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5.6 MW Landfill Gas operating in Benton, OR
5.6 MW
Nameplate Capacity
5
Generators
units
Landfill Gas
Technology
1995
Operating Since
Coordinates
44.6974, -123.2233
County
Benton, OR
Nearby Plants
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| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Pacific Northwest Generating Coop | — | — |
| Owner(s) | Pacific Northwest Generating Coop | — | — |
| Status | Operating | — | — |
Coffin Butte is a 5.6 MW landfill gas power plant located in Benton County, Oregon. The facility began operating in 1995 and is owned and operated by Pacific Northwest Generating Cooperative. It consists of 5 generators utilizing landfill gas as its primary fuel source. The plant is interconnected to the Bonneville Power Administration balancing authority within the Western Electricity Coordinating Council (WECC) NERC region.
In the most recent year of data, Coffin Butte generated 38,367 MWh of electricity, achieving a capacity factor of 78.0%. Among landfill gas plants in Oregon, Coffin Butte ranks as the second largest of seven facilities. Nationally, it holds a rank of 94 out of 284 landfill gas plants.
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
12.47 kV
Regulatory Status
RE — Regulated
Entity Type
Cooperative
Sector
Electric Utility
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.
3.3K MWh
Latest Month
38.4K MWh
Annual Generation
78.0%
Capacity Factor
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CO₂ Intensity
0 lb/MWh
NOx
0.000 lb/MWh
SO₂
0.378 lb/MWh
CH₄
0.000 lb/MWh
N₂O
0.000 lb/MWh
Capacity Factor
86.2%
Annual Net Gen
42 GWh
CO₂eq
0.000 lb/MWh
Subregion
WECC Northwest
2013
$3,495/kW
Est. Construction Cost
Total estimated cost: $19.6M
Forward revenue, DSCR bands, and refinancing risk projected under price, demand, and policy scenarios. Powered by InfraSure's asset cashflow stack.
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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.
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