How much would it cost to power the world with solar panels?
It would take 51.4 billion 350W solar panels to power the world! Put another way, this is the equivalent of a solar power plant that covers 115,625 square miles.
Powering The Entire World With Solar: Surface Area and ...
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In our area, the big "green" energy utility Nextera is building a 1600 acre solar farm - and their press releases advertise it will produce enough energy for 500 homes. Which means the "footprint" of each home which is powered by solar now is 3+ acres.
It seems to me that utility-scale solar is an absolute failure. If government wants adoption, it should rather focus on pushing solar down to the lowest level - on the home itself.