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574.6 MW Natural Gas operating in Llano, TX — Electric Reliability Council of Texas, Inc.
574.6 MW
Nameplate Capacity
3
Generators
units
Natural Gas Fired Combined Cycle
Technology
2014
Operating Since
Coordinates
30.5580, -98.3721
County
Llano, TX
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Lower Colorado River Authority | Lower Colorado River Authority | — |
| Owner(s) | City of San Marcos - (TX), Lower Colorado River Authority | Lower Colorado River Authority | — |
| Status | Operating | — | — |
The Thomas C. Ferguson Power Plant consists of dual natural gas fired turbines and a single steam turbine run by exhaust heat from the gas turbines in a combined cycle configuration that generates 540 megawatts (MW) of electricity. The facility is located near Horseshoe Bay in Llano County, Texas, United States. It is owned and operated by the Lower Colorado River Authority (LCRA) and was named for Thomas C. Ferguson, a member of LCRA's first Board of Directors. Cooling water is provided by Lake LBJ, a freshwater reservoir created by Wirtz Dam.
Read more on WikipediaThe Thomas C Ferguson plant is a 574.6 MW natural gas-fired combined cycle power plant located in Llano County, Texas. The plant began operating in 2014 and consists of three generators. It is owned and operated by the Lower Colorado River Authority. The plant is connected to the Electric Reliability Council of Texas (ERCOT) grid and falls within the Texas Reliability Entity (TRE) NERC region.
In the most recent year with available data, the Thomas C Ferguson plant generated 3,630,050 MWh of electricity, achieving a capacity factor of 72.0%. The plant is the 66th largest in Texas out of 144 plants, and ranks 428th nationally out of 945 plants.
Generated from EIA, GEM, and public data sources
ISO/RTO
ERCOT
Market
ISO/RTO Member
NERC Region
TRE — Texas Reliability Entity
Balancing Authority
Electric Reliability Council of Texas, Inc. (ERCO)
Grid Voltage
138.0 kV
Regulatory Status
RE — Regulated
Entity Type
Political Subdivision
Sector
Electric Utility
280.0K MWh
Latest Month
3.6M MWh
Annual Generation
72.0%
Capacity Factor
CO₂ Intensity
792 lb/MWh
NOx
0.037 lb/MWh
SO₂
0.004 lb/MWh
CH₄
0.015 lb/MWh
N₂O
0.001 lb/MWh
Capacity Factor
75.0%
Annual Net Gen
3774 GWh
CO₂eq
792 lb/MWh
Subregion
ERCOT All
2014
$1,017/kW
Est. Construction Cost
Total estimated cost: $584.4M
Point of Interconnection
Nearest Substation
Ferguson Substation · 138 kV
Substation Distance
< 10 km
Operator
Lower Colorado River Authority
Coord Source
OSM spatial
Market Position
ISO/RTO Market
ERCOT
LMP Node
FERCCC_GT1_1
Pricing Hub
HB_SOUTH
Node Source
EIA-860 direct report
Last updated 2026-03-26
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