make sure DC transmission projects appear in the correct year (#187)

* make sure DC transmission projects appear in the correct year

This script forces DC transmission projects that are built after the
current investment year to have p_nom_opt = 0. The planned capacity
continues to be stored in p_nom.

The changes are a compromise with behaviour of PyPSA-Eur scripts:

prepare_network.py sets p_nom_min = p_nom for opt setting
add_brownfield.py sets p_nom_min = p_nom_opt from previous

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

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* only force onshore NEP projects between cutin and cutout years

E.g. only force in projects planned to go into service between 2020
and 2030. Allow later lines to be built, but don't force them.

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

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

* hack the correct capacities in the post networks before exporting data. still requires fixing for 2040

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

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

* set p_nom_min in postprocessing of transmission projects

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

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

* fix Syntax warning

* correctly account for international links and  inverter costs

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

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

* consider international h2 and AC transmission

* read discretization values from config

* read threshold from config as well

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

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* rename prefix

---------

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

config/config.yaml

@@ -4,7 +4,7 @@
 
 # docs in https://pypsa-eur.readthedocs.io/en/latest/configuration.html#run
 run:
-  prefix: 202417mergetag013
+  prefix: 240918_nep_DC
   name:
   # - CurrentPolicies
   - KN2045_Bal_v4
@@ -184,7 +184,7 @@ lines:
 
 # docs in https://pypsa-eur.readthedocs.io/en/latest/configuration.html#enable
 enable:
-  retrieve: true # set to false once initial data is retrieved
+  retrieve: false # set to false once initial data is retrieved
   retrieve_cutout: false # set to false once initial data is retrieved
 clustering:
   # simplify_network:
@@ -612,3 +612,10 @@ must_run_biogas:
   enable: false
   p_min_pu: 0.6
   regions: ['DE']
+
+transmission_projects:
+  new_link_capacity: keep #keep or zero
+
+onshore_nep_force:
+  cutin_year: 2020
+  cutout_year: 2030

workflow/Snakefile

@@ -36,6 +36,7 @@ resources = path_provider("resources/", RDIR, policy, exclude)
 
 RESULTS = "results/" + RDIR
 
+
 module pypsaeur:
     snakefile:
         "submodules/pypsa-eur/Snakefile"
@@ -232,6 +233,7 @@ rule modify_prenetwork:
         land_transport_electric_share=config_provider(
             "sector", "land_transport_electric_share"
         ),
+        onshore_nep_force=config_provider("onshore_nep_force"),
     input:
         network=RESULTS
         + "prenetworks-brownfield/elec_s{simpl}_{clusters}_l{ll}_{opts}_{sector_opts}_{planning_horizons}.nc",
@@ -458,6 +460,7 @@ rule export_ariadne_variables:
         energy_totals_year=config_provider("energy", "energy_totals_year"),
         co2_price_add_on_fossils=config_provider("co2_price_add_on_fossils"),
         co2_sequestration_cost=config_provider("sector", "co2_sequestration_cost"),
+        post_discretization=config_provider("solving", "options", "post_discretization"),
     input:
         template=resources("template_ariadne_database.xlsx"),
         industry_demands=expand(