Ekaterina

> In the documentation, better in the full model representation, it would be important to add a section with a procedure to validate the model. Many users need to validate...

An update regarding a validation methodology: that is absolutely needed to include an approach to calculate the overall energy demand. That is one of the key steps of the validation,...

> Just want to add a small comment: The current link to IRENA's data in the "Full Model: Where to look for reference data" section leads to an error page....

My feeling is that this issue is completely covered with #918 and #959. Can we probably close it? @pz-max

> Really a PR that goes through everything. Just added a comment on 1) abstraction consistency and a 2) tests that makes sure that the os to pathlib swap is...

As discussed during the developers meeting, it could make sense to re-license OSM-related part of PyPSA-Earth with a more liberal MIT license instead of the current AGPL to make possible...

For me, both AGPL or MIT are ok 🏆

Hello @GbotemiB! Great progress 😄 A couple of technical comments: 1) It looks like `costs.csv` has been modified more deeply as it has been probably intended. Could you please fix...

@GbotemiB perfect, thanks a lot for the fix for `costs.csv`. Have checked `add_extra_components` and it looks like are are absolutely right about the type of `n.mapp()` returns: [that is in...

> Thanks @ekatef for the review. > > Question regarding the electrical buses, are the buses in the renewable profile network an electrical bus? I thought the buses from the...