How to Lower Your Electric Bill During a North Carolina Summer

July in North Carolina means heat, humidity, and air conditioners running almost nonstop. If you’ve noticed a high electric bill this summer, you’re not alone—cooling costs rise sharply this time of year. The good news? A few simple changes can make a big difference in comfort and efficiency.

Here are our top HVAC energy‑saving tips to help you lower cooling costs without sacrificing comfort.

1. Set Your Thermostat for Maximum Efficiency

The U.S. Department of Energy recommends setting your thermostat as high as comfortably possible during summer. In most North Carolina homes, that’s around 76–78°F when you’re home and slightly higher when you’re away.

A programmable or smart thermostat can make this effortless by automatically adjusting temperatures throughout the day.

2. Seal Air Leaks Around Your Home

Cool air escapes fast through small gaps and cracks. Common leak points include:

• Windows and doors
• Attic access panels
• Ductwork joints
• Recessed lighting

Sealing these leaks can significantly lower energy waste and help your home stay cooler with less AC runtime.

3. Keep Coils Clean for Better Performance

Dirty evaporator or condenser coils force your AC to work harder, driving up energy usage. Summer pollen, yard debris, and dust buildup are especially common in the Charlotte and Gaston County area.

Clean coils improve heat transfer, reduce strain on the system, and help lower monthly energy bills.

4. Replace or Clean Your Air Filter Regularly

A clogged air filter restricts airflow and increases energy consumption by up to 15%. During peak cooling season, we recommend checking your filter monthly and replacing it at least every 1–2 months.

5. Schedule Routine HVAC Maintenance

Annual tune-ups are one of the most effective ways to improve efficiency and prevent breakdowns—especially during July’s heat. A professional inspection includes checking refrigerant levels, cleaning coils, testing components, and ensuring your system is running at peak performance.

6. Use Fans to Reduce AC Load

Ceiling fans don’t actually cool the air, but they make you feel cooler by circulating air. This allows you to raise your thermostat by a few degrees without feeling uncomfortable.

7. Keep Sunlight Out

Direct sunlight can heat a room by several degrees. Close blinds during the hottest part of the day, especially on west‑ and south‑facing windows, to lighten the load on your cooling system.

Let Precision Climate Help You Save This Summer

As a veteran-owned HVAC company serving Mt Holly, Gaston County, and the Greater Charlotte area, we’re here to help you get the most from your air conditioning system. Whether you need a tune-up, repair, or full system evaluation, we’ll make sure your home stays cool and efficient all summer long.

Want lower cooling bills? Schedule your HVAC maintenance visit today.