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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
Grid Region
Pacific Northwest
Market
WEIM Participant
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
7.2K MWh
Latest Month
87.8K MWh
Annual Generation
5.6%
Capacity Factor
CO₂ Intensity
1699 lb/MWh
NOx
5 lb/MWh
SO₂
Gas turbine · Puget Sound Energy, Inc. · Data from 2015–2024
$278/kW
Installed Cost
$-11/kW
Annual CapEx
$76.8/MWh
Operating Cost
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
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
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ask pi about FredericksonPuget Sound Energy (PSEI)
Grid Voltage
115.0 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility
0.046 lb/MWh
CH₄
0.035 lb/MWh
N₂O
0.004 lb/MWh
Capacity Factor
10.2%
Annual Net Gen
160 GWh
CO₂eq
1701 lb/MWh
Subregion
WECC Northwest