Revise export ports data

Snakefile

@@ -1126,7 +1126,7 @@ rule add_export:
         costs=config["costs"],
     input:
         overrides="data/override_component_attrs",
-        export_ports="data/export_ports.csv",
+        export_ports="data/ports.csv",
         costs=COSTDIR + "costs_{planning_horizons}.csv",
         ship_profile="resources/ship_profile_{h2export}TWh.csv",
         network=RESDIR

doc/release_notes.rst

@@ -42,6 +42,8 @@ E.g. if a new rule becomes available describe how to use it `make test` and in o
 
 * Fix bugs in `prepare_sector_network.py` related to links with H2 buses and bug of re-addition of H2 and battery carriers in present `PR #1145 <https://github.com/pypsa-meets-earth/pypsa-earth/pull/1145>`_
 
+* Revise ports data for export in `add_export.py` related to sector model `PR #1175 <https://github.com/pypsa-meets-earth/pypsa-earth/pull/1175>`_
+
 PyPSA-Earth 0.4.1
 =================
 

scripts/add_export.py

@@ -33,12 +33,15 @@ def select_ports(n):
     This function selects the buses where ports are located.
     """
 
-    ports = pd.read_csv(
+    raw_ports = pd.read_csv(
         snakemake.input.export_ports,
         index_col=None,
         keep_default_na=False,
     ).squeeze()
 
+    ports = raw_ports[["name", "country", "fraction", "x", "y"]]
+    ports.loc[:, "fraction"] = ports.fraction.round(1)
+
     ports = ports[ports.country.isin(countries)]
     if len(ports) < 1:
         logger.error(