Sunrun completes distributed power plant program with PG&E

Sunrun Inc. (NASDAQ: RUN) completed a distributed power plant program with Pacific Gas and Electric Company that used more than 1,000 residential battery systems to provide local grid relief in Northern California.

The program, called Local PeakShift Power, operated as part of PG&E's Seasonal Aggregation of Versatile Energy program. After testing from April to June 2025, the distributed power plant dispatched more than 50 times from July through October 2025, totaling more than 1,200 dispatching hours when local demand approached system capacity.

Sunrun customers with storage-plus-solar systems living near or connected to more than two dozen constrained power lines and substations in PG&E's service area participated in the program. The systems exported energy to alleviate local grid constraints with the goal of helping PG&E avoid or defer distribution upgrades.

A post-season evaluation by Demand Side Analytics found that Sunrun's battery groupings followed PG&E's dispatching instructions and kept electrical loads below operating limits at all power lines and substations. The batteries demonstrated dispatch predictability and consistency, sending electricity to correct locations at correct times during nearly 99% of events.

PG&E expanded Sunrun's initial participation from 600 customers to more than 1,000 during the enrollment period due to customer interest. Participating Sunrun customers received $150 per battery for sharing stored solar energy, while Sunrun received compensation for coordinating battery dispatches.

Sunrun operates more than 217,000 residential battery systems across the United States. PG&E Corporation (NYSE: PCG) serves more than 16 million people across 70,000 square miles in Northern and Central California.

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