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Used EV batteries could upend the race for long-duration storage
Redwood Materials says second-life batteries are the cheapest form of long-duration storage. If true, battery startups are in trouble — and renewables are…
Former Tesla Chief Technology Officer JB Straubel unveiled a surprising new project in June at the Tahoe campus of his lithium-ion recycling company, Redwood Materials. If Straubel takes this concept mainstream, it could revolutionize the arms race for long-duration storage — and radically improve the odds of running the economy on a largely renewable grid. The company’s datapoints on the prices of other battery types were drawn from BloombergNEF’s 2024 analysis of the LDES field, augmented with Redwood’s internal estimates for what a complete iron-air system would cost today, since that technology isn’t yet commercially available.
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