Virtual power plants in Washington

PSE Flex Batteries

PSE dispatches enrolled batteries during up to about 100 two-hour events a year, in summer (June-September) and winter (November-March), keeping a 20% backup reserve (per Tesla).

Run by

Puget Sound Energy (PSE)

Where

Puget Sound Energy

Devices

home batteries (e.g. Tesla Powerwall)

Who can join

PSE customers with an interconnected battery and advanced meter; can't also be in PSE Flex Rewards.

What it pays

Enrollment: $75 per enrolled kWh, capped at $1,000 per battery. Performance: $0.50 per discharged kWh, up to $500 per battery a year.

Last checked 2026-10-02

PSE Flex Smart (thermostats)

PSE adjusts enrolled thermostats during peak events and pays for enrolling and for each season of participation.

Run by

Puget Sound Energy (PSE)

Where

Puget Sound Energy

Devices

smart thermostats, line-voltage connected thermostats

Who can join

PSE residential customers with an eligible thermostat.

What it pays

$50 per smart thermostat to enroll ($20 per line-voltage thermostat); $20 per smart thermostat per summer and winter season ($10 per line-voltage thermostat per winter).

Last checked 2026-10-02

Pacific Power Wattsmart Battery (Washington)

Same program as in Oregon: an upfront per-kW incentive and yearly credits in exchange for Pacific Power dispatch control.

Run by

Pacific Power (PacifiCorp)

Where

Pacific Power

Devices

home batteries with at least 4 kW / 10 kWh usable

Who can join

Pacific Power customers; 4-year commitment.

What it pays

$600 per kW upfront (capped at 70% of equipment cost) plus $15 per kW per year from year two.

Note: Duplicate listing of pacific-power-wattsmart-battery for the WA page.

Last checked 2026-10-02