Cushman 1 — Plant Summary
- EIA Plant ID
- 3914
- Capacity
- 43.2 MW
- Primary Fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Status
- Operating
- Location
- Mason, WA
- Operating Since
- 1926
- Generators
- 2
- Operator
- City of Tacoma - (WA)
- Parent Company
- —
- Annual Generation
- 120,047 MWh
- Capacity Factor
- 31.6%
- Balancing Authority
- City of Tacoma, Department of Public Utilities, Light Division
- ISO/RTO
- —
- NERC Region
- WECC
Cushman 1
OperatingHydro
Ranked #33 of 75 Hydro plants in WA#328 of 1454 nationally
43.2 MW Hydro operating in Mason, WA — City of Tacoma, Department of Public Utilities, Light Division
EIAWD
43.2 MW
Nameplate Capacity
2
Generators
units
Conventional Hydroelectric
Technology
1926
Operating Since
Location
Coordinates
47.4223, -123.2203
County
Mason, WA
Nearby Plants
- Cushman 2Hydro84.6 MW · 7.4 km
- Lilliwaup Falls GeneratingHydro1.4 MW · 9.5 km
- WynoocheeHydro12.8 MW · 29.5 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | City of Tacoma - (WA) | — | — |
| Owner(s) | City of Tacoma - (WA) | — | — |
| Status | Operating | — | — |
Ownership Chain
No GEM tracker match for this plant — ownership chain unavailable.
About
Cushman 1 is a hydroelectric power plant located in Mason County, Washington. The plant, which began operating in 1926, has a total capacity of 43.2 MW derived from two generators. It is owned and operated by City of Tacoma - (WA). The primary fuel source for the plant is water ("WAT" in EIA parlance).
In the most recent year with available data, Cushman 1 generated 120,047 MWh of electricity, resulting in a capacity factor of 31.6%. The plant's balancing authority is City of Tacoma, Department of Public Utilities, Light Division, and it operates within the Western Electricity Coordinating Council (WECC) NERC region. Cushman 1 is ranked as the 33rd largest power plant in Washington out of 75, and nationally it is ranked 333rd out of 1464 plants.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
WECC
Balancing Authority
City of Tacoma, Department of Public Utilities, Light Division
Grid Voltage
110 kV
Regulatory Status
RE
Entity Type
Municipal
Sector
Electric Utility
Generation
23.0K MWh
Latest Month
120.0K MWh
Annual Generation
31.6%
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.
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