add option to cut Feb 29 in leap years

config.default.yaml

@@ -37,6 +37,7 @@ enable:
   build_natura_raster: false
   retrieve_natura_raster: true
   custom_busmap: false
+  drop_leap_days: true
 
 electricity:
   voltages: [220., 300., 380.]

scripts/add_electricity.py

@@ -625,4 +625,8 @@ if __name__ == "__main__":
 
     add_nice_carrier_names(n, snakemake.config)
 
+    if snakemake.config['enable'].get('drop_leap_days', True):
+        leap_days = (n.snapshots.day == 29) & (n.snapshots.month == 2)
+        n.set_snapshots(n.snapshots[~leap_days])
+
     n.export_to_netcdf(snakemake.output[0])