← Back to map

Pearsall

Frio County, Texas · EIA plant ID 3630 · Operator: South Texas Electric Coop, Inc
Natural gasNatural Gas Internal Combustion EngineERCOTBA: ERCO
📍 Open in Google Maps
Nameplate202MWSummer 202 MW
Generators24in service
Net generation454GWh12 mo to Dec 2025
Capacity factor26%gas/coal/oil units, summer MW
Heat rate8,970Btu/kWhfossil units, electric fuel, HHV
First online2010Runs as intermediate

Monthly net generation

EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
0204060GWh2001200320052007200920112013201520172019202120232025

Capacity factor by year

Net MWh ÷ (summer MW × hours), gas/coal/oil units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
0%10%20%30%2005201020152020202525.7% · 12 mo

Heat rate by year

Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
5,00010,00015,00020,000200520102015202020258,970 Btu/kWh · 12 mo
Annual data table
YearNet GWhCapacity factorHeat rate (Btu/kWh)
200148.7——
200246.7——
200339.36.0%14,537
20048.11.3%16,094
200530.85.1%13,836
200639.86.6%14,699
200721.93.6%17,521
2008325.3%16,614
200919.13.1%19,369
2010168.68.3%9,224
2011385.716.3%9,471
2012172.37.2%9,821
2013380.116.0%9,255
2014373.115.7%9,317
2015359.915.2%9,312
2016243.110.2%9,565
2017175.18.3%9,580
2018273.315.5%9,366
2019395.422.4%9,197
2020210.211.9%9,507
2021377.421.4%8,516
2022497.628.2%8,940
2023395.122.4%9,158
2024329.918.6%9,077
2025453.925.7%8,970

Generators

EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
Gen IDTechnologyPrime moverNameplate MWSummer MWOnlineStatusPlanned retirementOEM / model
10ANatural Gas Internal Combustion EngineIC8.48.4Mar 2010Operating—coming soon
11ANatural Gas Internal Combustion EngineIC8.48.4Mar 2010Operating—coming soon
12ANatural Gas Internal Combustion EngineIC8.48.4Mar 2010Operating—coming soon
13ANatural Gas Internal Combustion EngineIC8.48.4Mar 2010Operating—coming soon
14ANatural Gas Internal Combustion EngineIC8.48.4Mar 2010Operating—coming soon
15ANatural Gas Internal Combustion EngineIC8.48.4Mar 2010Operating—coming soon
16ANatural Gas Internal Combustion EngineIC8.48.4Mar 2010Operating—coming soon
17ANatural Gas Internal Combustion EngineIC8.48.4Apr 2010Operating—coming soon
18ANatural Gas Internal Combustion EngineIC8.48.4Mar 2010Operating—coming soon
19ANatural Gas Internal Combustion EngineIC8.48.4Apr 2010Operating—coming soon
1ANatural Gas Internal Combustion EngineIC8.48.4Mar 2010Operating—coming soon
20ANatural Gas Internal Combustion EngineIC8.48.4Apr 2010Operating—coming soon
21ANatural Gas Internal Combustion EngineIC8.48.4Apr 2010Operating—coming soon
22ANatural Gas Internal Combustion EngineIC8.48.4Apr 2010Operating—coming soon
23ANatural Gas Internal Combustion EngineIC8.48.4Apr 2010Operating—coming soon
24ANatural Gas Internal Combustion EngineIC8.48.4Apr 2010Operating—coming soon
2ANatural Gas Internal Combustion EngineIC8.48.4Mar 2010Operating—coming soon
3ANatural Gas Internal Combustion EngineIC8.48.4Mar 2010Operating—coming soon
4ANatural Gas Internal Combustion EngineIC8.48.4Mar 2010Operating—coming soon
5ANatural Gas Internal Combustion EngineIC8.48.4Mar 2010Operating—coming soon
6ANatural Gas Internal Combustion EngineIC8.48.4Mar 2010Operating—coming soon
7ANatural Gas Internal Combustion EngineIC8.48.4Mar 2010Operating—coming soon
8ANatural Gas Internal Combustion EngineIC8.48.4Mar 2010Operating—coming soon
9ANatural Gas Internal Combustion EngineIC8.48.4Mar 2010Operating—coming soon
1Natural Gas Steam TurbineST2223May 1961Retired Aug 2017—coming soon
2Natural Gas Steam TurbineST2223Jul 1961Retired Aug 2017—coming soon
3Natural Gas Steam TurbineST2223Sep 1961Retired Aug 2017—coming soon

Owner / operator

Operator: South Texas Electric Coop, Inc. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
South Texas Electric Coop, Inc100.0%202 MW

Nearby plants

Within 80 km.
Sunset Ridge Energy Center, LLC10 MW0.4 km
Morrow Lake BESS—1.3 km
Horizon Solar200 MW1.9 km
Morrow Lake Solar200 MW3.3 km
Elara Solar132 MW9.8 km
Dunlay Solar—43.1 km