Feature jg

[JulianGeis]

The "Wasserstoff Kernnetz" is a starting network for hydrogen transport proposed by the Vereinigung der Fernleitungsnetzbetreiber Gas e.V. -> https://fnb-gas.de/wasserstoffnetz-wasserstoff-kernnetz/
It is supposed to be build up until 2032, starting in 2025. To adapt the scenarios on the newly planned infrastructure, this feature implements the kernnetz.

Summary:

• added functionality to include the wasserstoff kernnetz based on the functionality for the gas network
• options are added to config
• scripts to add build and to cluster the kernnetz are included
• locations for the kernnetz are included
• local testing worked fine

Map of the FNB Gas e.V:

Kernnetz after build_kernnetz.py:

Kernnetz with 22 model regions after clustering:

Kernnetz after integration in pypsa-ariadne with currently 22 clusters:

Code used to reproduce the plots:

import pypsa 
import matplotlib.pyplot as plt
import cartopy.crs as ccrs
import pandas as pd

n = pypsa.Network(path)
n.links.bus0 = n.links.bus0.str[:-3]
n.links.bus1 = n.links.bus1.str[:-3]

n.links[(n.links.carrier == "H2 pipeline") & (n.links.p_nom_min > 0)][["bus0", "bus1","p_nom_min"]]

fig, ax = plt.subplots(1, 1, figsize=(20,20), subplot_kw={"projection":ccrs.PlateCarree()})
n.links = n.links[n.links.carrier == "H2 pipeline"]

n.plot(ax=ax, line_widths=0, link_widths=n.links.p_nom_min/(n.links.p_nom_min+0.01)) 

[fneum]

@JulianGeis, we can worry about the merge conflicts after you've had a look at the code review.

[fneum]

@JulianGeis, have a look at my changes in ef5afa0.

Looks good! I have checked the main mechanisms, and I think this can be merged now.

Here's what I changed:

• I removed some accidental code additions.
• The function reduce_capacity is now vectorized. You generally want to avoid iterating over rows of a dataframe with .iterrows() as this can lead to performance regressions.
• The lossy_bidirectional_links() function can get a subset to avoid duplicate links in pathway optimisation
• some small-ish code simplifications, in particular in the block fixing the capacities for investment years before 2030 :)
• added mock_snakemake()
• removed most function inceptions, i.e. function definitions inside functions
• added color for Wasserstoffkernnetz for plotting