Water heater rebates

Save with discounted off-peak prices and water heater rebates

Heating your water has never been so affordable! Get a generous rebate when you install an electric water heater and enroll in one of our off-peak programs.

Eligibility and details

• Eligible water heaters require proof of a minimum of 90% efficiency (uniform energy factor, or UEF, rating of .90 or higher).
• Rebates require enrollment in one of our off-peak programs. Eligible programs include Deferred Load, Dual Fuel, Residential Demand Control, or Controlled Water Heating—including our water heating credit option, which eliminates the need for a second meter and saves on wiring costs.
• For new off-peak installations, new specifically refers to water heating loads. If you have an existing off-peak rate in place for space heating, you can qualify for a rebate by adding a water heater to that rate.
• Both residential and commercial rebates are available.

Available rebates

Residential and light-duty commercial rebates

• $400 rebate: Qualifying 80-gallon or larger water heater, installed on a new off-peak service.
• $200 rebate: Qualifying 80-gallon or larger water heater, installed as a replacement on an existing off-peak service.
• $200 rebate: Qualifying 50- 79-gallon water heater, installed on a new off-peak service.
• $100 rebate: Qualifying 50- 79-gallon water heater, installed as a replacement on an existing off-peak service.

Heavy-duty commercial rebates

• $50-per-kilowatt rebate: Install 12 kilowatts or more of efficient heavy-duty commercial electric water heating with a minimum of 120 gallons of storage. Maximum rebate is $5,000.

Apply for your rebate

Fill out the rebate form and attach all required documentation, then mail it to: 

Rebates
Otter Tail Power Company
P.O. Box 496
Fergus Falls, MN 56538

2024 water heater rebate form

Please allow 6-8 weeks for your rebate check to arrive.