Revert "Add option for negative load shedding at e-Mobility buses"

This reverts commit 0f4e7ab.

etrago/tools/utilities.py

@@ -623,12 +623,7 @@ def connected_transformer(network, busids):
     return network.transformers[mask]
 
 
-def load_shedding(
-    self,
-    temporal_disaggregation=False,
-    negative_load_shedding_ev=False,
-    **kwargs,
-):
+def load_shedding(self, temporal_disaggregation=False, **kwargs):
     """Implement load shedding in existing network to identify
     feasibility problems
 
@@ -687,31 +682,6 @@ def load_shedding(
             "Generator",
         )
 
-        if negative_load_shedding_ev:
-            # Add negative load shedding generators for e-Mobility buses
-            ev_buses = network.buses[network.buses.carrier == "Li_ion"].index
-            index_ev = list(
-                range(
-                    start + len(network.buses.index),
-                    start + len(network.buses.index) + len(ev_buses),
-                )
-            )
-            network.import_components_from_dataframe(
-                pd.DataFrame(
-                    dict(
-                        marginal_cost=-marginal_cost,
-                        p_nom=p_nom,
-                        p_min_pu=-1,
-                        p_max_pu=0,
-                        carrier="negative load shedding",
-                        bus=ev_buses,
-                        control="PQ",
-                    ),
-                    index=index_ev,
-                ),
-                "Generator",
-            )
-
 
 def set_control_strategies(network):
     """Sets control strategies for AC generators and storage units