How Your AC Impacts Your Electric Bill (And How to Save Energy)

When summer heat kicks in, your air conditioner becomes one of the hardest-working systems in your home—and one of the biggest drivers of your electric bill. Understanding how your AC uses energy (and how to run it efficiently) can save you money while keeping your home comfortable.

Why Your AC Uses So Much Electricity

Air conditioners work by removing heat and humidity from your home. That process requires a lot of energy, especially when:

• Outdoor temperatures are high

• Your system runs for long periods

• Your home isn’t well insulated

The harder your AC has to work, the more electricity it consumes—and the higher your bill climbs.

Simple Ways to Lower Your Cooling Costs

You don’t have to suffer in the heat to save money. Small adjustments can make a noticeable difference:

1. Set Your Thermostat WiselyAim for around 78°F when you’re not home. Raising it just a few degrees when you’re away can significantly cut energy use. Raising your thermostat more than 4 to 5 degrees higher than your normal temperature setting when the outdoor temperature or humidity is high, can create high consumption for your ac to drop the temperature back to your normal setting each day/evening. 

2. Use a Programmable or Smart ThermostatThese automatically adjust temperatures slowly based on your schedule, preventing unnecessary cooling.

3. Keep Sunlight OutClose blinds or curtains during the hottest part of the day to reduce heat gain.

4. Seal Air LeaksCool air escaping through gaps around doors and windows forces your AC to work harder.

5. Use Ceiling FansFans help to circulate air, making rooms feel cooler so you can raise the thermostat slightly.

Keeping Your AC Running Efficiently

Regular maintenance is key to both performance and energy savings.

Change Your Air Filter Regularly

A dirty filter restricts airflow, making your system work harder and use more energy. Check it monthly and replace as needed.

Keep the Outdoor Unit Clear

Leaves, dirt, and debris can block airflow. Make sure there’s at least 2 feet of clearance around the unit.

Schedule Professional Maintenance

Annual tune-ups help catch small issues before they turn into costly repairs and keep your system running efficiently.

Should You Turn Off Your Humidifier When Running AC?

Yes—if you have a whole-home humidifier, it’s best to turn it off during cooling season.

Your air conditioner already removes humidity from the air. Running a humidifier at the same time:

• Works against your AC

• Increases energy usage

• Can make your home feel warmer and less comfortable

In summer, you want less humidity—not more.

Final Thoughts

Your air conditioner doesn’t have to send your electric bill soaring. With a few smart habits and regular maintenance, you can stay cool, reduce energy use, and extend the life of your system.

If your AC seems to run constantly or your energy bills are unusually high, it may be time for a professional inspection.

Contact Virginia Air Heating and Cooling today to learn how we can help you save money, improve your system’s efficiency, and stay comfortable all summer long.