A bit of realism would help here. Yes, there's a left/NIMBY overlap to some degree, but the forces from the non-right camp seeking to limit power development comes from the NIMBY elements, not the left elements.
Germany recently finished their complete dismantlement of the nations nuclear power. Another nuclear country Sweden, has shut down seven of their reactors, but are at least rhetorically changing back to supporting nuclear.
Go and talk in real life with people on the left and you'll find many of them are against nuclear power. Go and talk in real life with people on the right and it will be hard for you to find anybody who is against solar power. Because why would you be against solar?
> The demands to remove power sources come from the left.
I also wouldn't have written "remove a power source", since there are movements on the left against several different power sources, including nuclear and coal and maybe more. In the context of this discussion we might however stick to just talking about nuclear and solar.