This giant underground battery is a $1-billion clean energy solution
What can store solar power for after dark, doesn’t require lithium and costs three-quarters of a billion dollars? The answer is deep beneath the ground in California’s San Joaquin Valley — or at least, it will be.
A group of local governments announced Thursday it’s signed a 25-year, $775-million contract to buy power from what would be the world’s largest compressed-air energy storage project. The innovative technology could help California — and other states and nations — transition from planet-warming fossil fuels to renewable energy, without causing blackouts.
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