Well there's also this thing called "roofs" and there is collectively a lot of them. While the economic efficiency of massively distributing your solar collect

Well there's also this thing called "roofs" and there is collectively a lot of them. While the economic efficiency of massively distributing your solar collection across residential and commercial buildings is less than a grid scale, at the same time you get far more resilience with all the buildings having local energy generating capacity in disaster situations. It also alleviates the total amount of energy the grid needs to transport (especially for home/business charging of EV vehicles), so grid development/maintenance costs will stay sane. Not that grid scale isn't important. Heat pumps, home geothermal, residential solar, grid solar, wind, battery storage, pumped hydro storage, and whatever else works will be necessary. Hopefully synthetic fuels / algae fuels / aluminum air batteries / next gen nuclear / grid geothermal can also all contribute.