Existing Buildings (Washington)
No matter the size or type of your business, Energy Trust offers a variety of incentives for qualifying natural gas upgrades. Incentives may help lower your upfront costs and make energy-efficient improvements more affordable. These upgrades can deliver long-term energy savings, lower operating costs and improve employee and customer comfort. Energy savings often pay for improvements in just a few years, helping you achieve a faster return on your investment.
Incentives are available for commercial firm and interruptible sales customers served on rate schedules 1, 3, 41 and 42.
Project Examples

Retail
Project Type: Roof insulation
Project Cost: $67,200
Standard Incentive: $17,500
Bonus Incentive: $17,500
Annual Savings: 9,000 therms

School
Project Type: Modulating Boiler Burner
Project Cost: $28,500
Incentive: $3,800
Annual Savings: 1,500 therms
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Check your eligibility.
Read More >Energy Trust provides cash incentives to businesses for energy-efficiency and renewable energy projects. To qualify, you must:
- Have a commercial, industrial or institutional facility project site in Washington served by
NW Natural. Washington customers are eligible for gas incentives only. Additional requirements may apply.
- Have a commercial, industrial or institutional facility project site in Washington served by
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Find a trade ally contractor.
We can help you get started.
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Install equipment that meets the requirements listed in the Washington Existing Buildings Application.
Confirm equipment requirements here.
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Submit documentation.
Download Application (PDF) Download Application (Excel) Download W-9
Send by Mail
Energy Trust of Oregon
Existing Buildings
811 SW 6th Ave, Suite 800
Portland, Oregon 97204Send by Email
existingbuildings@energytrust.orgSend by Fax
503.243.1154 -
Get your incentive.
Note: A post-installation verification may apply.
Equipment | Incentive |
---|---|
New Rooftop Unit with Demand Controlled Ventilation (DCV) | $29/ton |
Advanced Rooftop Controls (ARC) – Full Retrofit | $50/ton |
Infrared Radiant Heaters | $1.25-$2.25/kBtu/h input |
Commercial Gas Furnace | $7/kBtu |
Commercial Gas Condensing Tank Water Heater | $3/kBtu/h input |
Commercial Gas Tankless Water Heater < 200 kBtu/h | $165 each |
Commercial Gas Tankless Water Heater/Boiler ≥ 200 kBtu/h | $1.40/kBtu/h input |
Commercial Gas Condensing HVAC Boiler | $6.50/kBtu/h input |
Modulating Boiler Burner | To qualify, equipment must be purchased, installed and application received before 12/1/23. |
Steam Traps | $300 per steam trap |
Swimming Pool Heater | $0.90-$5/sq ft of pool surface area served by heater |
Commercial Pool Cover | $2/sq ft of pool surface area |
Commercial Laundry Washer | $65 each |
Gas-fired Automatic Conveyor Broiler | $2,000–$3,000 each |
Gas Convection Oven | $315 each |
Gas Combination Oven | $750 each |
Gas Rack Ovens | $1,500–$1,750 each |
Gas Steam Cooker | $2,000 each |
Commercial Vent Hood Retrofit with DCV | $750/controlled motor hp |
Pre-Rinse Spray Valve | $30 each |
Retrofit Doors on Freezers or Refrigerated Cases | $100-$300/linear ft of door |
New Cooler Cases with Doors | $35/linear ft of door |
Attic Insulation | To qualify, equipment must be purchased, installed and application received before 12/1/23. |
Roof Insulation | To qualify, equipment must be purchased, installed and application received before 12/1/23. |
Wall Insulation | To qualify, equipment must be purchased, installed and application received before 12/1/23. |
Commercial Pipe Insulation | $10/linear ft |
Ready to apply for standard incentives? Download application forms. If you need guidance, just ask your trade ally contractor for assistance.
Custom Incentives
Energy Trust offers custom incentives for larger, more complex projects. Eligible participants can receive up to $75,000 per site, per year for qualifying projects. Learn more about custom incentives >
Incentives are subject to funding availability and may change.
Incentives also available for businesses located in Southwest Washington.