Set your thermostat between 72°F and 78°F. Each degree below 78°F increases energy consumption by about 8%. That can add up to a lot of money over a year

Inspect and clean both the indoor and outdoor AC/Heating coils. Dirt build-up on the indoor coil is the single most common cause of poor efficiency.

Have the refrigerant charge checked. If the system is overcharged or undercharged it will not work properly.

Use bath and kitchen fans sparsely when you are running the air conditioning system.

Reduce the cooling load by using cost-effective conservation measures. Examples of this include: effectively shade east and west windows; delay heat-generating activities, like dish washing or baking, until the evening on hot days.

check with your utility provider to see if they have peak use times and avoid heavy power usage during these hours.

Keep the house closed tight during the day. Don’t let in unwanted heat and humidity.

Ventilate at night either naturally or with fans.