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Denison

Hydro power plant · Grayson County, Texas

Nameplate capacity
104 MW
Rank in Texas
#510
of 1,071 plants
In service since
1945
March 1945

Details

Primary fuel
Hydro
Technology
Conventional Hydroelectric
Operator
USCE-Tulsa District
County
Grayson County
Generating units
2
Share of state capacity
0.05%
Rank among hydro plants in Texas
#2 of 23
EIA plant code
6416

Generating units

Individual generating units at Denison
UnitTechnologyNameplateSummerOnlineStatus
1Conventional Hydroelectric54 MW50 MW1945Operating
2Conventional Hydroelectric51 MW50 MW1949Operating

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

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Marshall FordHydro108 MW
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Fort Duncan BESSBattery storage103 MW
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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 104 MW solar plant and a 104 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 Texas power plants · What Texas actually generates