Even ignoring nuclear environmentalists are still the enemy here.

Green energy is diffuse. Fields of solar. Ridges dotted with turbines. Each unit needs a power cable running away from it, access roads, etc, etc. A lot of area has to be developed for a given payback (sellable power).

Environmentalists and have been instrumental in making it economically impossible to develop land cheap enough to make low value density projects like that pencil out.

The higher power cost states in the US would likely be dotted with all manner of solar infill if not for up front costs that these shortsighted and selfish people have imposed on any land alteration larger than approx SFH lot size. Farmer Johnson would love nothing more than to put up solar on that ~2ac hillside he owns but cannot farm economically. Neither he nor some 3rd party who would put up the panels will shell out half a mil for an EPA CG permit just to clear the vegetation because the panels will never pay that back in their lives.

The economics of compliance are why the only greenfield development that happens these days is value dense commercial stuff (shopping plaza, big box store, data center, office buildings etc) or dense SFH development.

The most rosy possible outlook is that we "just" wait for the hippie boomers who cooked this crap up to croak, shit can the clean water act and come up with some new way of regulating development that doesn't saddle these super low impact projects (it's hard to be lower impact than panels or turbines) with fixed-ish costs that are a non-starter except at huge scale.

But of course there are so many parties who are making rent off this broken system who won't go down without a fight.