Skip Navigation

The U.S. Department of Energy and the North Carolina Clean Energy Technology Center are excited to announce that a new, modernized DSIRE is under construction. The new version of DSIRE will offer significant improvements over the current version, including expanded data accessibility and an array of new tools for site users. The new DSIRE site will be available in December 2014. Staff are currently working hard on the new version of DSIRE but are also maintaining the content of the current version of DSIRE. Thank you for your continued support and patience during this transition. We hope you are as excited for December as we are!

US Department Energy Efficiency and Renewable Energy
IREC North Carolina Solar Center
Home Glossary Links FAQs Contact About Twitter    Facebook
South Dakota

South Dakota

Incentives/Policies for Renewables & Efficiency

Printable Version
Otter Tail Power Company - Residential Energy Efficiency Rebate Program   

Last DSIRE Review: 11/15/2012
Program Overview:
State: South Dakota
Incentive Type: Utility Rebate Program
Eligible Efficiency Technologies: Water Heaters, Furnaces , Boilers, Heat pumps, Energy Mgmt. Systems/Building Controls, Thermal Storage Technologies, Demand Control Unit
Eligible Renewable/Other Technologies: Geothermal Heat Pumps
Applicable Sectors: Residential
Amount:Electric Water Heater: $150 - $300; or $20/kw reduced
Thermal Storage Unit: $20 - $40/kW
Residential Demand Control: $7-a-month
Air-Source Heat Pump: $160/ton
Geothermal Heat Pump: $350/ton
Eligible System Size:Electric Water Heater: must be 80 gallons or larger
Equipment Requirements:Electric Water Heater: minimum efficiency rating of 90%
Air Source Heat Pump: varies depending on system type
Geothermal Heat Pump: minimum COP of 3.1 - 4.1 depending on type
Installation Requirements:Electric Water Heater: must be installed on an off-peak rate
Thermal Storage Unit: must be installed on the deferred-load, fixed-time-of-delivery, or RDC rates (rates 195/197, 301/302/303, 241)
Residential Demand Controller: customers must be on the RDC rate (rate 241)
Web Site:

Otter Tail Power Company offers incentives to all residential customers in South Dakota to install energy efficient equipment in residences. Rebates are available for geothermal and air source heat pumps and electric water heaters. In addition, Otter Tail Power offers rebates for thermal storage technologies and residential demand control units, which help the utility minimize peak time energy use. There are a variety of different standards that must be met in order to qualify for these rebates; customers should check the program web site for details. Receipts must be turned in with the program application in order to qualify for the rebate.

  Customer Service - OTPC
Otter Tail Power Company
PO Box 496
215 S Cascade Street
Fergus Falls, MN 56538-0496
Phone: (800) 257-4044
Phone 2: (218) 739-8200
Web Site:
NCSU - home
Disclaimer: The information presented on the DSIRE web site provides an unofficial overview of financial incentives and other policies. It does not constitute professional tax advice or other professional financial guidance, and it should not be used as the only source of information when making purchasing decisions, investment decisions or tax decisions, or when executing other binding agreements. Please refer to the individual contact provided below each summary to verify that a specific financial incentive or other policy applies to your project.

While the DSIRE staff strives to provide the best information possible, the DSIRE staff, the N.C. Solar Center, N.C. State University and the Interstate Renewable Energy Council, Inc. make no representations or warranties, either express or implied, concerning the accuracy, completeness, reliability or suitability of the information. The DSIRE staff, the N.C. Solar Center, N.C. State University and the Interstate Renewable Energy Council, Inc. disclaim all liability of any kind arising out of your use or misuse of the information contained or referenced on DSIRE Web pages.

Copyright 2014 - 2015 North Carolina State University, under NREL Subcontract No. XEU-0-99515-01. Permission granted only for personal or educational use, or for use by or on behalf of the U.S. government. North Carolina State University prohibits the unauthorized display, reproduction, sale, and/or distribution of all or portions of the content of the Database of State Incentives for Renewables and Efficiency (DSIRE) without prior, written consent.