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WAL456

Natural gas power plant · Cameron County, Texas

Nameplate capacity
1.2 MW
Rank in Texas
#1029
of 1,071 plants
In service since
2021
September 2021

Details

Primary fuel
Natural gas
Technology
Natural Gas Internal Combustion Engine
Operator
Walmart Stores Texas, LLC
County
Cameron County
Generating units
3
Share of state capacity
0.00%
Rank among natural gas plants in Texas
#277 of 310
EIA plant code
64777

Generating units

Individual generating units at WAL456
UnitTechnologyNameplateSummerOnlineStatus
GEN1Natural Gas Internal Combustion Engine0.4 MW0.4 MW2021Operating
GEN2Natural Gas Internal Combustion Engine0.4 MW0.4 MW2021Operating
GEN3Natural Gas Internal Combustion Engine0.4 MW0.4 MW2021Operating

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

WAL4526Natural gas1.2 MW
WAL4538Natural gas1.2 MW
WAL461Natural gas1.2 MW
WAL504Natural gas1.2 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 1.2 MW solar plant and a 1.2 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