It's limitless in that it's not outside the bounds of physics or economics if we really wanted to replace 100% of our energy with solar, night time/inclement we

It's limitless in that it's not outside the bounds of physics or economics if we really wanted to replace 100% of our energy with solar, night time/inclement weather storage notwithstanding There's nothing but a lack of willpower preventing us from being on 100% solar and wind It's limitless in that in a closed system not connected to the grid, it's not automatically a bad thing if you waste it. Waste some solar power, nothing happens. Waste some coal or oil and you either have a slick on the ground or a ton of new CO2 in the air