I've found this web site to be informative about what it would take to go fully renewable: https://www.withouthotair.com/ https://www.withouthotair.com/ A lot

I've found this web site to be informative about what it would take to go fully renewable: https://www.withouthotair.com/ https://www.withouthotair.com/ A lot of the calculations are back of the envelope, but I guess provide a ballpark estimate.