Negative electricity demand when temporal resolution is 24h

[cerealice]

Checklist

• [ ] I am using the current master branch or the latest release. Please indicate. v 0.11.0
• [ ] I am running on an up-to-date pypsa-eur environment. Update via conda env update -f envs/environment.yaml.

Describe the Bug

Running the config file for a clustering temporal resolution of more than 1h for the electricity sector, in "scripts/prepare_sector_network.py" I believe there is a bug at lines 3202-3206 factor = ( 1 - industrial_demand.loc[loads_i, "current electricity"].sum() / n.loads_t.p_set[loads_i].sum().sum() )

In this case the numerator is an annual value while the denominator is not. I would fix it with some code like this: Line 2562: timestep = n.snapshot_weightings.iloc[0,0] Then the previous lines would be: factor = ( 1 - industrial_demand.loc[loads_i, "current electricity"].sum() / (n.loads_t.p_set[loads_i].sum().sum()*timestep) )

Let me know :)