Search
Search plants, projects, owners, and states
Search plants, projects, owners, and states
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
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
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
25.1K MWh
Latest Month
798.8K MWh
Annual Generation
7.7%
Capacity Factor
CO₂ Intensity
660 lb/MWh
NOx
0.522 lb/MWh
SO₂
0.000 lb/MWh
CH₄
0.024 lb/MWh
N₂O
0.002 lb/MWh
Capacity Factor
9.2%
Annual Net Gen
955 GWh
CO₂eq
661 lb/MWh
Subregion
ERCOT All
2013
$965/kW
Est. Construction Cost
Total estimated cost: $1.1B
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
Alt. Hub / Zone
LZ_HOUSTON
Location Type
Resource Node
Node Source
EIA-860 direct report
Last updated 2026-03-26
View all articles