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201.6 MW Natural Gas operating in Frio, TX — Electric Reliability Council of Texas, Inc.
201.6 MW
Nameplate Capacity
24
Generators
units
Natural Gas Internal Combustion Engine
Technology
2010
Operating Since
Coordinates
28.9276, -99.0917
County
Frio, TX
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | South Texas Electric Coop, Inc | — | — |
| Owner(s) | South Texas Electric Coop, Inc | — | — |
| Status | Operating | — | — |
The Pearsall power plant, located in Frio County, Texas, has a total capacity of 201.6 MW. The plant began operating in 2010 and is owned and operated by South Texas Electric Coop, Inc. It utilizes 24 natural gas-fired internal combustion engine generators. Pearsall operates within the Electric Reliability Council of Texas (ERCOT) balancing authority.
In the most recent year of data, the plant generated 329,897 MWh of electricity, achieving a capacity factor of 18.6%. Pearsall ranks as the 120th largest power plant in Texas out of 144, and 746th nationally out of 945 plants. The plant is within the Texas Reliability Entity (TRE) NERC region.
Generated from EIA, GEM, and public data sources
ISO/RTO
ERCOT
Market
ISO/RTO Member
NERC Region
TRE — Texas Reliability Entity
Balancing Authority
23.9K MWh
Latest Month
329.9K MWh
Annual Generation
18.6%
Capacity Factor
CO₂ Intensity
1070 lb/MWh
NOx
25 lb/MWh
SO₂
2013
$965/kW
Est. Construction Cost
Total estimated cost: $194.6M
Point of Interconnection
Nearest Substation
Pearsall Switchyard · 138 kV
Substation Distance
< 10 km
Operator
South Texas Electric Cooperative
Coord Source
OSM spatial
Market Position
ISO/RTO Market
ERCOT
LMP Node
PEARSA_1_24
Pricing Hub
HB_SOUTH
Alt. Hub / Zone
LZ_SOUTH
Location Type
Resource Node
Node Source
EIA-860 direct report
Last updated 2026-03-14
View all articlesElectric Reliability Council of Texas, Inc. (ERCO)
Grid Voltage
138.0 kV
Regulatory Status
RE — Regulated
Entity Type
Cooperative
Sector
Electric Utility
0.029 lb/MWh
CH₄
0.020 lb/MWh
N₂O
0.002 lb/MWh
Capacity Factor
22.4%
Annual Net Gen
395 GWh
CO₂eq
1072 lb/MWh
Subregion
ERCOT All