177.8 MW Natural Gas operating in Pierce, WA — Puget Sound Energy
177.8 MW
Nameplate Capacity
2
Generators
units
Natural Gas Fired Combustion Turbine
Technology
1981
Operating Since
Coordinates
47.0797, -122.3650
County
Pierce, WA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Puget Sound Energy Inc | Puget Sound Energy | — |
| Owner(s) | Puget Sound Energy Inc | PUGET HOLDINGS | — |
| Status | Operating | — | — |
The Frederickson plant is a natural gas-fired power plant located in Pierce County, Washington. It has a total capacity of 177.8 MW across two natural gas-fired combustion turbine generators. The plant began operating in 1981. Puget Holdings is the parent company, while Puget Sound Energy Inc. is the operator and balancing authority. The plant operates within the Western Electricity Coordinating Council (WECC) NERC region.
In the most recent year with available data, the Frederickson plant generated 87,827 MWh, resulting in a capacity factor of 5.6%. The plant's installed cost was $225.14 per kW, according to FERC data. Frederickson is ranked as the 9th largest power plant out of 13 in Washington state, and 775th out of 945 nationally.
Generated from EIA, GEM, and public data sources
NERC Region
WECC
Balancing Authority
Puget Sound Energy
Grid Voltage
115 kV
Regulatory Status
RE
Entity Type
Investor-Owned Utility
Sector
Electric Utility
7.2K MWh
Latest Month
87.8K MWh
Annual Generation
5.6%
Capacity Factor
$278/kW
Installed Cost
$76.8/MWh
Operating Cost
Puget Sound Energy, Inc.
Reporting Utility
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
Last updated 2026-03-26
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