Maintain fans and air conditioners so they’re running at the highest efficiency.
Use appropriately-sized air conditioning units for the area you’re trying to cool. Supplement your cooling system with fans that circulate the cool air. Focus cooling efforts on rooms you use frequently; don’t cool unused rooms or areas.
Look for the ENERGY STAR ratings when you’re shopping for a new air conditioner: Above 9 energy efficiency rating (EER) for room air conditioners and above 12 seasonal energy efficiency rating (SEER) for central air conditioning.
Seal and insulate air conditioning ducts.
Reduce your need for air conditioning by insulating your home and tightening window and door openings.
Close window coverings during the day to block out the sun.
