`p_nom_min` is negative for some renewables

[casinocullen]

Checklist

• [X] I am running on an up-to-date pypsa-usa environment. Update via conda env update -f envs/environment.yaml

Issue exisits on what branch

Master

The Issue

I don't understand why some generator has negative p_nom_min, like in the screenshot below

Steps To Reproduce

No response

Expected Behavior

No response

Error Message

No response

Anything else?

No response

[ktehranchi]

Which network are you referring to? ie is this the output of solve_network?

I am pretty this is done intentionally for numerical reasons at some point (maybe during solving) from the pypsa or pypsa-eur implementation but need to confirm.