1189.9 MW Natural Gas Fired Combined Cycle (664 MW) + Natural Gas Fired Combustion Turbine (526 MW) operating in Harris, TX — Electric Reliability Council of Texas, Inc.
1,189.9 MW
Nameplate Capacity
17
Generators
units
Hybrid (2)
Technology
Natural Gas Fired Combined Cycle + Natural Gas Fired Combustion Turbine
1967
Operating Since
Coordinates
29.9417, -95.5306
County
Harris, TX
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | NRG Texas Power LLC | NRG Texas Power | — |
| Owner(s) | NRG Texas Power LLC | NRG Energy | — |
| Status | Operating | — | — |
The T H Wharton power plant, located in Harris County, Texas, has a total capacity of 1189.9 MW across 17 generators. The plant began operating in 1967 and is owned by NRG Energy, with NRG Texas Power LLC as the operator. The plant is fueled by natural gas and utilizes both natural gas-fired combined cycle and natural gas-fired combustion turbine technologies, making it a hybrid plant.
The T H Wharton plant operates within the Electric Reliability Council of Texas (ERCOT) balancing authority and the TRE NERC region. In the most recent year of data, the plant generated 798,837 MWh, resulting in a capacity factor of 7.7%. The plant is ranked as the 14th largest in Texas out of 144 plants and 118th nationally out of 945 plants.
Generated from EIA, GEM, and public data sources
NERC Region
TRE
Balancing Authority
Electric Reliability Council of Texas, Inc.
Grid Voltage
138 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
25.1K MWh
Latest Month
798.8K MWh
Annual Generation
7.7%
Capacity Factor
No financial data available for this plant.
Point of Interconnection
Nearest Substation
T. H. Wharton Substation · 345 kV
Substation Distance
< 10 km
Operator
CenterPoint Energy
Coord Source
OSM spatial
Market Position
ISO/RTO Market
ERCOT
LMP Node
THW_CC1
Pricing Hub
HB_HOUSTON
Secondary Zone
LZ_HOUSTON
Location Type
Resource Node
Node Source
EIA-860 direct report
NRG awarded $370 million state loan to build northeast Houston power plant
In total, Houston-based NRG Energy has been awarded more than $1.1 billion in taxpayer-backed loans from the $7.2 billion Texas Energy Fund.
NRG Energy scores another financial win for $360 million power plant project
NRG Energy's $360 million TH Wharton Generating Station expansion in Houston approved for tax abatements from Cypress-Fairbanks ISD.
NRG Energy To Build $360M Natural Gas Plant In Houston’s Harris County
Texas Gov. Abbott announces NRG Energy's $360M natural gas facility in Harris County to enhance Houston's grid reliability.
White & Case advises NRG Energy, Inc. on Texas Energy Fund Loan For 456 MW natural gas generation project
Global law firm White & Case LLP has advised NRG Energy, Inc. (NRG), a leading North American energy and home services company, on its loan...
Last updated 2026-03-14
View all 10 articles