KNOX LEE
OperatingNatural Gas power plant
- Capacity
- 501 MW
- Primary fuel
- Natural Gas
- County
- Gregg County
- Operator
- SOUTHWESTERN ELECTRIC POWER CO
- Status
- Operating
- Commissioned
- 1974
- EIA plant ID
- 3476
- Generators
- 1
- Technology
- Natural Gas Steam Turbine
- Net generation (2024)
- 321 GWh
- Capacity factor (2024, EIA nameplate)
- 10%
- Data vintage
- EIA-860 2024 final; EIA-923 2022-2024 final
- Coordinates
- 32.3768, -94.6415
KNOX LEE, a 501 MW Natural Gas power plant in Gregg County, Texas. Operated by SOUTHWESTERN ELECTRIC POWER CO, commissioned 1974.
How KNOX LEE compares
With 501 MW of capacity, KNOX LEE ranks 77th among the 307 operating power plants Bywatts maps in Texas and 62nd of the 134 operating Natural Gas plants in the state. It accounts for about 0.7% of Texas's operating Natural Gas capacity and 0.5% of all operating capacity in the state. Nationally it is the 331st-largest of the 1,185 operating Natural Gas plants in the database. Commissioned in 1974, it is older than 81% of the 303 operating Texas plants with a recorded commissioning year. Its operator, SOUTHWESTERN ELECTRIC POWER CO, runs 3 operating plants in Texas totaling 3,057 MW.
EIA-860 lists 1 generator at the site with 351 MW of nameplate capacity, all natural gas steam turbine technology (this page's HIFLD capacity figure is 501 MW). Net generation was 321 GWh in 2024 (a 10% capacity factor), down 12% from 2022.
Grid neighborhood
The closest transmission line found within 10 miles is a 138 kV line, under 0.1 miles away. Another 5 operating power plants totaling 4,362 MW sit within 25 miles; the largest is MARTIN LAKE (2,380 MW, Coal).
Computed by Bywatts from HIFLD power plant and transmission line records and EIA-860/923 survey data; distances are straight-line. Sources and methodology
Weather peril exposure
KNOX LEE is a 501 MW natural gas power plant in Gregg County, TX, operated by SOUTHWESTERN ELECTRIC POWER CO, commissioned in 1974. Gregg County carries high modeled catastrophe exposure in the FEMA National Risk Index, scoring 4.2 of 5 at the 79th national percentile. Ice storm is the leading peril, rated Very High by FEMA at the 92nd 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.
Gregg County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Ice storm | Very High | 92nd | 4.7 of 5 | 0.98 |
| Hail | Relatively High | 82nd | 4.3 of 5 | 5.4 |
| Lightning | Relatively Moderate | 79th | 4.2 of 5 | 60.9 |
| Tornado | Relatively High | 78th | 4.1 of 5 | 0.25 |
| Winter weather | Relatively Moderate | 74th | 3.9 of 5 | 3.2 |
| Heat wave | Relatively Moderate | 71st | 3.8 of 5 | 19.4 |
| Hurricane | Relatively Low | 60th | 3.4 of 5 | 0.03 |
| Wildfire | Very Low | 51st | 3.0 of 5 | <0.01 |
| Strong wind | Relatively High | 37th | 2.5 of 5 | 6.0 |
| Earthquake | Relatively Low | 33rd | 2.3 of 5 | <0.01 |
| Riverine flooding | Relatively Moderate | 12th | 1.5 of 5 | 1.8 |
Perils not assessed in Gregg County
These perils carry no usable National Risk Index figure for this county, so they are excluded from the scoring rather than scored zero. A zero would claim the peril was assessed and found benign.
| Peril | Why it is not scored |
|---|---|
| Coastal flooding | FEMA rating is "Not Applicable" for this county |
Model hail, wind and flood exposure for Gregg 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.