasprice_nat_bin(gb,t)
                    }$[Sw_GasCurve = 3]
 *cost of natural gas for Sw_GasCurve = 1 (national and census division supply curves for natural gas prices)
 *first - anticipated costs of gas consumption given last year's amount
               + (sum{(i,v,r,h)$[valgen(i,v,r,t)$gas(i)],
-                   gasmultterm(cendiv,t) * szn_adj_gas(h) * cendiv_weights(r,cendiv) *
-                   hours(h) * heat_rate(i,v,r,t) * GEN.l(i,v,r,h,t) }
+                   gasmultterm(cendiv,t) * cendiv_weights(r,cendiv) *
+                   hours(h) * heat_rate(i,v,r,t) * GEN.l(i,v,r,h,t) * gasprice_adj_r(r,h,t) }
 *second - adjustments based on changes from last year's consumption at the regional and national level
               + sum{(fuelbin),
                    gasbinp_regional(fuelbin,cendiv,t) * VGASBINQ_REGIONAL.l(fuelbin,cendiv,t) }
diff --git a/reeds/input_processing/copy_files.py b/reeds/input_processing/copy_files.py
index 642d2ebc..f7e013ab 100644
--- a/reeds/input_processing/copy_files.py
+++ b/reeds/input_processing/copy_files.py
@@ -384,6 +384,7 @@ def get_regions_and_agglevel(
             'transgrp': 'sub-FERC-1000 region',
             'transreg': 'Transmission Planning Regions from FERC Order 1000',
             'usda_region': 'biomass supply curve region',
+            'gasreg': 'gas price region (for applying daily temperature-based price adjustments)',
         }
         for level, comment in comments.items():
             df = pd.Series(hier_sub[level].unique())
diff --git a/reeds/input_processing/fuelcostprep.py b/reeds/input_processing/fuelcostprep.py
index 51f4b605..ba66aad6 100644
--- a/reeds/input_processing/fuelcostprep.py
+++ b/reeds/input_processing/fuelcostprep.py
@@ -13,6 +13,7 @@
 ### ===========================================================================
 
 import pandas as pd
+import numpy as np
 import os
 import sys
 import argparse
@@ -20,6 +21,407 @@
 from pathlib import Path
 sys.path.append(str(Path(__file__).parent.parent.parent))
 import reeds
+
+
+def calculate_region_aggregion_population_weights(
+    inputs_case: str,
+    region_level: str,
+    aggregion_level: str,
+) -> pd.Series:
+    """
+    For a given region level and aggregated region (aggregion)
+    level, calculate each region's share of its corresponding
+    aggregion's total population.
+    
+    
+    Args:
+        inputs_case: Path to the inputs case directory.
+        region_level: Region level (example: 'state')
+        aggregion_level: Aggregated region level
+            (example: 'cendiv')
+
+    Returns:
+        pd.Series
+    """
+    # Get county populations
+    county_populations = reeds.io.get_county_populations()
+    county_populations = county_populations.rename(
+        columns={'value': 'population'}
+    )
+
+    # Get county-to-region mapping
+    county2zone = reeds.io.get_county2zone(
+        os.path.dirname(inputs_case),
+        as_map=False
+    )
+    county2zone['FIPS'] = (
+        'p' + county2zone['FIPS'].astype(str).str.zfill(5)
+    )
+    state_groups = reeds.io.get_state_groups()
+    county2zone = county2zone.merge(
+        state_groups,
+        left_on='state',
+        right_on='st'
+    )
+    county_region_map = county2zone.set_index('FIPS')[region_level]
+
+    # Calculate regional populations
+    county_populations[region_level] = (
+        county_populations['FIPS'].map(county_region_map)
+    )
+    region_populations = (
+        county_populations.groupby(region_level, as_index=False)
+        ['population']
+        .sum()
+    )
+
+    # Calculate each region's percentage of aggregion population
+    region2aggregion = dict(zip(
+        county2zone[region_level],
+        county2zone[aggregion_level]
+    ))
+    region_populations[aggregion_level] = (
+        region_populations[region_level].map(region2aggregion)
+    )
+    region_populations['weight'] = (
+        region_populations['population']
+        / (
+            region_populations.groupby(aggregion_level)
+            ['population']
+            .transform('sum')
+        )
+    )
+    region_aggregion_weights = (
+        region_populations.set_index(region_level)['weight']
+    )
+
+    return region_aggregion_weights
+
+def calculate_historical_daily_state_degree_days(
+    inputs_case: str
+) -> tuple[pd.DataFrame, pd.DataFrame]:
+    """
+    Calculate daily historical heating and cooling degree days for each state
+    and each weather year (based on the GSw_HourlyWeatherYears switch) using
+    hourly state-level temperature data.
+
+    Args:
+        inputs_case: Path to the inputs case directory.
+
+    Returns:
+        (pd.DataFrame, pd.DataFrame)
+    """
+    # Get hourly state-level temperatures for the given weather year(s)
+    sw = reeds.io.get_switches(inputs_case)
+    weather_years = [int(y) for y in sw.GSw_HourlyWeatherYears.split('_')]
+    temp_hourly = reeds.io.get_temperatures(inputs_case, subset_years=False)
+    temp_hourly = temp_hourly.loc[temp_hourly.index.year.isin(weather_years)]
+
+    # Get baseline temperature for calculating degree days
+    scalars = reeds.io.get_scalars(inputs_case)
+    base_temp = scalars['degree_days_base_temperature']
+
+    # Calculate each state's average temperature for each day
+    temp_daily = temp_hourly.resample('D').agg(['min', 'max'])
+    avg_temp_daily = (
+        temp_daily.xs('min', axis=1, level=1)
+        + temp_daily.xs('max', axis=1, level=1)
+    ) / 2
+
+    # Take differences between baseline and average temperatures
+    hdd_daily = (base_temp - avg_temp_daily).clip(lower=0)
+    cdd_daily = (avg_temp_daily - base_temp).clip(lower=0)
+
+    return hdd_daily, cdd_daily
+
+def aggregate_state_degree_days_to_gasreg(
+    state_degree_days: pd.DataFrame,
+    state_weights: pd.Series
+) -> pd.DataFrame:
+    """
+    Aggregate state-level degree days to the gasreg level via
+    population-weighted average.
+
+    Args:
+        historical_daily_state_degree_days: Daily historical
+            state-level degree days.
+        state_weights: The percentage of each state's share of
+            gasreg population.
+        st2gasreg: State-to-gasreg mapping.
+
+    Returns:
+        pd.DataFrame
+    """
+    # Get state-to-gasreg mapping
+    state_groups = reeds.io.get_state_groups()
+    st2gasreg = state_groups.set_index('st')['gasreg']
+
+    # Calculate weighted average
+    gasreg_degree_days = (
+        (state_degree_days * state_weights)
+        .transpose()
+        .rename(st2gasreg)
+        .groupby(level=0)
+        .sum()
+        .transpose()
+    )
+    return gasreg_degree_days
+
+def rescale_historical_daily_degree_days_to_projected_annuals(
+    historical_daily_degree_days: pd.DataFrame,
+    projected_annual_degree_days: pd.DataFrame
+) -> pd.DataFrame:
+    """
+    Rescale daily, historical degree days so that they match
+    annual degree day projections. This is used to estimate
+    daily degree day projections for model solve years.
+
+    Args:
+        historical_daily_degree_days: Daily historical degree days.
+        projected_annual_degree_days: Annual degree day projections.
+
+    Returns:
+        pd.DataFrame
+    """
+    # Normalize the daily degree day profile annually to get daily
+    # shapes for each historical year
+    historical_degree_day_shapes = (
+        historical_daily_degree_days.div(
+            historical_daily_degree_days.groupby(
+                historical_daily_degree_days.index.year
+            )
+            .transform('sum')
+        )
+        .reset_index()
+    )
+
+    # Combine the historical daily normalized values and projected
+    # annual degree day magnitudes via cartesian product to line
+    # them up row-by-row for each region
+    projected_daily_degree_days = (
+        pd.merge(
+            historical_degree_day_shapes,
+            projected_annual_degree_days,
+            how='cross',
+            suffixes=('_shape', '_magnitude')
+        )
+        .set_index(['t', 'timestamp'])
+        .rename_axis(['year', 'datetime'])
+        .sort_index()
+    )
+
+    # For each region, multiply the daily normalized value by the
+    # annual projection to calculate a degree day projection for
+    # each day
+    regions = (
+        projected_annual_degree_days
+        .drop(columns='t')
+        .columns
+        .tolist()
+    )
+    for region in regions:
+        projected_daily_degree_days[region] = (
+            projected_daily_degree_days[f"{region}_shape"]
+            * projected_daily_degree_days[f"{region}_magnitude"]
+        )
+        projected_daily_degree_days = (
+            projected_daily_degree_days.drop(
+                columns=[f"{region}_shape", f"{region}_magnitude"]
+            )
+        )
+    
+    return projected_daily_degree_days
+
+def calculate_daily_gasreg_degree_days(
+    inputs_case: str,
+) -> tuple[pd.DataFrame, pd.DataFrame]:
+    """
+    Calculate daily gasreg-level heating and cooling degree days.
+    This is done by calculating historical daily state-level degree
+    days for the given weather year(s), aggregating them to the
+    gasreg level via population-weighted average, and then rescaling
+    the historical daily degree days to match projected annual
+    degree days (corresponding to model solve years) for each gasreg.
+
+    Args:
+        inputs_case: Path to the inputs case directory.
+
+    Returns:
+        (pd.DataFrame, pd.DataFrame)
+    """
+    # Calculate population-based state-gasreg weights for
+    # calculating population-weighted gasreg-level degree days
+    state_gasreg_weights = calculate_region_aggregion_population_weights(
+        inputs_case,
+        region_level='state',
+        aggregion_level='gasreg'
+    )
+
+    # Calculate historical state-level daily HDDs and CDDs
+    historical_hdd_daily_st, historical_cdd_daily_st = (
+        calculate_historical_daily_state_degree_days(inputs_case)
+    )
+
+    # Aggregate historical daily state-level degree days to
+    # the gasreg level via population-weighted average
+    historical_hdd_daily_gasreg = aggregate_state_degree_days_to_gasreg(
+        historical_hdd_daily_st,
+        state_gasreg_weights
+    )
+    historical_cdd_daily_gasreg = aggregate_state_degree_days_to_gasreg(
+        historical_cdd_daily_st,
+        state_gasreg_weights
+    )
+
+    # Get gasreg-level annual HDD/CDD projections
+    # for the model solve years
+    solveyears = reeds.io.get_years(os.path.dirname(inputs_case))
+    annual_degree_days_gasreg = pd.read_csv(
+        os.path.join(inputs_case, 'gasreg_degree_days.csv')
+    )
+    annual_degree_days_gasreg = (
+        annual_degree_days_gasreg
+        .loc[annual_degree_days_gasreg['t'].isin(solveyears)]
+    )
+    annual_hdd_gasreg = (
+        annual_degree_days_gasreg
+        .loc[annual_degree_days_gasreg.ddtype == 'HDD']
+        .drop(columns='ddtype')
+    )
+    annual_cdd_gasreg = (
+        annual_degree_days_gasreg
+        .loc[annual_degree_days_gasreg.ddtype == 'CDD']
+        .drop(columns='ddtype')
+    )
+
+    # Apply annual HDD/CDD projections to historical daily degree day shapes to
+    # estimate daily gasreg-level HDD/CDD projections for each model solve year
+    hdd_daily_gasreg = (
+        rescale_historical_daily_degree_days_to_projected_annuals(
+            historical_hdd_daily_gasreg,
+            annual_hdd_gasreg
+        )
+    )
+    cdd_daily_gasreg = (
+        rescale_historical_daily_degree_days_to_projected_annuals(
+            historical_cdd_daily_gasreg,
+            annual_cdd_gasreg
+        )
+    )
+
+    return hdd_daily_gasreg, cdd_daily_gasreg
+
+def calculate_daily_gasprice_multipliers(
+    inputs_case: str
+) -> tuple[pd.DataFrame, pd.DataFrame]:
+    """
+    Calculate daily gas price multipliers at the r and cendiv levels.
+    This is done by first calculating daily, gasreg-level heating and cooling
+    degree days, where the daily degree day shapes correspond to temperature
+    patterns of the given weather year(s) and annual degree day totals
+    correspond to projections for the model solve years. Then, degree
+    day-price multiplier regression parameters are applied to derive
+    gasreg-level price multipliers. To derive r-level multipliers, the
+    gasreg-level multipliers are copied to their constituent zones. To
+    derive cendiv-level multipliers, gasreg-level multipliers are
+    aggregated via population-weighted average. 
+
+    Args:
+        inputs_case: Path to the inputs case directory.
+
+    Returns:
+        (pd.DataFrame, pd.DataFrame)
+    """
+    # Get degree day-price multiplier regression parameters. These
+    # parameters represent a regression model where heating and
+    # cooling degree days were regressed on the log of the multiplicative
+    # difference between daily gas prices and the annual price for each
+    # gasreg with monthly fixed effects.
+    regression_params = pd.read_csv(
+        os.path.join(
+            inputs_case,
+            'gasreg_degree_day_price_mult_regression_params.csv'
+        ),
+        index_col='param'
+    )
+
+    # Calculate daily gasreg-level HDDs and CDDs
+    hdd_daily_gasreg, cdd_daily_gasreg = calculate_daily_gasreg_degree_days(
+        inputs_case
+    )
+
+    # Apply regression parameters to daily HDD/CDDs
+    # to get daily gasreg-level price multipliers
+    year_datetime_index = hdd_daily_gasreg.index
+    df_out = pd.DataFrame(index=year_datetime_index)
+    for gasreg in regression_params.columns:
+        beta_cdd = regression_params.loc['beta_CDD', gasreg]
+        beta_hdd = regression_params.loc['beta_HDD', gasreg]
+        alpha = regression_params.loc['alpha', gasreg]
+        month_effects_map = (
+            regression_params
+            .loc[regression_params.index.str.contains('alpha_')]
+            [gasreg]
+        )
+        month_effects_map.index = (
+            month_effects_map.index
+            .str
+            .removeprefix('alpha_')
+        )
+        month_effects = (
+            year_datetime_index
+            .get_level_values('datetime')
+            .strftime('%b')
+            .str
+            .upper()
+            .map(month_effects_map)
+        )
+        # Applying the regression parameters gives the log of the
+        # daily multiplicative difference from the annual average
+        # price, so exponentiate to get daily price multipliers.
+        gasreg_price_log_mult_diffs = (
+            alpha
+            + beta_cdd * cdd_daily_gasreg[gasreg]
+            + beta_hdd * hdd_daily_gasreg[gasreg]
+            + month_effects.values
+        )
+        gasreg_price_multipliers = np.exp(gasreg_price_log_mult_diffs)
+        # Divide each multiplier by the annual average of the multipliers
+        # to ensure a mean of 1 (so that the year-round average gas price
+        # doesn't change). 
+        gasreg_price_multipliers = gasreg_price_multipliers.div(
+            gasreg_price_multipliers.groupby(level=0).mean()
+        )
+        df_out[gasreg] = gasreg_price_multipliers
+
+    # Get hierarchy
+    hierarchy = reeds.io.get_hierarchy(os.path.dirname(inputs_case))
+
+    # Create one set of multipliers at the r hierarchy level
+    # by copying the gasreg-level multipliers to their constitutent zones
+    df_out_r = pd.DataFrame(data={
+        r: df_out[gasreg] for r, gasreg in hierarchy['gasreg'].items()
+    })
+
+    # Create another set of multipliers for census divisions by aggregating
+    # the gasreg-level multipliers via population-weighted average
+    gasreg_cendiv_weights = calculate_region_aggregion_population_weights(
+        inputs_case,
+        region_level='gasreg',
+        aggregion_level='cendiv'
+    )
+    gasreg_cendiv_map = dict(zip(hierarchy['gasreg'], hierarchy['cendiv']))
+    df_out_cendiv = (
+        df_out.mul(gasreg_cendiv_weights)
+        .transpose()
+        .rename(gasreg_cendiv_map)
+        .groupby(level=0)
+        .sum()
+        .transpose()
+    )
+
+    return df_out_r, df_out_cendiv
+
 # Time the operation of this script
 tic = datetime.datetime.now()
 
@@ -137,6 +539,7 @@
 fuel = fuel.merge(h2fuel,on=['t','r'],how='left')
 fuel = fuel.sort_values(['t','r'])
 
+
 #%%#################################### 
 ### Natural Gas Demand Calculations ###
 
@@ -157,12 +560,28 @@
 alpha = alpha[alpha.columns[alpha.columns.isin(val_cendiv)]]
 alpha = alpha.round(6)
 
+### Daily gas price multipliers
+daily_gasprice_multipliers_r, daily_gasprice_multipliers_cendiv = (
+    calculate_daily_gasprice_multipliers(inputs_case)
+)
+
+
 #%%###################
 ### Data Write-Out ###
 ######################
 
 fuel.to_csv(os.path.join(inputs_case,'fprice.csv'),index=False)
 ngprice_cendiv.to_csv(os.path.join(inputs_case,'gasprice_ref.csv'))
+reeds.io.write_profile_to_h5(
+    daily_gasprice_multipliers_r,
+    'daily_gasprice_multipliers_r.h5',
+    inputs_case
+)
+reeds.io.write_profile_to_h5(
+    daily_gasprice_multipliers_cendiv,
+    'daily_gasprice_multipliers_cendiv.h5',
+    inputs_case
+)
 
 ngdemand.to_csv(os.path.join(inputs_case,'ng_demand_elec.csv'))
 ngtotdemand.to_csv(os.path.join(inputs_case,'ng_demand_tot.csv'))
diff --git a/reeds/input_processing/hourly_writetimeseries.py b/reeds/input_processing/hourly_writetimeseries.py
index 8ac35efb..f0fce523 100644
--- a/reeds/input_processing/hourly_writetimeseries.py
+++ b/reeds/input_processing/hourly_writetimeseries.py
@@ -257,6 +257,55 @@ def format_climate_inputs(filename, inputs_case, szn_month_weights):
 
         return df_out
 
+
+def get_daily_gasprice_multipliers(
+    sw,
+    hmap_myr,
+    inputs_case,
+    periodtype='rep',
+    region_level='r'
+):
+    """
+    After identifying the modeled days, load the daily gas price
+    multipliers for the given region level and extract the multipliers
+    on the modeled days for each year.
+    """
+    ### Get daily gas price multipliers for region_level
+    dfin = reeds.io.read_file(
+        os.path.join(inputs_case, f'daily_gasprice_multipliers_{region_level}.h5'),
+        parse_timestamps=True
+    )
+    dfin = dfin.unstack(level=0)
+    dfin.columns = dfin.columns.rename([region_level,'t'])
+
+    ### Add time index and forward fill so that the multiplier for
+    ### each day is copied to each hour of that day
+    dfin = dfin.reindex(hmap_myr.timestamp).ffill()
+    dfin.index = (
+        dfin.index
+        .map(hmap_myr.set_index('timestamp')['actual_h'])
+        .rename('h')
+    )
+
+    ### For full year, keep all periods in the modeled years
+    ### Note the daily multipliers are already filtered to contain
+    ### only the modeled years
+    if (sw.GSw_HourlyType == 'year') and (periodtype == 'rep'):
+        dfout = dfin.copy()
+    ### Otherwise, pull out the specified periods
+    else:
+        dfout = dfin.loc[hmap_myr.h.unique()].copy()
+
+    ### Reshape for ReEDS
+    dfout = (
+        dfout.stack(region_level)
+        .reorder_levels([region_level, "h"], axis=0)
+        .sort_index()
+    )
+
+    return dfout
+
+
 def get_yearly_flexibility(
     sw,
     period_szn,
@@ -498,6 +547,8 @@ def main(sw, reeds_path, inputs_case, periodtype='rep', make_plots=1, logging=Tr
             'evmc_storage_energy': ['*i','r','h','t'],
             'flex_frac_all': ['*flex_type','r','h','t'],
             'peak_h': ['*r','h','t','MW'],
+            'daily_gasprice_multipliers_r': ['*r','h','t','multiplier'],
+            'daily_gasprice_multipliers_cendiv': ['*cendiv','h','t','multiplier'],
         }
         for f, columns in write.items():
             pd.DataFrame(columns=columns).to_csv(
@@ -1313,6 +1364,29 @@ def main(sw, reeds_path, inputs_case, periodtype='rep', make_plots=1, logging=Tr
         .reset_index()
     )
 
+    #################################################################
+    #    -- Weather-based daily natural gas price multipliers --    #
+    #################################################################
+    daily_gasprice_multipliers_dict = {}
+    for region_level in ['r', 'cendiv']:
+        df = get_daily_gasprice_multipliers(
+            sw=sw,
+            hmap_myr=hmap_myr,
+            inputs_case=inputs_case,
+            periodtype=periodtype,
+            region_level=region_level
+        )
+        # Update to GSw_HourlyChunkLength resolution.
+        # Note no aggregation method is needed because all hours within
+        # a given day have the same multiplier value, so we just select
+        # the set of hours in chunkmap.
+        df = (
+            df.loc[df.index.get_level_values('h').isin(chunkmap.values())]
+            .stack('t')
+            .rename('multiplier')
+            .reset_index()
+        )
+        daily_gasprice_multipliers_dict[region_level] = df
 
     # %%###################################################################################
     #    -- Write outputs, aggregating hours to GSw_HourlyChunkLength if necessary --    #
@@ -1501,6 +1575,17 @@ def main(sw, reeds_path, inputs_case, periodtype='rep', make_plots=1, logging=Tr
             False,
             False,
         ],
+        ## Annual timeslice gas price multipliers
+        'daily_gasprice_multipliers_r': [
+            daily_gasprice_multipliers_dict['r'].round(decimals),
+            False,
+            False
+        ],
+        'daily_gasprice_multipliers_cendiv': [
+            daily_gasprice_multipliers_dict['cendiv'].round(decimals),
+            False,
+            False
+        ],
         ##################################################################################
         ###### The next parameters are just diagnostics and are not actually used in ReEDS
         ## Representative period weights for postprocessing (szn)
diff --git a/reeds/input_processing/runfiles.csv b/reeds/input_processing/runfiles.csv
index ac9f66ea..7e885b0f 100644
--- a/reeds/input_processing/runfiles.csv
+++ b/reeds/input_processing/runfiles.csv
@@ -93,6 +93,8 @@ forced_retirements.csv,inputs/state_policies/forced_retirements.csv,1,ignore,ign
 fuel2tech.csv,inputs/sets/fuel2tech.csv,1,ignore,ignore,,,,,0,,,set,fuel2tech,mapping between fuel types and generations,
 fuelbin.csv,inputs/sets/fuelbin.csv,1,ignore,ignore,,,,,,,,set,fuelbin,gas usage bracket,
 futurefiles.csv,inputs/userinput/futurefiles.csv,1,ignore,ignore,,,,,0,,,,,,
+gasreg_degree_day_price_mult_regression_params.csv,inputs/fuelprices/gasreg_degree_day_price_mult_regression_params.csv,int(sw.GSw_GasPriceAdjMethod) == 1,ignore,ignore,wide_gasreg,param,,1,0,,,,,,
+gasreg_degree_days.csv,inputs/fuelprices/gasreg_degree_days.csv,int(sw.GSw_GasPriceAdjMethod) == 1,ignore,ignore,wide_gasreg,"t,ddtype",,1,0,,,,,,
 gb.csv,inputs/sets/gb.csv,1,ignore,ignore,,,,,,,,set,gb,gas price bins; must have an odd number of bins; e.g. gb1*gb15,
 gbin.csv,inputs/sets/gbin.csv,1,ignore,ignore,,,,,,,,set,gbin,growth bins,
 gbin_min.csv,inputs/growth_constraints/gbin_min.csv,1,ignore,ignore,,,,,0,,,,,,
diff --git a/reeds/io.py b/reeds/io.py
index 994431f1..dd25e869 100644
--- a/reeds/io.py
+++ b/reeds/io.py
@@ -158,10 +158,12 @@ def get_county2zone(
 
     if as_map:
         dfout = dfin.set_index('FIPS')['r']
-    else:
+    elif case is None:
         fpath_countystate = Path(reeds.io.reeds_path, 'inputs', 'zones', 'county_state.csv')
         county_state = pd.read_csv(fpath_countystate, dtype=str)
         dfout = dfin.merge(county_state, on='FIPS', how='left')
+    else:
+        dfout = dfin
 
     return dfout
 
@@ -1321,6 +1323,26 @@ def get_distpv_cf_hourly():
     )
     return read_file(h5path, parse_timestamps=True)
 
+def get_county_populations():
+    return pd.read_csv(
+        os.path.join(
+            reeds_path,
+            'inputs',
+            'disaggregation',
+            'county_population.csv'
+        )
+    )
+
+def get_state_groups():
+    return pd.read_csv(
+        os.path.join(
+            reeds_path,
+            'inputs',
+            'zones',
+            'state_groups.csv'
+        )
+    )
+
 def get_years(case):
     return pd.read_csv(
         os.path.join(case, 'inputs_case', 'modeledyears.csv')
diff --git a/tests/objective_function_params.yaml b/tests/objective_function_params.yaml
index 8ffddb18..34acaaee 100644
--- a/tests/objective_function_params.yaml
+++ b/tests/objective_function_params.yaml
@@ -212,7 +212,7 @@ szn_adj_gas:
   indexsets:
   - h
   switchon:
-    GSw_GasCurve: 1
+    GSw_GasPriceAdjMethod: 0
 cendiv_weights:
   indexsets:
   - valgen