Simplify scenarios (#84)

* start by making Mix the default scenario

* make script more robust

* - change syntax of national co2_budget
- define a default national_co2_budget
- allow empty scenario, which falls back to the defaults specified in pypsa.de.yaml

* simplify scenario definitions, fallback to defaults more often

* change prefix

* ariadne_template is data not resources

* fix rounding error

* disable interactive mode in  final plotting script

* decouple ariadne DB pre-workflow from scenario management

* fix key error

* error if co2 budget for country other than DE specified

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* improve wording

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Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

Author: 2 people

scripts/pypsa-de/additional_functionality.py

@@ -380,6 +380,11 @@ def add_national_co2_budgets(n, snakemake, national_co2_budgets, investment_year
     co2_total_totals = co2_totals[sectors].sum(axis=1) * nyears
 
     for ct in national_co2_budgets:
+        if ct != "DE":
+            logger.error(
+                f"CO2 budget for countries other than `DE` is not yet supported. Found country {ct}. Please check the config file."
+            )
+
         limit = co2_total_totals[ct] * national_co2_budgets[ct][investment_year]
         logger.info(
             f"Limiting emissions in country {ct} to {national_co2_budgets[ct][investment_year]:.1%} of "