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time of use


Impact of Shifting Certain Appliances
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

Gas Water Heater
Gas water heater
Gas water heaters have a large exhaust pipe (metal or plastic) on top of the unit going from the heater to a chimney or out the side of the house.

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Electric Water Heater
Electric water heater
Electric water heaters do not have an exhaust pipe — just small water pipes running into the top of the unit.

 

   
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