⚠️ Verify program details at your utility’s website before purchasing. Programs change.

Washington state’s smart thermostat rebate programs are anchored by Puget Sound Energy (PSE), which serves the largest customer base in the state. PSE also runs one of the most distinctive demand-response programs in the US, PSE Flex, which pays credits on line-voltage thermostats for electric baseboard heating as well as standard HVAC systems.

Puget Sound Energy (PSE) Smart Thermostat Rebate

PSE’s residential efficiency programs include smart thermostat rebates for qualifying ENERGY STAR models.

Rebate amount: $50–100 per qualifying thermostat
Who qualifies: PSE electric or gas customers with ENERGY STAR certified thermostat
How to apply: Submit through PSE’s online rebate portal at pse.com after purchase with your receipt

PSE Flex: Demand-Response Credits (Including Baseboard)

PSE Flex is PSE’s demand-response program, and one of the few programs in the US that explicitly includes line-voltage thermostats (Mysa and Sinopé for electric baseboard heating) alongside standard 24V thermostats.

Why this matters: Most US demand-response programs are designed for central HVAC systems. Washington state has significant electric baseboard heating stock, and PSE Flex acknowledges this by including baseboard thermostat owners in its rewards program.

Typical PSE Flex credits:
– Enrollment bonus: varies by program year
– Seasonal credits: paid based on participation in peak events

Eligible thermostats for PSE Flex:
– ecobee (Enhanced and Premium) ✓
– Google Nest ✓
– Honeywell Home ✓
– Mysa V2 (line-voltage baseboard) ✓
– Sinopé (line-voltage baseboard) ✓ (select models)

The baseboard thermostat inclusion is rare, worth flagging to any Washington homeowner with electric baseboard heating. See the dedicated PSE Flex guide: PSE Flex: Smart Thermostat Rewards (Washington)

Other Washington Utilities

Snohomish County PUD: Serves Snohomish County and parts of Island County. Runs efficiency programs that include thermostat rebates; check at snopud.com.

Seattle City Light: Municipal utility serving Seattle. Offers rebates independently of PSE; check seattle.gov/light for current programs.

Clark Public Utilities: Serves the Vancouver, WA area. Offers efficiency rebates including smart thermostats; check clark.wa.gov/public-utilities.

Avista: Serves eastern Washington (Spokane area). Check avistautilities.com for current thermostat rebate availability.

Qualifying Models

Washington-eligible thermostats: ecobee Enhanced/Premium, Google Nest, Honeywell T9/Sensi, Amazon Smart Thermostat, Mysa V2, Sinopé (rebate amounts, PSE Flex eligibility)

Frequently Asked Questions

How much does Puget Sound Energy rebate for a smart thermostat?
$50–100 for ENERGY STAR certified thermostats. Verify the current amount at pse.com before purchasing.

Does PSE Flex include electric baseboard thermostats?
Yes. PSE Flex is one of the few US demand-response programs that explicitly includes line-voltage thermostats (Mysa, Sinopé) for electric baseboard heating alongside standard HVAC thermostats.

Can I get both a PSE purchase rebate and PSE Flex credits?
They’re separate programs: the purchase rebate is one-time, PSE Flex credits are ongoing. Check current PSE program terms to confirm they’re stackable, as program structures vary.

What if I have Seattle City Light, not PSE?
Seattle City Light is a municipal utility with its own programs, separate from PSE. Check seattle.gov/light for their current thermostat rebate offerings.

Does Washington state have any non-utility thermostat rebates?
Washington’s clean energy programs flow mostly through utilities. Check washingtoncleanenergy.org for any state-level programs separate from utility offerings.