Sunrun announced the successful completion of its first distributed power plant dispatching season with Pacific Gas and Electric (PG E) under the Local PeakShift Power program, a key component of PG E’s Seasonal Aggregation of Versatile Energy (SAVE) initiative. The season ran from July through October 2025, following a testing phase that spanned April to June 2025. More than 1,000 Sunrun customers participated, with their storage‑plus‑solar systems exporting energy to relieve local grid constraints during peak demand periods.
During the season, the distributed power plant dispatched more than 50 times, totaling over 1,200 dispatching hours. Demand Side Analytics evaluated the program and found that Sunrun’s battery groupings followed PG E’s dispatch instructions with 99% accuracy, keeping electrical loads below operating limits on constrained lines and substations. The high precision demonstrates Sunrun’s ability to operate residential batteries as a virtual power plant (VPP) at scale.
The program’s success provides a new revenue stream for Sunrun and enhances grid reliability for PG E’s customers. By delivering location‑specific load relief, the distributed power plant helped PG E avoid or defer costly distribution upgrades. Customers received a $150 incentive per battery, reinforcing the business model that aligns homeowner benefits with grid services.
Sunrun’s platform now supports more than 217,000 residential battery systems nationwide, and the company has enrolled over 106,000 customers across 17 distributed power plant programs. Management highlighted the achievement, noting that “Sunrun’s groundbreaking program with PG E shows that distributed power plants can help communities avoid the high cost of adding more poles and wires to accommodate load growth.” The company aims to bring 10 GWh of dispatchable capacity online by the end of 2028, positioning it as a leader in the growing VPP market.
The completion of this dispatching season underscores Sunrun’s expanding role in grid services and signals a broader industry shift toward distributed energy resources. As utilities seek flexible, low‑cost solutions to manage peak demand, Sunrun’s VPP capabilities offer a scalable, customer‑centric approach that can be replicated across other markets.
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