7 Summer Energy Saving Tips Proven to Help Texas Homeowners

1. Master Your Thermostat Settings for Maximum Savings

When it comes to summer energy saving tips for Texas homeowners, your thermostat is the most powerful tool in your arsenal. Many of us are tempted to "crank it down" to 70°F the moment we walk through the door, but this is the fastest way to inflate your power bill.

The Department of Energy recommends setting your thermostat to 78°F when you are home and awake. We know that sounds high when the New Braunfels sun is beating down, but the math is hard to argue with: every degree you set your thermostat below 78°F increases your cooling costs by approximately 6% to 8%. If you’re keeping your home at 72°F instead of 78°F, you could be adding $50 to $80 to your monthly bill without even realizing it.

To stay comfortable at 78°F, you need to manage the "feel" of the air. High humidity makes air feel warmer than it actually is. By understanding how to reduce indoor humidity with your HVAC, you can feel perfectly comfortable at a higher temperature setting because the air is crisp and dry.

The Smart Thermostat Advantage

If you haven't upgraded to a smart thermostat yet, May 2026 is the perfect time to do it. Homeowners in Central Texas can save 10% to 15% on annual cooling costs by using a properly programmed smart thermostat. These devices learn your habits and can automatically adjust the temperature based on whether you are home, asleep, or at work.

Optimize Settings While Away

One of the biggest myths we hear is that it takes "more energy" to cool a house back down than it does to keep it cool all day. That simply isn't true. The smaller the difference between the indoor and outdoor temperature, the lower your overall bill will be.

We recommend an "away" setting of 85°F if you’ll be gone for more than two hours. If that feels too extreme, even a 4-degree adjustment (moving from 78°F to 82°F) can yield significant savings. This also helps with dehumidification and your air conditioner explained, as your system won't be cycling unnecessarily while the house is empty.

2. Block Solar Heat Gain Through Windows and Landscaping

In Texas, your windows are essentially giant heaters. Solar heat gain through glass accounts for 25% to 35% of a home’s total cooling load—and in some older homes in San Antonio or Boerne, that number can climb as high as 40%.

To fight back, you need to treat your windows like a defensive line:

• Blackout Curtains: Use medium-colored draperies with white plastic backings. These can reduce heat gain by up to 33%.
• Reflective Films: High-reflectivity window films are excellent for south and west-facing windows that bear the brunt of the afternoon sun.
• Close the Blinds: Between 10 AM and 6 PM, keep your blinds tightly closed. It might feel a bit like living in a cave, but it’s a proven way to keep your home cool this summer.

Landscaping for Long-Term Savings

Landscaping isn't just about curb appeal; it’s a vital part of your home’s cooling strategy. Planting shade trees on the south and west sides of your home can create a natural barrier against the sun.

When choosing plants, stick to native Texas species that can handle our droughts and heatwaves. Trees not only provide shade but also release moisture into the air through transpiration, which can actually lower the ambient temperature around your home’s exterior. Just remember: in Central Texas, the best time to plant these trees is between October and March to ensure they survive the following summer.

3. Maximize Efficiency with Summer Energy Saving Tips for Texas Homeowners

A neglected AC system is an expensive AC system. A well-maintained unit runs 15% to 20% more efficiently than one that hasn't been serviced. If your system is struggling to keep up, it's worth checking our spring HVAC maintenance checklist to see what might be missing.

The Power of a Clean Filter

The single most important thing you can do is change your air filter every 30 to 60 days. During a dusty Texas summer, filters clog quickly. A dirty filter restricts airflow, which can cause your evaporator coil to ice over and lead to a total system breakdown. Standard 1-inch filters are inexpensive, yet they are the primary defense against high energy bills.

Outdoor Unit Care

Your outdoor condenser unit needs room to "breathe" to reject the heat it’s pulling from your house. Maintain a 2-foot clear perimeter around the unit. Trim back shrubs, remove tall weeds, and ensure no debris is clogging the fins. For more localized advice, check out the best AC maintenance tips Austin TX homeowners use to keep their systems running in triple-digit heat.

Maintain Your Ductwork and Coils

Did you know the average Texas home loses 20% to 30% of its cooled air through duct leaks before it even reaches your living room? That’s like paying for a whole extra room of AC that you never get to feel. Professional duct sealing can pay for itself in a single summer.

Additionally, dirty coils reduce your system's cooling capacity. If your coils are coated in Texas dust, your AC has to work longer and harder to achieve the same temperature, which significantly shortens the lifespan of your AC unit.

4. Shift High-Energy Activities to Off-Peak Hours

In Texas, the "Peak Demand" hours are typically between 2 PM and 7 PM. This is when the ERCOT grid is under the most stress and when some utility plans charge the highest rates.

To save money and help stabilize the grid, move your high-energy chores to the early morning or late evening:

• Laundry and Dishwashing: These appliances generate significant heat and humidity. Running them at 3 PM forces your AC to work double-time to remove that extra heat. Wait until after 7 PM.
• Cooking: Your oven is a space heater. On triple-digit days, try outdoor grilling or using a microwave or slow cooker. This prevents the "extra heat" load that can drastically change how Texas heat and humidity affect your AC performance.
• Pool Pumps: If you have a pool, use a timer. Reducing your filtration time to six hours a day and running it during off-peak hours can save you up to 75% on pool-related electricity costs.

5. Leverage Ceiling Fans and Low-Cost Cooling Methods

Ceiling fans are a Texan’s best friend, but only if used correctly. Fans cool people, not rooms. They create a wind-chill effect that makes you feel 4 to 6 degrees cooler without actually lowering the air temperature.

Pro Tip: In the summer, ensure your fan blades are rotating counter-clockwise. This pushes a cool breeze directly down onto you. Because fans don't actually cool the air, remember to turn them off when you leave the room. Leaving a fan on in an empty room is just wasting electricity.

Banish the "Energy Vampires"

"Energy vampires" are devices that draw power even when they are turned off—think coffee makers, idling computers, and phone chargers. These can account for 10% of your home's energy use, adding $100 to $200 to your annual costs. Use power strips to flip the switch on multiple devices at once, and swap out old incandescent bulbs for LEDs, which use 75% less energy and emit almost no heat.

6. Seal Air Leaks and Upgrade Home Insulation

If your home isn't properly sealed, you're essentially trying to air condition the entire neighborhood. Small gaps around doors and windows allow hot, humid Texas air to seep in, forcing your AC to run non-stop.

Common air leak locations include:

• Gaps around window frames (use caulk)
• Space under exterior doors (use weatherstripping or door sweeps)
• Attic hatches
• Electrical outlets on exterior walls
• Plumbing penetrations under sinks

If your home is older, you might consider 3 reasons to upgrade to a high efficiency HVAC system, but even the best system can't overcome poor insulation. Adding a radiant barrier in your attic or increasing your insulation levels can significantly reduce the amount of heat that transfers from your roof into your living space.

7. Prepare for Grid Stress and Summer Power Outages

The Texas power grid has faced significant challenges in recent years. The average power outage in Texas lasts about 2.5 hours—which can feel like an eternity when it's 105°F outside.

To stay safe and save energy during grid stress:

• Build an Emergency Kit: Include battery-operated fans, ice packs, and plenty of water.
• Pre-Cool Your Home: If a storm or grid warning is issued, lower your thermostat a few degrees early in the morning so the house stays cooler longer if the power goes out.
• Stay Hydrated: Drink water and electrolytes. Your body’s ability to cool itself is your first line of defense.
• Keep it Dark: If the power goes out, keep all blinds and curtains closed to trap the cool air inside as long as possible.

A pre-summer HVAC system check is the best way to ensure your system is robust enough to handle the "cycling" that often happens during grid fluctuations.

Frequently Asked Questions about Summer Energy Saving Tips for Texas Homeowners

What is the most effective thermostat strategy for summer energy saving tips for Texas homeowners?

The most effective strategy is the "78/85 Rule." Set your thermostat to 78°F when you are home and 85°F when you are away for more than two hours. Utilizing a smart thermostat to automate these shifts and managing indoor humidity can help you stay comfortable at these higher settings. If you’re in Blanco, be sure to look for AC maintenance deals in Blanco TX to ensure your thermostat is properly calibrated.

How do ceiling fans contribute to summer energy saving tips for Texas homeowners?

Ceiling fans allow you to raise your thermostat setting by about 4 degrees without losing comfort. By creating a wind-chill effect, they help evaporate moisture from your skin, making you feel cooler. Just remember to set them to rotate counter-clockwise and turn them off when you leave the room.

When is the best time to run large appliances in New Braunfels?

The best time is during "off-peak" hours, which are typically before 2 PM and after 7 PM. Running heat-generating appliances like dryers and dishwashers during the heat of the day puts extra strain on your AC and the Texas power grid.

Conclusion

Saving energy in a Texas summer doesn't have to mean suffering in the heat. By mastering your thermostat, blocking solar gain, and keeping your HVAC system in peak condition, you can enjoy a comfortable home without the dreaded "bill shock" in July and August.

At HomeFront Heating & Air, we are proud to be the only Carrier Factory Authorized Dealer in New Braunfels. As a veteran-owned local business, we understand the unique challenges of Central Texas weather. Whether you need a precision tune-up, a smart thermostat installation, or a full system upgrade, our team is here to ensure your home remains a cool sanctuary all summer long.

Ready to take control of your summer energy bills? Schedule your professional AC maintenance today and let us help you stay cool for less.