NW Natural (Gas) - Residential Energy Efficiency Rebate Program (Washington)

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Last modified on February 12, 2015.

Financial Incentive Program

Place Washington

Name NW Natural (Gas) - Residential Energy Efficiency Rebate Program
Incentive Type Utility Rebate Program
Applicable Sector Residential
Eligible Technologies Boilers, Building Insulation, Caulking/Weather-stripping, Duct/Air sealing, Equipment Insulation, Furnaces, Water Heaters, Windows, Tankless Water Heaters
Active Incentive Yes

Implementing Sector Utility
Energy Category Energy Efficiency Incentive Programs
Amount Air/Duct Leakage Test: $35

Air/Duct Sealing: 50% of cost
Duct Insulation: 50% of cost
Windows: $2.25 (U-Value 0.26 - 0.30) or $3.50/sq. ft. (U-Value 0.25 or less)
Window Installation Bonus: $100
Attic/Ceiling Insulation: $0.25/sq. ft.
Floor/Wall Insulation: $0.30/sq. ft.
Knee wall/Rim Joist Insulation: $0.30/sq.ft.
Trade Ally Contractor Insulation Installation Bonus: $150
Boiler Pipe Insulation: $0.50/ln. ft.
Furnace: $100
Direct Vent Unit Heater/Fireplace: $100 - $250
Boiler: $200
Water Heater: $35 or $150 (gas) or $200 (tankless)

Equipment Requirements Varies by efficiency measure; a list of equipment efficiency requirements is located on the program web site

Furnace: 90% AFUE or greater
Direct Vent Unit Heater: 80% AFUE +
Boiler: 88% AFUE +
Tankless Water Heater: .80 EF or better
Storage Water Heater: .62 - .66 EF for $35 incentive; .67 EF or greater for $150 incentive

Installation Requirements Must be installed by Energy Trust contractor or another licensed contractor in Washington.

Air Sealing: minimum 300 CFM50 reduction
Duct Improvements: Minimum 150 CFM50 reduction and a minimum of 50 percent reduction in duct leakage. Existing insulation must be R-2 or less; insulate to R-11.

Maximum Incentive Air Sealing: $275

Duct Sealing: $325
Duct Insulation: $100

Program Administrator Energy Trust of Oregon
Website http://www.energytrust.org/washington
Date added to DSIRE 2009-02-11
Last DSIRE Review 2012-12-05
Last Substantive Modification
to Summary by DSIRE

References DSIRE[1]


Energy Trust of Oregon administers energy efficiency rebate programs for both residential and commercial customers of NW Natural in Washington. Energy Trust is awarding the rebates and providing resources and technical assistance to interested customers. To be eligible for the residential rebate program, customers must own a home in Washington and the home must primarily be heated with gas. A variety of energy efficiency improvements are eligible for rebates, including, insulation, windows, air and duct sealing, tankless water heaters, and furnaces. After completing weatherization measures (insulation and sealing), customers can receive a $100-$150 bonus cash incentive. With the exception of water heaters, floor and ceiling insulation, all equipment must be installed by an Energy Trust contractor or a Washington-licensed contractor. For more information on efficiency requirements and exact rebate amounts, see the Washington Incentive Grid.

Incentive Contact

Contact Name Home Energy Solutions
Department Energy Trust of Oregon

Address http://www.energytrust.org/washington

Place Portland, Oregon
Zip/Postal Code 97204
Phone (866) 368-7878

Email info@energytrust.org
Website http://energytrust.org/washington

  • 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)"