Bill Weir Hot Rocks thermal battery pkg
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Energy storage of the future? 'Hot rocks' in a box
A new "thermal battery" prototype in Fresno, California, could be the energy storage of the future. CNN's Bill Weir reports.
3:10 • Source: CNN
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Bill Weir Hot Rocks thermal battery pkg
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Energy storage of the future? 'Hot rocks' in a box
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ATLANTA, GA - MAY 27: Fernando Alverenga of Luminosity, practices prior to the match against Cloud9 at the ELeague Arena at Turner Studios on May 27, 2016 in Atlanta, Georgia. (Photo by Daniel Shirey/Getty Images)
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