reincluded fuel type in chp carrier attribute (#1622)

Co-authored-by: cpschau <caspar.schauss@ieg.fraunhofer.de>

Author: cpschau

doc/release_notes.rst

@@ -11,6 +11,7 @@ Release Notes
 Upcoming Release
 ================
 
+* Re-included the fuel name as part of the carrier attribute for CHP plants added in :mod:`prepare_sector_network`
 
 * Added option to use dynamic capacity for pit storage using the ``e_max_pu`` attribute of the store component, which is calculated in the new rule :mod:`build_tes_capacity_profiles` and added to the network in :mod:`prepare_sector_network`.
 

scripts/prepare_sector_network.py

@@ -3246,7 +3246,7 @@ def add_heat(
                     bus1=nodes,
                     bus2=nodes + " urban central heat",
                     bus3="co2 atmosphere",
-                    carrier="urban central CHP",
+                    carrier=f"urban central {fuel} CHP",
                     p_nom_extendable=True,
                     capital_cost=costs.at["central gas CHP", "capital_cost"]
                     * costs.at["central gas CHP", "efficiency"],
@@ -3266,7 +3266,7 @@ def add_heat(
                     bus2=nodes + " urban central heat",
                     bus3="co2 atmosphere",
                     bus4=spatial.co2.df.loc[nodes, "nodes"].values,
-                    carrier="urban central CHP CC",
+                    carrier=f"urban central {fuel} CHP CC",
                     p_nom_extendable=True,
                     capital_cost=costs.at["central gas CHP", "capital_cost"]
                     * costs.at["central gas CHP", "efficiency"]