implement delay years for Offhsore NEP

Changelog.md

@@ -1,4 +1,5 @@
 # Changelog
+- add option for Offhsore NEP to delay projects by x years (CurPol and KN2045minus_WorstCase are delayed by one year)
 - Force onwind south by increasing minimum capacity and decreasing capacity per sqkm
 - Adjusting aviation demand (from Aladin) and emission accounting (only domestic aviation for national target)
 - Increase HVC_environment_sequestration_fraction from 0.1 to 0.6

config/config.yaml

@@ -683,6 +683,7 @@ onshore_nep_force:
 offshore_nep_force:
   cutin_year: 2025
   cutout_year: 2030
+  delay_years: 0
 
 scale_capacity:
   2020:

config/scenarios.manual.yaml

@@ -39,10 +39,10 @@ CurrentPolicies:
               2045: 86.5
           offwind:
             DE:
-              2030: 22.5   # 75 % Wind-auf-See Law
-              2035: 22.5
-              2040: 22.5
-              2045: 22.5
+              2030: 17.3
+              2035: 29.3
+              2040: 29.3
+              2045: 29.3
           solar:
             DE:
               2030: 161.25   # 75 % PV strategy
@@ -52,6 +52,14 @@ CurrentPolicies:
       # boundary condition of maximum volumes
       limits_capacity_max:
         Generator:
+          offwind:
+            DE:
+              2020: 7.8
+              2025: 11.3
+              2030: 17.3 # 12 less than NEP, because of 1 year delay
+              2035: 35 # 29.3 + a little extra
+              2040: 70
+              2045: 70
           onwind:
             DE:
               2030: 94.5 # uba Projektionsbericht
@@ -114,6 +122,10 @@ CurrentPolicies:
     district_heating:
       potential: 0.1
 
+  offshore_nep_force:
+    cutin_year: 2025
+    cutout_year: 2035 # Hackily reduced to 2030 if delay_years: 1
+    delay_years: 1
 
 
 KN2045_Bal_v4:
@@ -557,10 +569,10 @@ KN2045minus_WorstCase:
               2045: 86.5
           offwind:
             DE:
-              2030: 22.5   # 75 % Wind-auf-See Law
-              2035: 22.5
-              2040: 22.5
-              2045: 22.5
+              2030: 17.3   # 75 % Wind-auf-See Law
+              2035: 29.3
+              2040: 29.3
+              2045: 29.3
           solar:
             DE:
               2030: 161.25   # 75 % PV strategy
@@ -573,6 +585,14 @@ KN2045minus_WorstCase:
               2030: 5
       limits_capacity_max:
         Generator:
+          offwind:
+            DE:
+              2020: 7.8
+              2025: 11.3
+              2030: 17.3 # 12 less than NEP, because of 1 year delay
+              2035: 35 # 29.3 + a little extra
+              2040: 70
+              2045: 70
           onwind:
             DE:
               2030: 94.5 # uba Projektionsbericht
@@ -588,6 +608,12 @@ KN2045minus_WorstCase:
     district_heating:
       potential: 0.1
 
+  offshore_nep_force:
+    cutin_year: 2025
+    cutout_year: 2035 # Hackily reduced to 2030 if delay_years: 1
+    delay_years: 1
+
+
 KN2045minus_SupplyFocus:
 # Nachfrage genau so hoch wie in Szenario WorstCase
 # Ausbau EE und EE Importe jetzt aber auskömmlich

workflow/scripts/modify_prenetwork.py

@@ -1055,6 +1055,20 @@ def force_connection_nep_offshore(n, current_year):
     # Load shapes and projects
     offshore = pd.read_csv(snakemake.input.offshore_connection_points, index_col=0)
 
+    if int(snakemake.params.offshore_nep_force["delay_years"]) != 0:
+        # Modify 'Inbetriebnahmejahr' by adding the delay years for rows where 'Inbetriebnahmejahr' > 2025
+        offshore.loc[
+            offshore["Inbetriebnahmejahr"] > 2025, "Inbetriebnahmejahr"
+        ] += int(snakemake.params.offshore_nep_force["delay_years"])
+        logger.info(
+            f"Delaying NEP offshore connection points by {snakemake.params.offshore_nep_force['delay_years']} years."
+        )
+        # This is a hack s.t. for CurPol and WorstCase the 2030 projects are delayed to the 2035 period, but the later projects are ignored
+        offshore.loc[offshore["Inbetriebnahmejahr"] > 2031, "Inbetriebnahmejahr"] += 5
+        logger.info(
+            "Delaying NEP offshore connection points after 2031 by another 5 years."
+        )
+
     goffshore = gpd.GeoDataFrame(
         offshore,
         geometry=gpd.points_from_xy(offshore.lon, offshore.lat),