update FT to account for Hydrogen and Electricity input (pypsa-meets-…

…earth#1226)

* update FT to account for Hydrogen and electricity input

* revert implementation

* include electricity bus

* added  electricity bus

* revert snakemock

* Update release_notes.rst

* revert efficiency for FT

doc/release_notes.rst

@@ -18,6 +18,7 @@ This part of documentation collects descriptive release notes to capture the mai
 
 **Minor Changes and bug-fixing**
 
+* Added electricity bus to Fischer-Tropsch in prepare_sector_network.py `PR #1226 <https://github.com/pypsa-meets-earth/pypsa-earth/pull/1226>`__
 
 
 PyPSA-Earth 0.5.0

scripts/prepare_sector_network.py

@@ -170,6 +170,7 @@ def H2_liquid_fossil_conversions(n, costs):
         bus0=spatial.nodes + " H2",
         bus1=spatial.oil.nodes,
         bus2=spatial.co2.nodes,
+        bus3=spatial.nodes,
         carrier="Fischer-Tropsch",
         efficiency=costs.at["Fischer-Tropsch", "efficiency"],
         capital_cost=costs.at["Fischer-Tropsch", "fixed"]
@@ -178,6 +179,8 @@ def H2_liquid_fossil_conversions(n, costs):
         ],  # Use efficiency to convert from EUR/MW_FT/a to EUR/MW_H2/a
         efficiency2=-costs.at["oil", "CO2 intensity"]
         * costs.at["Fischer-Tropsch", "efficiency"],
+        efficiency3=-costs.at["Fischer-Tropsch", "electricity-input"]
+        / costs.at["Fischer-Tropsch", "hydrogen-input"],
         p_nom_extendable=True,
         p_min_pu=options.get("min_part_load_fischer_tropsch", 0),
         lifetime=costs.at["Fischer-Tropsch", "lifetime"],