Allow absence of offshore wind from sector-coupled networks

doc/release_notes.rst

@@ -79,6 +79,8 @@ Upcoming Release
 * The outputs of the rule ``retrieve_gas_infrastructure_data`` no longer
   marked as ``protected()`` as the download size is small.
 
+* Bugfix: allow modelling sector-coupled landlocked regions. (Fixed handling of offshore wind.)
+
 PyPSA-Eur 0.10.0 (19th February 2024)
 =====================================
 

rules/build_sector.smk

@@ -808,6 +808,14 @@ rule build_existing_heating_distribution:
         "../scripts/build_existing_heating_distribution.py"
 
 
+def input_profile_offwind(w):
+    return {
+        f"profile_{tech}": resources(f"profile_{tech}.nc")
+        for tech in ["offwind-ac", "offwind-dc"]
+        if (tech in config_provider("electricity", "renewable_carriers")(w))
+    }
+
+
 rule prepare_sector_network:
     params:
         time_resolution=config_provider("clustering", "temporal", "resolution_sector"),
@@ -829,6 +837,7 @@ rule prepare_sector_network:
         eurostat_report_year=config_provider("energy", "eurostat_report_year"),
         RDIR=RDIR,
     input:
+        unpack(input_profile_offwind),
         **rules.cluster_gas_network.output,
         **rules.build_gas_input_locations.output,
         retro_cost=lambda w: (
@@ -882,8 +891,6 @@ rule prepare_sector_network:
             if config_provider("foresight")(w) == "overnight"
             else resources("costs_{planning_horizons}.csv")
         ),
-        profile_offwind_ac=resources("profile_offwind-ac.nc"),
-        profile_offwind_dc=resources("profile_offwind-dc.nc"),
         h2_cavern=resources("salt_cavern_potentials_s{simpl}_{clusters}.csv"),
         busmap_s=resources("busmap_elec_s{simpl}.csv"),
         busmap=resources("busmap_elec_s{simpl}_{clusters}.csv"),

scripts/prepare_sector_network.py

@@ -453,7 +453,9 @@ def update_wind_solar_costs(n, costs):
     # code adapted from pypsa-eur/scripts/add_electricity.py
     for connection in ["dc", "ac"]:
         tech = "offwind-" + connection
-        profile = snakemake.input["profile_offwind_" + connection]
+        if tech not in n.generators.carrier.values:
+            continue
+        profile = snakemake.input["profile_offwind-" + connection]
         with xr.open_dataset(profile) as ds:
 
             # if-statement for compatibility with old profiles