Washington building energy incentive programs
Every program we track that reaches a Washington commercial or public building, including the federal ones that reach every state. Each figure is read from our sourced registry, and each program links to the administrator’s own page, which is always the authority on a current round.
14 programs, of which 4 have a round open today and 4 are not currently open. 2 are federal and reach every state.
IRS / U.S. Treasury
Pays for the retrofit measures.
Post-OBBBA window for solar starting construction after July 4, 2026 closes placed in service by December 31, 2027
Verified against source on 2026-09-16. 26 U.S.C. §48E: rate (a)(2)(A)(ii)(I), FEOC (b)(6) and (c)(3), elective-payment domestic content (d)(5), termination (e)(4)
Washington Department of Revenue
Pays for the retrofit measures.
1-100 kW AC exemption, RCW 82.08.962(1)(e) closes installation completed by December 31, 2029
Verified against source on 2026-09-16. RCW 82.08.962 (sales tax; use-tax twin at RCW 82.12.962)
WA Department of Commerce (paid through utilities)
Pays for the retrofit measures.
Early Adopter window (50,001-90,000 sf band) closes June 1, 2027 for the 50,001-90,000 sq ft band (larger bands have closed), or until the $75M pool is exhausted. $75M pool; about $59M remaining plus $16M reserved (July 2026)
- $2/sf at the 90,000 sf open-band ceiling (derived): $180,000
Verified against source on 2026-07-21. WA Commerce Tier 1 Early Adopter Incentive
WA Department of Commerce (paid through utilities)
Pays for the retrofit measures.
Early Adopter window closes July 1, 2027, or until the $150M pool is exhausted. $150M pool; about $144M remaining (July 2026)
- Base $0.30/sf to the 50,001 sf ceiling (derived): $15,000
Verified against source on 2026-08-06. WA Commerce Tier 2 Early Adopter Incentive
Avista
Pays for the retrofit measures.
Verified against source on 2026-08-29. Avista business rebates, Washington
Grant County PUD
Pays for the retrofit measures.
Verified against source on 2026-08-29. Grant PUD rebates
Klickitat PUD (BPA-funded)
Pays for the retrofit measures.
Verified against source on 2026-08-29. Klickitat PUD conservation rebates
Okanogan County PUD
Pays for the retrofit measures.
Verified against source on 2026-08-29. Okanogan County PUD Commercial Programs
Puget Sound Energy
Pays for the retrofit measures.
- Assessment (PSE electric+gas, 100% of fee): $5,000
Verified against source on 2026-09-12. PSE Existing Building Commissioning
Washington OSPI
Pays for the planning work.
Verified against source on 2026-08-29. OSPI Small District Energy Assessment Grant
Internal Revenue Service
Pays for the retrofit measures.
Verified against source on 2026-08-29. 26 U.S.C. 179D: termination at (i), designer allocation at (d)(3)
WA Department of Commerce
Pays for the planning work.
Verified against source on 2026-08-29. Commerce: Clean Buildings Performance Grants
WA Department of Commerce (Energy Division)
Pays for the retrofit measures.
Verified against source on 2026-08-29. Commerce: Energy Efficiency Retrofits Grants
WA Department of Commerce
Pays for the planning work.
Verified against source on 2026-08-29. Commerce: Energy Audit Incentive Program (CBPS)
Rounds open and close, and a program page is always more current than a list. Confirm any figure with the administrator before you rely on it.