GREENS BAYOU
Partly retiredNatural Gas power plant
- Capacity
- 878 MW
- Primary fuel
- Natural Gas
- County
- Harris County
- Operator
- NRG TEXAS POWER LLC
- EIA plant ID
- 3464
- Generators
- 6
- Technology
- Natural Gas Fired Combustion Turbine
- Net generation (2024)
- 37.1 GWh
- Capacity factor (2024, EIA nameplate)
- 1%
- Data vintage
- EIA-860 2024 final; EIA-923 2022-2024 final
- Coordinates
- 29.8191, -95.2223
GREENS BAYOU, a partly retired 878 MW Natural Gas power plant in Harris County, Texas. Most of its capacity was retired, most recently in 2017, according to EIA-860.
How GREENS BAYOU compares
EIA-860 lists 432 MW still operable at the site (natural gas fired combustion turbine), against the 878 MW recorded for it. Its operator, NRG TEXAS POWER LLC, runs 6 operating plants in Texas totaling 9,170 MW. It shares Harris County with 19 other operating plants, including T H WHARTON and DEER PARK ENERGY CENTER.
EIA-860 lists 6 generators at the site with 432 MW of nameplate capacity, all natural gas fired combustion turbine technology (this page's HIFLD capacity figure is 878 MW). Net generation was 37.1 GWh in 2024 (a 1% capacity factor), down 83% from 2022.
Grid neighborhood
The nearest named substation is DOWNTOWN, about 10.1 miles away; the closest transmission line found within 10 miles is a 138 kV line owned by CENTERPOINT ENERGY HOUSTON ELECTRIC, LLC, under 0.1 miles away. Another 23 operating power plants totaling 10,277 MW sit within 25 miles; the largest is CEDAR BAYOU (1,530 MW, Natural Gas). Within 50 miles are 4 mapped data centers; the nearest is Netrality Houston - 1301 Fannin in Houston, about 9.7 miles away.
Computed by Bywatts from HIFLD power plant, substation and transmission line records, EIA-860/923 survey data and PeeringDB data center locations; distances are straight-line. Sources and methodology
Weather peril exposure
GREENS BAYOU is a partly retired 878 MW natural gas power plant in Harris County, TX, operated by NRG TEXAS POWER LLC. Harris County carries elevated modeled catastrophe exposure in the FEMA National Risk Index, scoring 2.7 of 5 at the 42nd national percentile. Hurricane is the leading peril, rated Very High by FEMA at the 90th percentile.
The Bywatts loss layer is calibrated to solar PV hardware, so it is not applied to a natural gas plant. The ratings below are the FEMA National Risk Index county hazard ratings for this location.
Harris County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Hurricane | Very High | 90th | 4.6 of 5 | 0.18 |
| Riverine flooding | Very High | 85th | 4.4 of 5 | 5.1 |
| Tornado | Very High | 44th | 2.7 of 5 | 1.6 |
| Ice storm | Very High | 39th | 2.6 of 5 | 0.91 |
| Wildfire | Relatively Low | 32nd | 2.3 of 5 | <0.01 |
| Coastal flooding | Relatively High | 26th | 2.0 of 5 | 3.8 |
| Heat wave | Very High | 25th | 2.0 of 5 | 14.9 |
| Earthquake | Relatively Moderate | 18th | 1.7 of 5 | <0.01 |
| Strong wind | Very High | 15th | 1.6 of 5 | 1.5 |
| Hail | Relatively Moderate | 14th | 1.6 of 5 | 2.4 |
| Lightning | Very High | 12th | 1.5 of 5 | 74.6 |
| Winter weather | Relatively High | 4th | 1.2 of 5 | 1.1 |
Model hail, wind and flood exposure for Harris County in the weather risk calculator
Ratings are the FEMA National Risk Index county hazard ratings; the peril score is a Bywatts transform of the FEMA national percentile. Full data sources and the solar vulnerability methodology are in the weather risk calculator.
Modeled estimate for screening and negotiation. Built from FEMA National Risk Index county hazard data and a solar vulnerability layer documented above. Not a quote, a binder, or actuarial advice, and not a substitute for a carrier's own model. Hazard data: FEMA National Risk Index December 2025, synced 2026-07-24. Resolution is county level, not site level.