NorthWestern Energy (Electric) - Residential Energy Efficiency Rebate Program (Montana)

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Last modified on February 12, 2015.

Financial Incentive Program

Place Montana

Name NorthWestern Energy - Residential Energy Efficiency Rebate Program
Incentive Type Utility Rebate Program
Applicable Sector Construction, Installer/Contractor, Residential
Eligible Technologies Building Insulation, Caulking/Weather-stripping, Comprehensive Measures/Whole Building, Dehumidifiers, Duct/Air sealing, Energy Mgmt. Systems/Building Controls, Equipment Insulation, Lighting, Pool Pumps, Programmable Thermostats, Roofs, Water Heaters, Cooking Equipment, Clothes Dryer, Doors
Active Incentive Yes

Implementing Sector Utility
Energy Category Energy Efficiency Incentive Programs
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

Equipment Requirements Much meet efficiency requirements; see incentive applications for details
Start Date 2009-01-01
Expiration Date 2013-12-31

Funding Source Montana natural gas and electric supply rates

Installation Requirements All rebate amounts shown apply to preferred contractors; rebates for most equipment are less if Self-Installing or using Non-Preferred Contractors

Maximum Incentive Lighting: Maximum of fifteen CFLs and five lighting fixtures per calendar year

Programmable Thermostat: Two units per household

Program Administrator Northwestern Energy
Date added to DSIRE 2008-11-07
Last DSIRE Review 2013-03-06
Last Substantive Modification
to Summary by DSIRE

References DSIRE[1]


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.

Incentive Contact

Contact Name Customer Service - NorthWestern
Department Northwestern Energy

Address 2 P.O. Box 1167
Place Helena, Montana
Zip/Postal Code 59624
Phone (800) 823-5995

Fax (800) 823-5885


  • Incentive and policy data are reviewed and approved by the N.C. Solar Center's DSIRE project staff.[1]


  1. 1.0 1.1  "Database of State Incentives for Renewables and Efficiency (DSIRE)"