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879 MW Natural Gas operating in Harris, TX — Electric Reliability Council of Texas, Inc.
879 MW
Nameplate Capacity
7
Generators
units
Natural Gas Fired Combustion Turbine
Technology
1976
Operating Since
Coordinates
29.8222, -95.2194
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 | — | — |
Greens Bayou is a 432 MW natural gas-fired power plant located in Harris County, Texas. The plant began operating in 1976 and consists of six natural gas-fired combustion turbine generators. It is owned by NRG Energy and operated by NRG Texas Power LLC. Greens Bayou operates within the Electric Reliability Council of Texas (ERCOT) balancing authority and the TRE NERC region.
In the most recent year with available data, Greens Bayou generated 37,072 MWh of electricity, resulting in a capacity factor of 1.0%. The plant ranks 92nd out of 144 power plants in Texas and 526th out of 945 plants nationally.
Generated from EIA, GEM, and public data sources
ISO/RTO
ERCOT
Market
ISO/RTO Member
NERC Region
TRE — Texas Reliability Entity
Balancing Authority
0 MWh
Latest Month
37.1K MWh
Annual Generation
1.0%
Capacity Factor
CO₂ Intensity
0 lb/MWh
NOx
3 lb/MWh
SO₂
2013
$965/kW
Est. Construction Cost
Total estimated cost: $848.3M
Point of Interconnection
Nearest Substation
Greens Bayou 69kV Substation · 69 kV
Substation Distance
< 10 km
Operator
CenterPoint Energy
Coord Source
OSM spatial
Market Position
ISO/RTO Market
ERCOT
LMP Node
GBY_GT
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 articlesElectric 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
0.000 lb/MWh
CH₄
0.033 lb/MWh
N₂O
0.003 lb/MWh
Capacity Factor
2.4%
Annual Net Gen
92 GWh
CO₂eq
2 lb/MWh
Subregion
ERCOT All