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689.4 MW Natural Gas operating in Umatilla, OR — Gridforce Energy Management, LLC
689.4 MW
Nameplate Capacity
3
Generators
units
Natural Gas Fired Combined Cycle
Technology
2002
Operating Since
Coordinates
45.7935, -119.3130
County
Umatilla, OR
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Hermiston Power Partnership | Hermiston Power Partnership | — |
| Owner(s) | Hermiston Power Partnership | Hermiston Power Partnership | — |
| Status | Operating | — | — |
Hermiston Power Partnership is a 689.4 MW natural gas-fired combined cycle power plant located in Umatilla County, Oregon. The plant began operating in 2002 and consists of 3 generators. It is owned and operated by Hermiston Power Partnership. The plant is within the Western Electricity Coordinating Council (WECC) NERC region, and its balancing authority is Gridforce Energy Management, LLC.
In the most recent year of data, the plant generated 2,988,998 MWh of electricity, achieving a capacity factor of 49.8%. Hermiston Power Partnership is ranked as the largest of 10 natural gas plants in Oregon, and 325th out of 945 nationwide.
Generated from EIA, GEM, and public data sources
Grid Region
Pacific Northwest
Market
Bilateral Market
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
323.4K MWh
Latest Month
3.0M MWh
Annual Generation
49.8%
Capacity Factor
CO₂ Intensity
879 lb/MWh
NOx
0.111 lb/MWh
SO₂
2013
$965/kW
Est. Construction Cost
Total estimated cost: $665.4M
This plant is in a bilateral market territory without organized wholesale pricing. Nodal pricing data is not available.
Last updated 2026-03-26
View all articlesNo ask pi reports yet for this entity.
ask pi about Hermiston Power PartnershipGridforce Energy Management, LLC (GRID)
Grid Voltage
500.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
0.004 lb/MWh
CH₄
0.016 lb/MWh
N₂O
0.002 lb/MWh
Capacity Factor
64.9%
Annual Net Gen
3918 GWh
CO₂eq
880 lb/MWh
Subregion
WECC Northwest