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714.9 MW Natural Gas operating in Grays Harbor, WA
714.9 MW
Nameplate Capacity
3
Generators
units
Natural Gas Fired Combined Cycle
Technology
2008
Operating Since
Coordinates
46.9692, -123.4800
County
Grays Harbor, WA
Nearby Plants
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| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Invenergy Services LLC | Invenergy Services | — |
| Owner(s) | Invenergy Services LLC | Invenergy | — |
| Status | Operating | — | — |
Grays Harbor Energy Facility is a 714.9 MW natural gas-fired combined cycle power plant located in Grays Harbor County, Washington. The plant, which began operating in 2008, is owned by Invenergy and operated by Invenergy Services LLC. It consists of three generators utilizing combined cycle technology. Grays Harbor Energy Facility operates within the Bonneville Power Administration balancing authority and the Western Electricity Coordinating Council (WECC) NERC region.
In the most recent year of reported data, the plant generated 3,649,445 MWh of electricity, achieving a capacity factor of 58.3%. Grays Harbor Energy Facility is ranked as the largest of 13 natural gas plants in the state of Washington, and 296th out of 945 natural gas plants 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
Bonneville Power Administration (BPAT)
Grid Voltage
230.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Monthly net generation as reported to EIA-923 — useful for historical context. Confidence varies sharply by fuel type; the band above and the “About this data” button explain the caveats specific to this plant and how InfraSure’s in-house model handles them.
225.1K MWh
Latest Month
3.6M MWh
Annual Generation
58.3%
Capacity Factor
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CO₂ Intensity
851 lb/MWh
NOx
0.050 lb/MWh
SO₂
0.006 lb/MWh
CH₄
0.017 lb/MWh
N₂O
0.002 lb/MWh
Capacity Factor
57.8%
Annual Net Gen
3618 GWh
CO₂eq
852 lb/MWh
Subregion
WECC Northwest
2013
$965/kW
Est. Construction Cost
Total estimated cost: $690.0M
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This plant's balancing authority participates in CAISO's Western Energy Imbalance Market (WEIM). Direct nodal pricing data is not yet available.
No wholesale contracts disclosed in FERC EQR for this plant.
FERC EQR captures bilateral wholesale energy + capacity contracts ≥$1M/yr filed quarterly by jurisdictional sellers — covers renewable PPAs, thermal energy sales agreements, capacity contracts, and tolling agreements alike. Many plants don't appear: regulated-utility output flows to ratepayers via cost-of-service rather than bilateral contracts; small projects fall below the filing threshold; tax-equity-financed renewables route offtake to investors not utilities; merchant plants sell into ISO clearing markets without bilateral contracts. News-extracted buyer facts (below) may surface contracts disclosed only through announcements.
Last updated 2026-03-14
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