Wind and Solar are 'support' sources of energy at best. Viable for houses facing a certain direction, viable to power small companies, viable for expeditions, or to power a coastal village.

They will NOT work, if you want to power a multi-milion city, an industrial park, a huge port, or a science project. Nuclear, both fission and fusion are necessary green energy projects until we find a smarter way of producing renewable energy, which is NOT solar farms the size of a small city or engulfing entire coasts and hills in wind turbines, that constantly break down and kill birds. And both require massive amounts of lithium for batteries, mining of which is toxic and has a huge carbon footprint.