Seattle City Light heat pump rebates.
Stacked, current, actionable.

Overview

Seattle City Light (SCL) is a municipally-owned utility serving Seattle and a handful of surrounding jurisdictions. Its residential heat pump rebate program is among the most generous in the Pacific Northwest and predates the IRA era — SCL began rebating heat pumps in 2015 as part of the city's 2030 carbon-neutral pledge. See the Washington state rebate landscape for how SCL fits alongside Puget Sound Energy, Snohomish PUD, and other WA utilities.

The base residential rebate is $1,500 to $1,800 per qualifying air-source heat pump install (tier-dependent, verify current amount on utility site). Ductless mini-split conversions that retire an existing electric resistance or fossil-fuel heating system receive an additional $800 bonus. Rebate is paid as a mail-in reimbursement 4-8 weeks after submission.

For income-qualified households, SCL's HomeWise program layers additional measures — weatherization, air sealing, and in some cases a zero-cost heat pump install through contracted community agencies. HomeWise eligibility runs up to 80% of Seattle-King County AMI, which is meaningfully higher than federal 80% AMI given Seattle's income distribution.

Stacking with HEEHRA and federal credits

SCL rebates are municipal utility rebates and stack cleanly with Washington State HEEHRA, which is administered by the WA Department of Commerce and expected to go live in mid-to-late 2026 (verify on the HEEHRA guide for the current launch status). Income-qualified Seattle households can combine SCL's $1,500-$1,800 rebate plus $800 ductless bonus plus HEEHRA's up-to-$8,000 federal ceiling.

Manufacturer rebates (Mitsubishi, Daikin, Fujitsu, LG — the dominant brands in Seattle ductless installs) stack on top of both SCL and HEEHRA. Apply in the order outlined in the rebate stacking guide: manufacturer at quote, SCL after install, HEEHRA at invoice via participating contractor once WA portal is live.

Application tips

Submit the SCL rebate application within 120 days of install — this window is more generous than Duke or Con Edison, but late submissions still forfeit the rebate entirely. The application requires the AHRI Certificate of Product Ratings, the contractor invoice showing itemized equipment and labor, and a photo of the outdoor unit nameplate.

Confirm your contractor is on the SCL registered contractor list before signing. SCL maintains a searchable list on its rebate portal, and the list is enforced strictly — an install completed by a non-registered contractor does not become eligible retroactively even if the equipment itself qualifies.

If you are income-qualified, apply to HomeWise before the market-rate SCL rebate. HomeWise can fully cover the install at no cost, whereas the market-rate rebate leaves $6,000-$10,000 out-of-pocket on a typical ductless install. HomeWise applications route through community agencies, not directly through SCL's rebate portal.