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Odyssey Energy Altura Cogen, LLC

Natural gas power plant · Harris County, Texas

Nameplate capacity

644 MW

Rank in Texas

#63

of 1,071 plants

In service since

1985

November 1985

Details

Primary fuel: Natural gas
Technology: Natural Gas Fired Combined Cycle
Operator: Odyssey Operating Services
County: Harris County
Generating units: 7
Share of state capacity: 0.32%
Rank among natural gas plants in Texas: #48 of 310
EIA plant code: 50815

Generating units

Individual generating units at Odyssey Energy Altura Cogen, LLC
Unit	Technology	Nameplate	Summer	Online	Status
GEN6	Natural Gas Fired Combined Cycle	129 MW	94 MW	1986	Operating
GEN7	Natural Gas Fired Combined Cycle	90 MW	63 MW	1995	Operating
GEN1	Natural Gas Fired Combined Cycle	85 MW	61 MW	1985	Operating
GEN2	Natural Gas Fired Combined Cycle	85 MW	63 MW	1985	Operating
GEN3	Natural Gas Fired Combined Cycle	85 MW	64 MW	1985	Operating
GEN4	Natural Gas Fired Combined Cycle	85 MW	65 MW	1986	Operating
GEN5	Natural Gas Fired Combined Cycle	85 MW	64 MW	1986	Operating

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 Texas

Colorado Bend Energy Center	Natural gas	654 MW
Hecate Energy Longhorn Solar LLC	Solar	650 MW
Graham	Natural gas	635 MW
DeCordova Steam Electric Station	Battery storage	627 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 644 MW solar plant and a 644 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