Millions of Texans came home on July 21, turned on the lights, and cranked up the air conditioning — and in the process pushed the state's power grid into record territory.
On July 22, demand climbed even higher, underscoring how quickly extreme summer heat can strain the systems people rely on to stay safe and comfortable.
Here's what to know
According to the Houston Chronicle, which cited data from the Electric Reliability Council of Texas, or ERCOT, the state's main grid first surpassed the 85.5-gigawatt peak reached in August 2023 before hitting 91.1 gigawatts on July 22.
At the height of summer, ERCOT estimates that a single gigawatt can supply electricity to about 250,000 households.
For much of the summer, demand repeatedly stayed above the old 2023 high, sometimes for weeks. On Aug. 20 — the first 100-degree day of the year in Houston — the grid remained above that earlier benchmark from 2 p.m. to 9 p.m., a seven-hour span.
More background
Record electricity demand in Texas is closely tied to hotter weather and the growing need for indoor cooling. When temperatures rise, residents often have little choice but to run air conditioning for extended periods, sending power use and monthly bills sharply higher.
TCD Picks » Quince Spotlight
💡These best-sellers from Quince deliver affordable, sustainable luxury for all
Where can I learn more?
Texas' record demand is one example of how extreme heat and heavier electricity use are testing power grids. These articles look at the solar, battery, and grid pressures shaping reliability and electricity costs in several places.
• In Texas, solar and batteries helped ERCOT meet surging summer demand while keeping prices low.
• In California, battery storage carried the grid through a punishing heat wave.
• In Florida, solar installations are reshaping how the state adds capacity to its grid.
• For households facing higher bills, rooftop solar can cut dependence on volatile utility rates.
Get TCD's free newsletters for easy tips, smart advice, and a chance to earn $5,000 toward home upgrades. To see more stories like this one, change your Google preferences here.
