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

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Last modified on February 12, 2015.

Financial Incentive Program

Place Montana

Name NorthWestern Energy (Gas) - Residential Energy Efficiency Rebate Program (Montana)
Incentive Type Utility Rebate Program
Applicable Sector Construction, Installer/Contractor, Residential
Eligible Technologies Boilers, Building Insulation, Comprehensive Measures/Whole Building, Equipment Insulation, Furnaces, Heat recovery, Programmable Thermostats, Water Heaters
Active Incentive Yes

Implementing Sector Utility
Energy Category Energy Efficiency Incentive Programs
Amount Programmable Thermostats: $30/unit; maximum of 2 per account

Gas Heating Equipment Diagnostics, Repair, and Maintenance: $60 - $75
Boiler: $160-$200
Furnace: $108-$135
Water Heater: $80-$100
Water Tank Insulation: $7/unit
Room Heater: $120-$150/unit
Boiler Controls: $232-$290/unit
Pipe Insulation: $1.13-$1.41/ln. ft.
Building Insulation: $0.22 - $0.62 per sq. ft.
Northwest Energy Star Manufactured Home (Gas): $0.25/sq. ft.

Equipment Requirements Gas fired technology rebates are to replace standard technologies with efficiencies specified on the program application

Diagnostics, Repair, and Maintenance rebates can only be collected once every 5 years

Start Date 2009-01-01
Expiration Date 2012-11-30

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

Last DSIRE Review 2012-08-08

Incentive Source NorthWestern


NorthWestern Energy offers a variety of rebates for residential customers to make energy efficiency improvements in their existing homes. Customers who purchase an Energy Star programmable thermostat from a local retailer and install it in an eligible home can receive a $30 mail-in rebate. Details are located in the Programmable Thermostat Rebate Application.

The utility sponsored Insulation Rebate program is also offered for Montana's NorthWestern Energy customers. In addition, Northwestern Energy's E+ program offers rebates for a variety of gas heating equipment improvements including the installation of boilers, furnaces, and equipment insulation through the Natural Gas Savings for the Home Program. There are also many rebates available for different types of water measures and insulation improvements, for both electric and natural gas space and water-heating. Customers building a new home are only eligible for boiler, furnace, boiler controls, and manufactured home incentives.

Incentive Contact

Contact Name Northwestern Energy
Department Customer Service

Address 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.  "Database of State Incentives for Renewables and Efficiency (DSIRE)"