San Antonio- As another round of triple-digit temperatures settles over Texas, the state’s electric grid is facing one of its biggest tests of the summer. Electricity demand is expected to remain near record levels today and tomorrow as millions of Texans rely on air conditioners to combat the dangerous heat.
The Electric Reliability Council of Texas (ERCOT), which manages the state’s independent power grid, reported that electricity demand reached a new all-time record this week, surpassing 91,000 megawatts as soaring temperatures stretched across much of the state. The record reflects the tremendous strain placed on the grid as homes, businesses, schools, and hospitals work to stay cool.
Despite the historic demand, ERCOT officials say the grid remains stable and has sufficient power generation available to meet expected electricity needs. No rotating outages or mandatory conservation orders have been issued, although the agency has placed the grid under a Weather Watch due to the prolonged extreme heat.
A Weather Watch is a routine notification used when weather conditions could lead to unusually high electricity demand or reduced power generation. It is not an emergency declaration, but it allows grid operators to closely monitor conditions and coordinate available resources if demand continues to climb.
In San Antonio and across South Texas, afternoon highs are expected to exceed 100 degrees, with heat index values climbing well above that. Energy experts say air conditioning accounts for the overwhelming majority of the increase in electricity usage during these prolonged heat waves.
Residents can help reduce strain on the grid by adjusting thermostats a few degrees higher when away from home, limiting the use of major appliances during the late afternoon and early evening, and keeping blinds or curtains closed to reduce indoor heat gain. Even small reductions in electricity use during peak hours can help ease overall demand.
Texas has invested heavily in new power generation and battery storage in recent years, significantly increasing the grid’s ability to handle periods of extreme demand. Solar generation has also become an increasingly important source of electricity during hot summer afternoons when power consumption reaches its highest levels.
While forecasters expect electricity demand to remain elevated through tomorrow, ERCOT says it continues to have adequate reserves available and does not anticipate widespread service interruptions if current conditions continue.
With the hottest part of summer still ahead, state officials encourage Texans to stay hydrated, limit outdoor activities during the afternoon, check on elderly neighbors, and remain aware of local weather advisories as the prolonged heat continues across the Lone Star State.

