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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WASHINGTON, DC - DECEMBER 08: Former Rep. Barney Frank (D-MA) speaks during a bill enrollment ceremony for the Respect For Marriage Act as Rep. David Cicilline (D-RI) looks on at the U.S. Capitol Building on December 08, 2022 in Washington, DC. In a 258-169 vote the House of Representatives passed the The Respect For Marriage Act which ensures marriage equality for same-sex and interracial couples. (Photo by Anna Moneymaker/Getty Images)
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