Remove low voltage buses only once in adjust_network

etrago/appl.py

@@ -682,30 +682,6 @@ def run_etrago(args, json_path):
     # import network from database
     etrago.build_network_from_db()
 
-    etrago.network.links.loc[
-        etrago.network.links.carrier.isin(
-            ["electricity_distribution_grid", "rural_ground_heat_pump",
-             "rural_resistive_heater", "urban_central_air_heat_pump",
-             "urban_central_resistive_heater", 
-             "urban_decentral_resistive_heater"]), "p_nom_extendable"] = False
-
-    # Temporary drop low_voltage buses in foreign countries and combine them with AC
-    low_voltage_buses = etrago.network.buses.loc[
-        etrago.network.buses.carrier == "low_voltage"].copy()
-    for i, row in low_voltage_buses.iterrows():
-        link = etrago.network.links[
-            (etrago.network.links.bus1==i)
-            &(etrago.network.links.carrier=="electricity_distribution_grid")]
-        new_bus = link.bus0.unique()[0]
-        for comp in etrago.network.iterate_components():
-            if "bus" in comp.df.columns:
-                comp.df.loc[comp.df.bus==i, "bus"] = new_bus
-            elif "bus0" in comp.df.columns:
-                comp.df.loc[comp.df.bus0==i, "bus0"] = new_bus
-                comp.df.loc[comp.df.bus1==i, "bus1"] = new_bus
-        etrago.network.remove("Bus", i)
-        etrago.network.mremove("Link", link.index)
-
     # adjust network regarding eTraGo setting
     etrago.adjust_network()
 

etrago/tools/utilities.py

@@ -3161,7 +3161,7 @@ def manual_fixes_datamodel(etrago):
                     etrago.network.links.carrier
                     == "electricity_distribution_grid"
                 )
-            ]
+            ].copy()
             new_bus = link.bus0.unique()[0]
             for comp in etrago.network.iterate_components():
                 if "bus" in comp.df.columns: