Micha

Same error for me. Unfortunately this makes the linter pretty much unusable for me since i use `randn` a lot.

Thank you for the quick answer. So there are basically three things to implement for a JacVecOperator: - `L(u,p,t)` for Jac(u) * u - `*` for Jac(u) * x -...

I have the same issue with a Github worker (running Ubuntu). This is the error message ``` /home/runner/.julia/packages/GR/NSt7D/src/../deps/gr/bin/gksqt: error while loading shared libraries: libQt5Widgets.so.5: cannot open shared object file: No...

please add the CHPs in add_existing_power and not in add_existing_heating (because of the differences in the grouping year logic)

- [ ] also make sure not to add power-only biomass plants twice - [x] and perhaps lets find another name for the power only plants, the `OP` is somewhat...

I came across the same problem. Is there an immediate workaround when mutation is not an option?

i ran into the same issue today, see https://github.com/PyPSA/pypsa-ariadne/issues/59

With #967 in place and grouping years [2015,2021] all existing capacities seem to be assigned correctly and do not get overwritten by the optimization. However, for the extendable solar-2020 generator,...