Texas Grid Breaks Records Twice in One Week as Triple-Digit Heat Tests Frisco Homes
- Jul 24
- 4 min read
Updated: Jul 26
FRISCO, TEXAS: The Texas power grid rewrote its own record book twice in 48 hours this week. Demand on the ERCOT grid peaked at roughly 87,400 megawatts Tuesday, July 21, then surged past 91,000 megawatts Wednesday afternoon as triple-digit temperatures blanketed the state, according to ERCOT data reported by multiple outlets. Both figures crushed the previous all-time record of 85,508 megawatts, set August 10, 2023.
The Grid Held, Without a Conservation Call
Despite historic demand, ERCOT reported the grid operated under normal conditions all week, with capacity comfortably above demand and no emergency alerts issued. Solar generation set its own records, supplying more than a third of midday capacity, while battery storage discharged heavily at sunset to bridge the evening peak, according to grid data cited by energy analysts. It is a very different picture from the near-misses of 2023.
Your AC Is Running a Marathon
For Frisco homeowners, the record demand is really 100,000 individual stories of air conditioners running 12-plus hours a day. This is the week systems fail. The basics matter more than ever: replace filters monthly during peak season, keep condenser coils clear of debris, and do not wait on a system that is cooling weakly, service calls in a heat wave book out fast. A struggling 15-year-old unit limping through 105-degree afternoons is a replacement conversation, not a repair one.
The Attic Is Where Bills Are Won and Lost
North Texas attics can exceed 140 degrees in this weather, and inadequate insulation or ventilation forces your system to fight that heat all day. Radiant barriers, proper soffit-and-ridge airflow, and sealing duct leaks are the unglamorous upgrades that pay for themselves fastest in a summer like this one. Smart thermostat discipline helps too: pre-cooling in the morning and easing setpoints from 3 to 7 p.m., when grid demand and time-of-use prices peak, trims the bill without sacrificing comfort.
Watch the Bill, Not Just the Thermostat
Record grid demand eventually shows up on paper. Fixed-rate electricity plans shield households from wholesale spikes, but anyone on a variable or indexed plan should check their terms this month. And with ERCOT's own summer forecast warning that peak demand could keep climbing in the years ahead as the region grows, treating energy efficiency as a home-value investment, not a chore, is the long-term play.
Why It Matters
What I find remarkable is not that Texas set a record, it is that the grid absorbed it quietly. That resilience is part of the infrastructure story that lets a region like ours keep adding rooftops by the thousands. But every one of those rooftops has an attic, an AC unit, and an electric bill, and this is the week they all got tested. Take care of the house that takes care of you; August is not going to be gentler.
By Albert Angarita · The Frisco News
Albert is a licensed Texas REALTOR® serving Frisco and North Texas. Buying, selling, or relocating? Work with Albert at Texava Real Estate.
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