Sunrun Inc. announced that its fleet of home batteries enrolled in distributed power plants dispatched over 340 megawatts of peak power on the evening of June 24. This emergency power supported grids in California, New York, Massachusetts, Rhode Island, and Puerto Rico, helping to prevent rotating blackouts amid a triple-digit heat wave on the East Coast.
The dispatches addressed grid congestion and overheating transmission lines, which caused sharp increases in wholesale electricity prices and strained traditional power plants. In New York, Sunrun completed its fourth dispatch event within a week, and in Puerto Rico, over 5,600 batteries were activated in less than one hour to assist with power generation shortfalls.
Sunrun's California statewide distributed power plant dispatched 325 megawatts of peak power, significantly reducing the state’s evening peak demand. With nearly a gigawatt of total battery capacity installed, equivalent to a nuclear power plant’s worth of peak power, Sunrun is positioned as the largest distributed battery power plant provider and operator globally, capable of rapidly deploying utility-scale capacity.
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