How much would it cost to run the entire united states on solar power?

And how many square feet of solar panels would this require? Cite your source if possible please.

Best answer:

Answer by georock1959
It sounds nice, but that’s a virtual impossibility. Solar panels only work efficiently when the sun is shining, and at the right angle – perhaps 6 hours per day. In the northern US, you might only have 6 months of efficient electricity production.

So the big problem is what to do at night when there is no sun. You can’t store electricity, so you need some type of firm energy source, such as hydro, nuclear, or coal to make up for that shortfall.

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