Natural gasOperatingERCOT

Laredo

Natural gas power plant in Webb County, Texas. 263.6 MW of nameplate capacity across 2 generators, operated by City of San Antonio - (TX).

Also known as Laredo Power Plant · EIA plant 3439

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HEB00095WAL5713Seven Flags BESS LLCGuajillo Energy StorageLaredo10 km
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6 plants within 25 km, from EIA coordinates.

Key facts

Capacity
263.6 MWNameplate
Generators
2 operatingEIA-860M, August 2026
Operating since
August 2008First generator online
Operator
City of San Antonio - (TX)EIA operator ID 16604
Grid
ERCOTBalancing authority ERCO
Price nodes
2 ERCOT nodesResource nodes with prices
Location
Webb County, TX27.5667, −99.5089
EIA plant ID
3439EIA plant page

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

How much power Laredo produces

Free · EIA-923

Net generation, 2025

24.1 GWh

24,064 MWh, final

Capacity factor, 2025

1.0%

2024: 2.3%

January to July 2026

Not reported

Provisional. 0 of 7 months reported

Range, 2015 to 2025

24.1–234.4

GWh a year. Low 2025, high 2016

Annual net generation, GWhCapacity factor below each year
Annual net generation from EIA-923
YearNet generation, MWhCapacity factorMonths reported
2000735,976Not reported12 of 12
2001567,314Not reported12 of 12
2002475,725Not reported12 of 12
2003637,200Not reported12 of 12
2004707,706Not reported12 of 12
2005625,115Not reported12 of 12
2006664,489Not reported9 of 12
2007794,360Not reported12 of 12
2008328,015Not reported7 of 12
2009402,815Not reported12 of 12
2010128,8935.6%12 of 12
201199,6384.3%12 of 12
2012196,0838.5%12 of 12
2013203,6778.8%12 of 12
2014135,6875.9%12 of 12
201588,6953.8%12 of 12
2016234,43210.1%12 of 12
2017111,7664.8%12 of 12
2018173,2177.5%12 of 12
2019111,6094.8%12 of 12
202076,0703.3%12 of 12
2021101,8474.4%12 of 12
202236,0931.6%12 of 12
202342,0521.8%12 of 12
202452,3862.3%12 of 12
202524,0641.0%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 · ERCOT

Emissions

Free · EPA CAMPD

CO₂, 2025

14,211

US short tons. 2024: 28,972

SO₂, 2025

0

US short tons

NOx, 2025

1

US short tons

CO₂ per MWh, calculated

0.59 t

About 1,181 lb per MWh

2 of 2 EPA units reported CO₂ in 2025 (4, 5), matched to EIA plant 3439 through the EPA–EIA crosswalk. The per-MWh rate is EPA CO₂ divided by EIA-923 net generation. The two reporting boundaries can differ.

Water use

Free · EIA-923 cooling, USGS

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

Generators

Free · EIA-860M
GeneratorTechnologyNameplate MWOnline since
4Natural Gas Fired Combustion Turbine131.8August 2008
5Natural Gas Fired Combustion Turbine131.8September 2008

Ownership and offtake

Pro
Pro

Ownership and offtake are part of Pro

Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists City of San Antonio - (TX) 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 Laredo

More plants operated by City of San Antonio - (TX)

Questions about Laredo

How much power does Laredo produce?

Laredo reported 24,064 MWh (24.1 GWh) of net generation in 2025, a 1.0% capacity factor on 263.6 MW of nameplate capacity.

Where is Laredo?

Laredo is in Webb County, Texas, at 27.5667, −99.5089. It is in the Electric Reliability Council of Texas, Inc. balancing area (ERCO).

Who operates Laredo?

EIA-860M for August 2026 lists City of San Antonio - (TX) as the operator (EIA operator ID 16604). The operator is not always the owner.

When did Laredo start operating?

Its first generator began operating in August 2008, according to EIA-860M.

Does InfraMap have power prices for Laredo?

Yes. InfraMap has ERCOT day-ahead and real-time prices at 2 price nodes linked to Laredo, with the hub price and node-to-hub basis. Prices are free with an InfraMap account; pricing node names are part of InfraMap Pro.

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)
  • EPA CAMPD annual emissions through the EPA–EIA crosswalk, 1995 to 2025
  • ERCOT day-ahead and real-time prices; node and hub assignments as of 2026-10-05
  • Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)

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