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WAL3320 — Power plant · Gas, reciprocating engine · Walmart Stores Texas, LLCNorth Edinburg BESS 1 — Storage · TX · 10 MW · 15.9 km awayGunnar Reliability Project — Storage · TX · 154.8 MW · 17.8 km awayJerboa Storage — Storage · TX · 200 MW · 20.9 km away
  • Combustion
  • Storage
  • Under construction
  • Operating
  • 10 · 100 · 1,000 MW

Power plant · Gas, reciprocating engine

Key facts

Power plant · Gas, reciprocating engineran 3% of 2025 Operating
Capacity
Capacity: sourceEIA-860M · Open licenseMW
Commissioned
2021
Net generation, 2025
355 MWh
Grid
0.5 kV to AEP Texas Central Company (ERCO)
Location
Hidalgo County, Texas
Operated by
Walmart Stores Texas, LLCSourceEIA-860M Preliminary Monthly Electric Generator Inventory

Output

Net generation MWh by year, 2021 to 2025
Fuel burned MMBtu by year, 2021 to 2025
  • Gas

Operations detail

Details

Who’s behind it

No companies named in filings yet.

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Technology
Gas, reciprocating engine source: “Natural Gas Internal Combustion Engine”
Age
5 years since 2021
Unused energy
10 GWh 2025Unused energyA lead, not a guarantee: MW × hours × (1 − capacity factor) for the latest year (EIA-923), gas, coal and oil plants only. Air-permit run-hour caps, heat rate (cost to run) and capacity-market or reliability obligations can rule it out.
Heat rate
9,989 Btu/kWh 2025
All 6 attributes from EIA-860M Preliminary Monthly Electric Generator Inventory
Attributes
AttributeValue
Grid
Nerc region
TRE
Report year
2025
Grid voltage kv
0.500
Transmission owner
AEP Texas Central Company
Balancing authority code
ERCO
Balancing authority name
Electric Reliability Council of Texas, Inc.
Fuel burned (MMBtu), 20253,546
Capacity factor, 20250.034
Heat rate (Btu/kWh), 20259,988.7
Net generation (MWh), 2025355
Balancing authority codeERCO

Timeline

  • In service · EIA-860M

Sources

3 sources

View at source

Around this plant

Nearby

within 25 km
Projects within 25 km, nearest first.
ProjectKindAwayMW
North Edinburg BESS 1 Under construction Storage 15.9 km 10
Gunnar Reliability Project Built Storage 17.8 km 154.8
Jerboa Storage Postponed Storage 20.9 km 200

Sources EIA-860M · ERCOT

Sources

Attribution