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Buffalo Bill

Hydro power plant · Park County, Wyoming

Nameplate capacity
18 MW
Rank in Wyoming
#52
of 71 plants
In service since
1992
September 1992

Details

Primary fuel
Hydro
Technology
Conventional Hydroelectric
Operator
U S Bureau of Reclamation
County
Park County
Generating units
3
Share of state capacity
0.14%
Rank among hydro plants in Wyoming
#6 of 16
EIA plant code
7317

Generating units

Individual generating units at Buffalo Bill
UnitTechnologyNameplateSummerOnlineStatus
1Conventional Hydroelectric6.0 MW6.0 MW1992Operating
2Conventional Hydroelectric6.0 MW6.0 MW1992Operating
3Conventional Hydroelectric6.0 MW6.0 MW1992Operating

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 Wyoming

Barber CreekNatural gas23 MW
HartzogNatural gas23 MW
Casper Wind FarmWind17 MW
ArvadaNatural gas15 MW

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 18 MW solar plant and a 18 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 Wyoming power plants · What Wyoming actually generates