High Impact

• Electric heat. Most heating needs are at night when it is coldest. Portable space heaters should be used as little as possible during on-peak hours.
• Electric water heater. You can install a timer that limits water heating to off-peak hours. Most tanks store enough hot water for on-peak use.
• Electrically heated spa, hot tub or pool. You can install a timer that limits hot tub, spa or pool heating to off-peak hours.
• Other large users of electricity. You can shift use of other large electricity users, such as electric welding equipment, commercial painting equipment and high-intensity industrial lighting.

Moderate Impact

• Central air conditioner. Most air conditioning is used on-peak (high-cost times). Limit use during on-peak hours and cool during off-peak hours.
• Dehumidifier, outdoor lights, pumps. Install plug-in or hard-wired timers on outdoor lights, pumps, dehumidifiers and other large appliances.
• Electric clothes dryer. Do laundry in off-peak hours.
• Electric range. Bake and cook in off-peak hours.

Low/No Impact

• Household lighting
• TV, computer, electronics
• Refrigerators and freezers
• Small appliances
• Clothes washer (unless you have an electric water heater)
• Gas heat
• Gas water heater
• Microwave oven

Note: Appliances that consume the same amount of electricity day or night cost slightly less on Time-of-Use.

How to Tell if You Have a Gas or Electric Water Heater