ERCOT Credits Rooftop Solar With Preventing Three Rolling Blackouts During February 2026 Heat Event

The Electric Reliability Council of Texas (ERCOT) released an after-action report crediting distributed rooftop solar generation with preventing three separate rolling blackout events during an unexpected late-February 2026 heat surge across the state. Afternoon temperatures reached 98–102°F across the Dallas–Fort Worth and Houston metro areas, driving record February demand exceeding 73 GW. At peak, ERCOT's grid operations team reported that approximately 4.8 GW of distributed solar generation — primarily from the estimated 850,000 residential and commercial rooftop installations across Texas — offset what would have been a 6.2 GW supply shortfall after two utility-scale gas peaker units experienced unplanned outages. The distributed nature of the resource proved critical: unlike centralized plants, rooftop solar cannot be tripped by a single failure point. ERCOT's Distributed Energy Resource (DER) visibility program, expanded in 2024, gave operators real-time estimates of rooftop solar output for the first time during a high-stress event. The report recommends accelerating residential solar permitting timelines across Texas municipalities and calls for legislation enabling ERCOT to formally include aggregated DER capacity in reserve margin calculations. Texas installed approximately 3.2 GW of new residential solar in 2025, with no statewide net metering policy but with most utilities offering some form of avoided-cost credit.