alt Hacker NewsThe problem is that much of Europe lies pretty far north. Certainly, Spain can deploy solar power with high efficiency, but Netherlands can't grab as much sunlight no matter what, to say nothing of Sweden or Norway. Wind power helps, but it's way more expensive than solar.
Wind is still much cheaper than new nuclear with an LCOE in the UK under half that of new nuclear.
Surprisingly it seems worthwhile to build solar in places like the UK/Netherlands/Denmark since solar production is negatively correlated with wind.
Norway and Sweden have large hydropower resources too.