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Coffin Butte

Other power plant · Benton County, Oregon

Nameplate capacity
5.6 MW
Rank in Oregon
#163
of 301 plants
In service since
1995
October 1995

Details

Primary fuel
Other
Technology
Landfill Gas
Operator
Pacific Northwest Generating Coop
County
Benton County
Generating units
5
Share of state capacity
0.03%
Rank among other plants in Oregon
#14 of 24
EIA plant code
7725

Generating units

Individual generating units at Coffin Butte
UnitTechnologyNameplateSummerOnlineStatus
4Landfill Gas1.6 MW1.6 MW2007Operating
5Landfill Gas1.6 MW1.6 MW2007Operating
1Landfill Gas0.8 MW0.8 MW1995Operating
2Landfill Gas0.8 MW0.8 MW1995Operating
3Landfill Gas0.8 MW0.8 MW1995Operating

Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.

Similarly sized plants in Oregon

About this data

From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 5.6 MW solar plant and a 5.6 MW nuclear plant have the same entry here and produce very different amounts of electricity.

“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All Oregon power plants · What Oregon actually generates