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Update units formatting on SDM pages (°C, Wm⁻²) #2545

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Merged
kandersolar merged 1 commit into from
Sep 18, 2025
Merged

Update units formatting on SDM pages (°C, Wm⁻²) #2545

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2 changes: 1 addition & 1 deletion pvlib/ivtools/sdm/cec.py
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Original file line number Diff line number Diff line change
Expand Up @@ -27,7 +27,7 @@ def fit_cec_sam(celltype, v_mp, i_mp, v_oc, i_sc, alpha_sc, beta_voc,
cells_in_series : int
Number of cells in series
temp_ref : float, default 25
Reference temperature condition [C]
Reference temperature condition, [°C]

Returns
-------
Expand Down
12 changes: 6 additions & 6 deletions pvlib/ivtools/sdm/desoto.py
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Expand Up @@ -58,7 +58,7 @@ def fit_desoto(v_mp, i_mp, v_oc, i_sc, alpha_sc, beta_voc, cells_in_series,
dEgdT: float, default -0.0002677 - value for silicon
Variation of bandgap according to temperature. [1/K]
temp_ref: float, default 25
Reference temperature condition. [C]
Reference temperature condition. [°C]
irrad_ref: float, default 1000
Reference irradiance condition. [Wm⁻²]
init_guess: dict, optional
Expand Down Expand Up @@ -93,7 +93,7 @@ def fit_desoto(v_mp, i_mp, v_oc, i_sc, alpha_sc, beta_voc, cells_in_series,
irrad_ref: float
Reference irradiance condition. [Wm⁻²]
temp_ref: float
Reference temperature condition. [C]
Reference temperature condition. [°C]

scipy.optimize.OptimizeResult
Optimization result of scipy.optimize.root().
Expand All @@ -110,7 +110,7 @@ def fit_desoto(v_mp, i_mp, v_oc, i_sc, alpha_sc, beta_voc, cells_in_series,
"""

# Constants
k = constants.value('Boltzmann constant in eV/K') # in eV/K
k = constants.value('Boltzmann constant in eV/K')
Tref = temp_ref + 273.15 # [K]

# initial guesses of variables for computing convergence:
Expand Down Expand Up @@ -234,7 +234,7 @@ def fit_desoto_sandia(ivcurves, specs, const=None, maxiter=5, eps1=1.e-3):
effective irradiance for each IV curve, i.e., POA broadband
irradiance adjusted by solar spectrum modifier [W / m^2]
tc : array
cell temperature for each IV curve [C]
cell temperature for each IV curve. [°C]
i_sc : array
short circuit current for each IV curve [A]
v_oc : array
Expand All @@ -254,9 +254,9 @@ def fit_desoto_sandia(ivcurves, specs, const=None, maxiter=5, eps1=1.e-3):

const : dict
E0 : float
effective irradiance at STC, default 1000 [W/m^2]
effective irradiance at STC, default 1000 [Wm⁻²]
T0 : float
cell temperature at STC, default 25 [C]
cell temperature at STC, default 25°C. [°C]
k : float
Boltzmann's constant [J/K]
q : float
Expand Down
14 changes: 7 additions & 7 deletions pvlib/ivtools/sdm/pvsyst.py
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Expand Up @@ -38,7 +38,7 @@ def fit_pvsyst_sandia(ivcurves, specs, const=None, maxiter=5, eps1=1.e-3):
effective irradiance for each IV curve, i.e., POA broadband
irradiance adjusted by solar spectrum modifier [W / m^2]
tc : array
cell temperature for each IV curve [C]
cell temperature for each IV curve [°C]
i_sc : array
short circuit current for each IV curve [A]
v_oc : array
Expand All @@ -56,9 +56,9 @@ def fit_pvsyst_sandia(ivcurves, specs, const=None, maxiter=5, eps1=1.e-3):

const : dict
E0 : float
effective irradiance at STC, default 1000 [W/m^2]
effective irradiance at STC, default 1000 [Wm⁻²]
T0 : float
cell temperature at STC, default 25 [C]
cell temperature at STC, default 25°C. [°C]
k : float
Boltzmann's constant [J/K]
q : float
Expand Down Expand Up @@ -272,10 +272,10 @@ def pvsyst_temperature_coeff(alpha_sc, gamma_ref, mu_gamma, I_L_ref, I_o_ref,
Default of 1.121 eV is for crystalline silicon. Must be positive. [eV]

irrad_ref : float, default 1000
Reference irradiance. [W/m^2].
Reference irradiance. [Wm⁻²].

temp_ref : float, default 25
Reference cell temperature. [C]
Reference cell temperature. [°C]


Returns
Expand Down Expand Up @@ -327,7 +327,7 @@ def fit_pvsyst_iec61853_sandia_2025(effective_irradiance, temp_cell,
effective_irradiance : array
Effective irradiance for each test condition [W/m²]
temp_cell : array
Cell temperature for each test condition [C]
Cell temperature for each test condition. [°C]
i_sc : array
Short circuit current for each test condition [A]
v_oc : array
Expand Down Expand Up @@ -366,7 +366,7 @@ def fit_pvsyst_iec61853_sandia_2025(effective_irradiance, temp_cell,
temperature_tolerance : float, default 1
Tolerance for temperature variation around the STC value.
The default value corresponds to a +/- 1 degree interval around the STC
value of 25 degrees. [C]
value of 25°C. [°C]

Returns
-------
Expand Down
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