San Antonio’s utility, CPS Energy, warned that a stretch of extreme heat beginning Thursday could push daytime temperatures past 100 degrees Fahrenheit, with heat‑index values even higher. The utility labeled Thursday a “yellow day,” its term for a peak‑demand period when the power grid faces its greatest load.

What residents can do

CPS Energy is asking customers to raise their thermostats a few degrees during the critical window of 3 p.m. to 7 p.m. This modest adjustment can reduce the collective demand of millions of air‑conditioning units operating simultaneously. In addition, the utility recommends postponing energy‑intensive tasks such as running the laundry, dishwasher, and other large appliances until after the peak window.

Why it matters

When air‑conditioning units run at full capacity, the strain on the grid can lead to reliability concerns, including potential brownouts or the need for emergency power purchases. By spreading out usage, residents help keep the system stable and may avoid higher electricity rates that can result from peak‑demand surcharges.

Potential savings

Beyond supporting grid stability, these conservation steps can lower individual utility bills. CPS Energy notes that even a small temperature increase—say, two degrees—can cut cooling costs by several dollars per month, especially during prolonged heat waves.

How to learn more

Customers can find detailed tips for saving energy, information on the utility’s demand‑response programs, and real‑time updates on grid conditions by visiting CPS Energy’s website or contacting its customer service center.

By working together, San Antonio households can help ensure reliable power throughout the hottest days of the season while also keeping more money in their pockets.

Original reporting: KTSA News/Talk (San Antonio) — read the source article.