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319 MW Natural Gas operating in Cowlitz, WA — Puget Sound Energy
319 MW
Nameplate Capacity
2
Generators
units
Natural Gas Fired Combined Cycle
Technology
2008
Operating Since
Coordinates
47.0863, -122.3650
County
Cowlitz, 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 | — | — |
Mint Farm Generating Station is a 319 MW natural gas-fired combined cycle power plant located in Cowlitz County, Washington. The plant, which began operating in 2008, is owned by PUGET HOLDINGS and operated by Puget Sound Energy Inc. It consists of two generators and ranks as the fourth-largest natural gas plant in Washington state (out of 13) and 622nd-largest nationally (out of 945). The plant operates within the Puget Sound Energy balancing authority and the Western Electricity Coordinating Council (WECC) NERC region.
In its most recent year of operation, Mint Farm Generating Station produced 2,306,414 MWh of electricity, achieving a capacity factor of 82.4%. Financial data indicates an installed cost of $324.9 per kW, according to FERC filings.
Generated from EIA, GEM, and public data sources
Grid Region
Pacific Northwest
Market
WEIM Participant
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
Puget Sound Energy (PSEI)
Grid Voltage
230.0 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility
220.2K MWh
Latest Month
2.3M MWh
Annual Generation
82.4%
Capacity Factor
CO₂ Intensity
884 lb/MWh
NOx
0.060 lb/MWh
SO₂
0.010 lb/MWh
CH₄
0.016 lb/MWh
N₂O
0.002 lb/MWh
Capacity Factor
71.2%
Annual Net Gen
1990 GWh
CO₂eq
885 lb/MWh
Subregion
WECC Northwest
Combined cycle · Puget Sound Energy, Inc. · Data from 2015–2024
$401/kW
Installed Cost
$1/kW
Annual CapEx
$30.7/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.
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