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Sunrun reports 745 MW peak home-battery dispatch on October 6

The October 14 release describes earlier California dispatches with Tesla. Peak power is not total energy, household savings or a promise of continuous supply.

By Greener Numbers Editorial Team · Published October 14, 2026 · Updated 10/14/2026

Sunrun published an October 14, 2026 release reporting combined home-battery dispatches with Tesla into California's electricity grid. It reports 669 megawatts of peak power on October 5 and 745 megawatts on October 6. The announcement is new today; the dispatch events occurred earlier in the month.

According to Sunrun, the batteries were discharged during multi-hour evening peak periods at the request of the California Energy Commission and utilities during a prolonged heat wave. The figures are peak power in megawatts, not total energy in megawatt-hours. They do not establish how long the fleet sustained the stated peak.

The company says October 5 was the first time this year that the Demand Side Grid Support and Emergency Load Reduction programs called concurrent dispatches across participating investor-owned utility territories. It says the DSGS calls on both evenings followed day-ahead locational marginal prices above USD 200 per megawatt-hour. That trigger is a wholesale market condition, not a household retail electricity rate.

Sunrun compares the 745 MW peak with enough power for all households in San Francisco and San Jose during peak hours. That is the company's scale comparison, not evidence that those households were physically supplied only by these batteries or that the fleet could do so continuously. No independently audited energy-delivery or household savings figure is supplied in the release.

The release compares the October dispatches with 580 MW on September 9, 2026 and 539 MW on July 29, 2025. Sunrun says it alone has more than 120,000 residential batteries enrolled to support California's grid. Enrollment is not the same as every battery being available at full output during every event.

Sunrun also discusses a separate Google-funded project with Tesla, Everyday Electric and PG&E focused on the San Jose area, with initial dispatching expected this month. That remains a planned milestone in this release. Battery availability, customer participation, program rules and dispatch needs can change future performance; the observed peak report is not a guarantee of blackout prevention or a fixed financial return.

Official source: investors.sunrun.com ↗