California to test whether big batteries can stop summer blackouts
With summer’s heat approaching, California’s plan for avoiding a repeat of last year’s blackouts hinges on a humble savior – the battery, Bloomberg.com reports.
Giant versions of the same technology that powers smart phones and cars are being plugged into the state’s electrical grid at breakneck speed, with California set to add more battery capacity this year than all of China, according to BloombergNEF.
It will be the biggest test yet of whether batteries are reliable enough to sustain a grid largely powered by renewables. Last year, when the worst heat wave in a generation taxed California’s power system and plunged millions into darkness in the first rolling blackouts since the Enron crisis, many blamed the state’s aggressive clean-energy push and its reliance on solar power. Should a heat wave strike again this summer, it will be up to batteries save the day.
Their success or failure may even have implications for President Joe Biden’s ambitious plan to achieve a carbon-free electricity system by 2035 – which would require massive battery deployment and the expansion of renewable energy systems across the nation. Biden’s long-awaited infrastructure plan, unveiled this week, includes a tax credit for grid-scale batteries, according to U.S. Energy Storage Association. They’re part of his larger effort not just to shift to renewable power but to make the aging electric grid more reliable.
“This is going to be the preview summer for batteries in California, and we want to make sure this initial chapter is as successful as possible,’’ said Elliot Mainzer, chief executive officer of the California Independent System Operator, which runs the grid across most of the state.
By this August, the state will have 1,700 megawatts of new battery capacity — enough to power 1.3 million homes and, in theory, avert a grid emergency on the scale of last year’s.
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