Main Canal Headworks — Plant Summary
- EIA Plant ID
- 56698
- Capacity
- 26.8 MW
- Primary Fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Status
- Operating
- Location
- Grant, WA
- Operating Since
- 1987
- Generators
- 1
- Operator
- Columbia Basin Hydropower
- Parent Company
- —
- Annual Generation
- 103,306 MWh
- Capacity Factor
- 43.8%
- Balancing Authority
- Avista Corporation
- ISO/RTO
- —
- NERC Region
- WECC
Main Canal Headworks
OperatingHydro
Ranked #39 of 75 Hydro plants in WA#425 of 1454 nationally
26.8 MW Hydro operating in Grant, WA — Avista Corporation
EIAWD
26.8 MW
Nameplate Capacity
1
Generators
unit
Conventional Hydroelectric
Technology
1987
Operating Since
Location
Coordinates
47.6164, -119.2992
County
Grant, WA
Nearby Plants
- Summer Falls Power PlantHydro92 MW · 12.7 km
Ownership & Operator
| 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 | — | — |
Ownership Chain
No GEM tracker match for this plant — ownership chain unavailable.
About
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
Engineering & Generators
Grid Context
NERC Region
WECC
Balancing Authority
Avista Corporation
Grid Voltage
115 kV
Regulatory Status
RE
Entity Type
Municipal
Sector
Electric Utility
Generation
0 MWh
Latest Month
103.3K MWh
Annual Generation
43.8%
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 (2)Beta
General
IWUA honors Beukers for lifetime achievement
The Idaho Water Users Association has presented its Lifetime Achievement Award to longtime North Side Canal Co. board member John Beukers.
Capital Press·6 years ago
Deals·other
Columbia Basin Irrigation Districts agree to build and operate hydroelectric powerplants on May 10, 1980.
The three Columbia Basin Irrigation Districts -- the Quincy, East, and South -- enter into an agreement whereby they will construct, operate, and maintain...
Columbia Basin Irrigation Districts (developer)
HistoryLink.org·6 years ago
Last updated 2026-03-26
View all articles