Georgia Power offers tips, tools and resources for customers Set It For the Season – Keep thermostats to 78 degrees and use fans to keep you feeling cooler. Every degree higher on your thermostat can result in a 3-4% decrease in energy use. Let it Flow – Change standard air filters once a month, or pleated filters once every three months. A clogged filter makes your AC work harder, increases wear on your unit, and uses more energy. Ensure air returns and vents are clear and air can circulate. Chill-Out with ...