14 Ways to Reduce Your Electricity Usage in Texas

Every degree above 78°F saves roughly 6–8% on cooling costs. Set it to 85°F when away from home. A programmable or smart thermostat automates this so you never forget, and many Texas utilities — including Oncor, CenterPoint, and AEP Texas — offer rebates of $50–$150 for upgrading to a Wi-Fi-enabled model. In the Dallas–Fort Worth heat dome where July highs regularly top 100°F, this single change can save $20–$40 a month.

Ceiling fans create a wind-chill effect that lets you set the AC 4°F higher without losing comfort. In summer, ensure blades rotate counterclockwise to push air down. Remember—fans cool people, not rooms, so turn them off when you leave. This matters most in humid Gulf Coast cities like Houston and Corpus Christi, where moving air dramatically improves perceived comfort.

Texas attics can exceed 140°F in July and August. Adding R-38 to R-49 insulation and sealing gaps around doors, windows, and ductwork can cut cooling loads by 20%. Weatherstripping is an inexpensive weekend project with immediate payoff on your next bill. In older homes common across San Antonio and Austin, radiant barrier foil in the attic can reflect up to 97% of radiant heat away from living spaces.

Heating water accounts for about 90% of a washing machine's energy use. Switching to cold-water detergent saves $50–$100/year. Running only full loads in both washer and dishwasher reduces cycles and water-heating demand — especially valuable on Texas time-of-use plans where hot water heating shifted to overnight free-energy hours can drop your effective rate dramatically.

Electronics drawing power while "off" can add 10% to your bill. Plug TVs, gaming consoles, and chargers into smart power strips you can cut with one switch. Smart strips with occupancy sensing shut off automatically when you leave the room. In a state where the average household uses over 1,100 kWh a month, killing phantom loads can reclaim 100+ kWh monthly.

LEDs use 75% less energy and last 25× longer than incandescent bulbs. Replacing 20 bulbs saves about $100/year. Texas summers mean lights also produce less heat, reducing the cooling load — every watt of lighting avoided is roughly a third of a watt your AC no longer has to remove. Look for ENERGY STAR-rated bulbs, and check with your transmission and delivery utility (TDU) for free LED giveaway programs.

South and west-facing windows let in massive heat. Cellular shades, reflective blinds, or solar screens can cut heat gain by 40–70%, letting your AC run less. This is critical in West Texas cities like El Paso and Lubbock, where intense sun and low humidity drive daytime cooling loads. For a deeper dive, see our guide on solar screens and window treatments.

Heat pump water heaters are 2–3× more efficient than standard electric tanks. They dehumidify the surrounding air as a bonus—useful in humid Texas climates. Federal tax credits (up to $2,000 through the Inflation Reduction Act) and Texas utility rebates can offset a large share of the purchase cost, making payback often under 5 years.

Many Texas retail electric providers offer free nights, free weekends, or time-of-use plans. Running the dishwasher, laundry, and EV charging after 9 PM or on weekends can slash your effective rate. The Texas grid (ERCOT) peaks between 3–7 PM on summer weekdays, so shifting load away from those hours also helps grid reliability. Check your EFL for peak hours and use our calculator to compare plans side by side.

Texas's deregulated market means dozens of plans compete for your business, but the cheapest advertised rate isn't always the cheapest at your actual usage. A flat-rate plan may beat a bill-credit plan at 500 kWh but lose at 2,000 kWh — or vice versa. Use the EFL Bill Calculator above to test any plan at your real monthly kWh before you sign up. Texans who match their plan to their usage routinely save $300–$600 a year.

A dirty, neglected AC unit works harder and uses 15–30% more energy. Annual spring maintenance—cleaning coils, checking refrigerant, and replacing filters—keeps efficiency high before the brutal June–September cooling season. Some Texas utilities offer free or discounted tune-ups through efficiency programs, and a well-maintained system in a 100°F Texas summer is the difference between a $180 bill and a $260 bill.

An oversized central AC short-cycles and dehumidifies poorly, while an undersized one runs nonstop. If you've added insulation or windows, your old unit may no longer be the right size. Zoned mini-split systems can cool only the rooms you use, cutting consumption 20–40% in larger Texas homes. See our mini-split pros & cons guide to decide if it fits your home.

Your outdoor condenser releases heat into the surrounding air, and when that air is already scorching under the Texas sun, the unit works harder and less efficiently. Shading the condenser with a purpose-built awning, lattice screen, or carefully placed tree can lower the air temperature around it by 10–15°F and improve efficiency by up to 10%. Just keep at least 2–3 feet of clearance on all sides so airflow isn't blocked — a common mistake that actually raises bills. This is especially impactful in sun-baked regions like South Texas and the Rio Grande Valley, where afternoon temperatures routinely exceed 100°F and the unit runs nearly nonstop from June through September.

A clogged return air filter chokes your entire HVAC system, forcing the blower to work harder and reducing airflow across the evaporator coil — which can spike energy use by 5–15% and even freeze the coil on the hottest Texas afternoons. Check the return air filter monthly during peak cooling season (June–September) and replace it every 1–3 months, depending on whether you have pets, allergies, or a dusty environment common in West Texas and the Panhandle. A clean, low-resistance pleated filter (MERV 8–11) balances filtration with airflow; going too high on MERV rating can actually restrict air and raise bills. This is one of the cheapest, fastest wins in Texas — a $10–$15 filter can save $20–$40 a month when the AC is running around the clock.