Oncor Electric Delivery intelligence

Texas ERCOT Grid Holds Beyond 91 Gigawatts in Heat Wave – At What Cost?

July 23, 2026 · Updated July 24, 2026 · Curated by 247ignite
Advisory

Texas ERCOT Grid Holds Beyond 91 Gigawatts in Heat Wave – At What Cost?

Energy News Beat

ERCOT's grid demand hit an all-time high of 91.3 GW during a recent heat wave, surpassing the previous day's 87.5 GW and the 2023 record of 85.5 GW. Despite the surge, the grid remained stable, supported by natural gas (52.6%), solar (18.5%), and battery storage. No conservation calls or price spikes were issued.

This performance highlights the grid's resilience, achieved through years of infrastructure investment. However, sustaining this reliability will require continued enhancements as demand continues to climb.

Why it matters: ERCOT's ability to handle record demand without disruptions underscores the importance of infrastructure investments. For Oncor, maintaining grid stability will be critical as Texas' energy needs grow.

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