Local variable referenced before content - powerplantmatching

[pz-max]

Update, we tested the current version of powerplantmatching in branch WP2. @mnm-matin and I had the following issue:

Further, just a note. It seems that the issue you had with the custom_config is solved (see PyPSA/powerplantmatching#41). As you mentioned in the README it makes probably sense to use now the less hacky custom_config feature, since the issue is fixed. They are also quite some updates upstream that might remove the above-described issue.

Let us know what are your thoughts or plans 👍

[koen-vg]

Closed by #116