if you crunch the numbers on how much solar (desertec has a fun graphic on this for the interested) and wind power we could produce if politicians actually cared about fighting climate change, there is nearly an infinite supply of power for humanity.
This isnt even including fossil fuels, nuclear/fusion, biomass/trash, and hydro.
https://en.wikipedia.org/wiki/Desertec#/media/File:Fullneed....