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


Incentives/Policies for Renewables & Efficiency

Printable Version
NorthWestern Energy (Electric) - Residential Energy Efficiency Rebate Program   

Last DSIRE Review: 03/06/2013
Program Overview:
State: Montana
Incentive Type: Utility Rebate Program
Eligible Efficiency Technologies: Refrigerators, Dehumidifiers, Equipment Insulation, Lighting, Heat recovery, Programmable Thermostats, Energy Mgmt. Systems/Building Controls, Caulking/Weather-stripping, Duct/Air sealing, Building Insulation, Roofs, Comprehensive Measures/Whole Building, Pool Pumps, Personal Computing Equipment, Cooking Equipment, Clothes Dryer, Doors
Applicable Sectors: Residential, Construction, Installer/Contractor
Amount:Proper Sizing AC or Heat Pump: $10/unit
Programmable Thermostat: $0.005-$0.006/sq. ft. controlled
Light Colored Shingles: $30/home
Door Foam Core: $10-$20/door
Duct Sealing: $350
Outlet Gasket: $5/home
Canned Light Sealing: $10 - $12/can
Building Insulation: $0.32-$1/sq. ft.
Refrigerator/Freezer: $15/unit
Clothes Dryer: $30/unit
Weather Stripping and Door Sweep: $20
Pool Pump Timer: $25
Maximum Incentive:Lighting: Maximum of fifteen CFLs and five lighting fixtures per calendar year
Programmable Thermostat: Two units per household
Equipment Requirements:Much meet efficiency requirements; see incentive applications for details
Installation Requirements:All rebate amounts shown apply to preferred contractors; rebates for most equipment are less if Self-Installing or using Non-Preferred Contractors
Funding Source:Montana natural gas and electric supply rates
Expiration Date:12/31/2013 (current application)
Web Site:

NorthWestern Energy offers a variety of rebates for residential customers to make energy efficiency improvements in their existing homes. Customers who purchase or implement energy efficient appliances, lighting, HVAC services, insulation and programmable thermostats are eligible for prescriptive rebates from NorthWestern. There are also many rebates available for both electric and natural gas space and water-heating. Details for all rebate offerings are found on the program web site listed above.

In addition to the home improvement rebates listed above, The E+ New Homes Program offers rebates for new home construction that incorporates certain energy efficiency measures. Members can receive rebates in the new home program in three ways: By installing Energy Star® light fixtures and CFLs, by building a home that qualifies under the NorthWestern Energy Star Homes standards, or by including other specific energy efficiency measures in the new construction.

  Customer Service - NorthWestern
Northwestern Energy
P.O. Box 1167
Helena, MT 59624
Phone: (800) 823-5995
Fax: (800) 823-5885
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.