Palouse — Plant Summary
- EIA Plant ID
- 57530
- Capacity
- 105.3 MW
- Primary Fuel
- Wind
- Technology
- Onshore Wind Turbine
- Status
- Operating
- Location
- Whitman, WA
- Operating Since
- 2012
- Generators
- 1
- Operator
- Onward Energy
- Parent Company
- Onward Energy Holdings
- Annual Generation
- 325,878 MWh
- Capacity Factor
- 35.3%
- Balancing Authority
- Avista Corporation
- ISO/RTO
- —
- NERC Region
- WECC
Palouse
OperatingWind
Ranked #15 of 24 Wind plants in WA#671 of 1442 nationally
105.3 MW Wind operating in Whitman, WA — Avista Corporation
EIAGEMWD
105.3 MW
Nameplate Capacity
1
Generators
unit
Onshore Wind Turbine
Technology
2012
Operating Since
Location
Coordinates
47.1331, -117.3260
County
Whitman, WA
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Onward Energy | E.ON Energy Services | — |
| Owner(s) | Onward Energy | Onward Energy Holdings | — |
| Status | Operating | operating | — |
Ownership Chain
About
Located in Whitman County, Washington, the Palouse wind power plant has a total capacity of 105.3 MW. The facility began operating in 2012 and is owned and operated by Onward Energy Holdings. The plant utilizes a single generator consisting of multiple onshore wind turbines. The wind turbines have a hub height of 80 meters and a rotor diameter of 100 meters, and are manufactured by Vestas, model V100-1.8.
In the most recent year of data, the plant generated 325,878 MWh, achieving a capacity factor of 35.3%. Palouse is ranked as the 15th largest wind plant out of 17 in Washington state, and 663rd nationally out of 734. The plant operates within the Western Electricity Coordinating Council (WECC) NERC region, and its balancing authority is Avista Corporation.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
WECC
Balancing Authority
Avista Corporation
Grid Voltage
230 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Generation
29.4K MWh
Latest Month
325.9K MWh
Annual Generation
35.3%
Capacity Factor
Jan 2022 – Dec 2024
Financial Data
No financial data available for this plant.
Pricing & Market Data
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
News & Articles (10)Beta
Hazards·ice storm
URGENT - WEATHER MESSAGE National Weather Service Spokane WA 117 AM PDT Tue Mar 10 2026 Northern Panhandle-Coeur d`Alene Area-Idaho Palouse-Central Panhandle Mountains-Lower Garfield and Asotin Counties-Washington Palouse-Moses
National Weather Service (regulator)Spokane WA (regulator)
Facebook·4 days ago
Regulatory·federal policy
A future worth securing: Washingtonians must work together to keep our transition to clean energy on track
Washington's clean energy transition was never going to be easy or quick. Setbacks, political pressure from the federal level,...
Washington (regulator)
Northwest Progressive Institute·2 months ago
Grid·outage
Thousands still without power after record-breaking windstorm moves through Spokane region
Strong winds caused the death of a man near Coeur d'Alene and left thousands without power throughout the Inland Northwest Wednesday...
Spokane (operator)
The Spokesman-Review·3 months ago
Grid·outage
UPDATED AT 2:06 P.M.: Progress being made toward restoring power in region
Power outages in north central Idaho and southeastern Washington now affecting 15000 Avista customers.
Avista (operator)
Moscow-Pullman Daily News·3 months ago
Last updated 2026-03-14
View all 10 articles