California Flats, a vast 2900-acre site in central California, is lined with solar panels. The surplus energy generated here flows directly into on-site batteries. This setup is part of the California Flats Solar-plus-Storage Project, showcasing a significant shift in renewable energy.
Renewable energy companies have long struggled with energy storage challenges. Storing massive amounts of produced energy for later use posed a dilemma. However, advancements in battery technology provide a promising solution. In California, grid-scale batteries can now store enough energy to power millions of homes for a few hours. On many days, battery power ranks as the second largest energy source in the state.
Given the rapid growth of this technology, Cooper Katz McKim, a producer on The Indicator from Planet Money, is examining its implications. This investigation is part of a three-part series that delves into the evolving battery landscape.
For those curious about the energy sector’s future, stay informed by reaching out with questions to [email protected]. Supporting public media through NPR+ offers additional benefits, including sponsor-free listening to over 25 podcasts. Discover more at plus.npr.org.

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