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California utility renegotiates purchase agreement with RWE for 476MWh BESS after regulator rejects initial proposal 

October 24, 2025
San Diego Gas & Electric (SDG&E) is seeking regulatory approval to acquire an operational portion of a BESS facility located in Imperial County, California, from the US development arm of German multinational energy company RWE. 
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VIDEO – Energy Storage Summit 2026: What is the outlook for BESS Capex this year?

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