Set your thermostat to 78°F in the summer


You can save 7-10% on your cooling costs for each degree you increase the temperature on your thermostat during the summer.

Step by step:

  • Set your "home occupied" temperature to 78°F in the summer. When you are awake and at home, the U.S. Department of Energy suggests setting your thermostat no lower than 78°F for cooling.
  • Set your "away from home" temperature. When you are away from home, set the thermostat to an energy-saving level. Setting the temperature at least 3-5°F higher in the summer is a good rule of thumb.
  • Stay comfortable. Use a fan to stay cool in warmer months.
  • Only cool the zones you occupy. If you have separate thermostats on different floors or in different areas, adjust the thermostat to avoid wasting energy in the area you are not using.
  • Program it. Consider installing a programmable thermostat for added convenience.

Go the extra mile: To save even more energy, set your thermostat at least 3-5°F higher in the summer when you're asleep.

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Tip Details

Save up to $210 per year

Offers and Incentives:

CPS Energy now has even more options to help you to manage your energy use! With My Thermostat Rewards, you can:
  • Receive a free, installed programmable thermostat ($300 value) from CPS Energy, or
  • Purchase your own qualified Wi-Fi model, install it yourself, and get up to $115 bill credit from CPS Energy. Learn more