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Elon Musk: Running U.S. on Solar Requires 100 Square Miles of Panels He'd also need just one square mile of batteries.

By Matthew Humphries

This story originally appeared on PCMag

via PC Mag

Last year, Elon Musk promised to fix South Australia's power problems with a giant rechargeable battery. This year, he's building that battery, which will count as the world's largest once installed. Now Musk is turning his attention to the U.S. and believes it's easily possible to power all of the U.S. using solar power.

At the National Governors Association meeting in Rhode Island, Musk explained his solution to powering the entire United States with solar panels, and it sounds surprisingly simple. All Musk would require is two plots of land. The first would be 100 square miles and filled with solar panels. The second would be one square mile and filled with batteries. That's it!

One hundred square miles, as Musk pointed out, is "a fairly small corner of Nevada or Texas or Utah."

Of course, putting aside a piece of land that big isn't going to happen. Also, it doesn't make sense to rely on one location for all power needs as it would instantly become a target. However, it does show how little is required to fully embrace renewable energy.

So instead of a giant plot of land, the same could be achieved with rooftop solar and utility-scale solar plants spread across the U.S. Of course, Musk would love for all those solar panels and batteries to be Tesla/SolarCity branded, and I suspect many of them will, but it's certainly going to be a growth market as renewable continue to get cheaper.

Musk also points to wind, geothermal, hydropower and nuclear as transition power sources during the move to solar. And then that leaves gasoline and diesel-dependent vehicles, which Tesla is already working on replacing with electric vehicles.

Matthew Humphries

Senior Editor

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