Natural gasOperatingERCOT

WAL5480

Natural gas power plant in Williamson County, Texas. 1.2 MW of nameplate capacity across 3 generators, operated by Walmart Stores Texas, LLC.

Also known as EIA plant 64959

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HEB00591WAL5479Rabbit Hill Energy Storage ProjectTX12 Silicon Hill StorageRP SCG Texas SolarWAL548010 km
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6 plants within 19 km, from EIA coordinates.

Key facts

Capacity
1.2 MWNameplate
Generators
3 operatingEIA-860M, August 2026
Operating since
September 2021First generator online
Operator
Walmart Stores Texas, LLCEIA operator ID 64315
Grid
ERCOTBalancing authority ERCO
Price nodes
None linkedNo verified ISO node
Location
Williamson County, TX30.5337, −97.6120
EIA plant ID
64959EIA plant page

Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.

How much power WAL5480 produces

Free · EIA-923

Net generation, 2025

303 MWh

303 MWh, final

Capacity factor, 2025

2.9%

2024: 2.5%

January to July 2026

Not reported

Provisional. 0 of 7 months reported

Range, 2022 to 2025

259.0–340.0

MWh a year. Low 2024, high 2022

Annual net generation, MWhCapacity factor below each year
Annual net generation from EIA-923
YearNet generation, MWhCapacity factorMonths reported
2000Not reportedNot reported0 of 12
2001Not reportedNot reported0 of 12
2002Not reportedNot reported0 of 12
2003Not reportedNot reported0 of 12
2004Not reportedNot reported0 of 12
2005Not reportedNot reported0 of 12
2006Not reportedNot reported0 of 12
2007Not reportedNot reported0 of 12
2008Not reportedNot reported0 of 12
2009Not reportedNot reported0 of 12
2010Not reportedNot reported0 of 12
2011Not reportedNot reported0 of 12
2012Not reportedNot reported0 of 12
2013Not reportedNot reported0 of 12
2014Not reportedNot reported0 of 12
2015Not reportedNot reported0 of 12
2016Not reportedNot reported0 of 12
2017Not reportedNot reported0 of 12
2018Not reportedNot reported0 of 12
2019Not reportedNot reported0 of 12
2020Not reportedNot reported0 of 12
20219Not reported4 of 12
20223403.2%12 of 12
20233343.2%12 of 12
20242592.5%12 of 12
20253032.9%12 of 12
2026 (provisional, partial year)Not reportedNot reported0 of 7

* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.

Power prices and basis

Free account

No verified ISO price node is linked to this plant, or its price history could not load.

Emissions

Free · EPA CAMPD

No EPA emissions units are linked to this plant.

Water use

Free · EIA-923 cooling, USGS

No EIA cooling-water record for this plant in 2024.

Generators

Free · EIA-860M
GeneratorTechnologyNameplate MWOnline since
GEN1Natural Gas Internal Combustion Engine0.4September 2021
GEN2Natural Gas Internal Combustion Engine0.4September 2021
GEN3Natural Gas Internal Combustion Engine0.4September 2021

Ownership and offtake

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Pro

Ownership and offtake are part of Pro

Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Walmart Stores Texas, LLC as the operator, which is not always the owner.

Modeled data

Pro

Pro adds modeled values for this plant. Everything above stays free.

Modeled

Generation potential vs reported

Monthly potential at seasonal net capability, next to EIA-923 output. Shows how much of the plant's capability was used.

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Power plants near WAL5480

More plants operated by Walmart Stores Texas, LLC

Questions about WAL5480

How much power does WAL5480 produce?

WAL5480 reported 303 MWh (303 MWh) of net generation in 2025, a 2.9% capacity factor on 1.2 MW of nameplate capacity.

Where is WAL5480?

WAL5480 is in Williamson County, Texas, at 30.5337, −97.6120. It is in the Electric Reliability Council of Texas, Inc. balancing area (ERCO).

Who operates WAL5480?

EIA-860M for August 2026 lists Walmart Stores Texas, LLC as the operator (EIA operator ID 64315). The operator is not always the owner.

When did WAL5480 start operating?

Its first generator began operating in September 2021, according to EIA-860M.

Sources

  • EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
  • EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)

Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page