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26.8 MW Hydro operating in Grant, WA — Avista Corporation
26.8 MW
Nameplate Capacity
1
Generators
unit
Conventional Hydroelectric
Technology
1987
Operating Since
Coordinates
47.6164, -119.2992
County
Grant, WA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Columbia Basin Hydropower | — | — |
| Owner(s) | East Columbia Basin Irr Dist, Quincy-Columbia Basin Irr Dist, South Columbia Basin Irr Dist | — | — |
| Status | Operating | — | — |
Main Canal Headworks is a 26.8 MW hydroelectric power plant located in Grant County, Washington. The plant began operating in 1987 and utilizes conventional hydroelectric technology. It has one generator and is owned and operated by Columbia Basin Hydropower. The plant's primary fuel source is water (WAT).
In the most recent year of reported data, Main Canal Headworks generated 103,306 MWh of electricity, achieving a capacity factor of 43.8%. The plant operates within the Avista Corporation balancing authority and the Western Electricity Coordinating Council (WECC) NERC region. It is ranked as the 39th largest power plant in Washington out of 75, and nationally it is ranked 430 out of 1464 plants. Recent news articles indicate activity related to deals involving the plant.
Generated from EIA, GEM, and public data sources
Grid Region
Pacific Northwest
Market
WEIM Participant
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
0 MWh
Latest Month
103.3K MWh
Annual Generation
43.8%
Capacity Factor
2013
$2,294/kW
Est. Construction Cost
Total estimated cost: $61.5M
This plant's balancing authority participates in CAISO's Western Energy Imbalance Market (WEIM). Direct nodal pricing data is not yet available.
Last updated 2026-03-26
View all articlesNo ask pi reports yet for this entity.
ask pi about Main Canal HeadworksAvista Corporation (AVA)
Grid Voltage
115.0 kV
Regulatory Status
RE — Regulated
Entity Type
Municipal
Sector
Electric Utility