GALLATIN

Operating

Coal power plant

Capacity
1,918 MW
Primary fuel
Coal
County
Sumner County
Operator
TENNESSEE VALLEY AUTHORITY
Status
Operating
Commissioned
1956
EIA plant ID
3403
Generators
12
Technology
Conventional Steam Coal
Net generation (2024)
4,158 GWh
Capacity factor (2024, EIA nameplate)
25%
Data vintage
EIA-860 2024 final; EIA-923 2022-2024 final
Coordinates
36.3154, -86.4006

See it on the map

GALLATIN, a 1,918 MW Coal power plant in Sumner County, Tennessee. Operated by TENNESSEE VALLEY AUTHORITY, commissioned 1956.

How GALLATIN compares

With 1,918 MW of capacity, GALLATIN ranks 3rd among the 53 operating power plants Bywatts maps in Tennessee and 2nd of the 7 operating Coal plants in the state. It accounts for about 20% of Tennessee's operating Coal capacity and 9.5% of all operating capacity in the state. Nationally it is the 35th-largest of the 324 operating Coal plants in the database. Commissioned in 1956, it is older than 56% of the 53 operating Tennessee plants with a recorded commissioning year. Its operator, TENNESSEE VALLEY AUTHORITY, runs 32 operating plants in Tennessee totaling 19,142 MW. It shares Sumner County with one other operating plant, OLD HICKORY.

EIA-860 lists 12 generators at the site with 1,918 MW of nameplate capacity, mainly conventional steam coal technology. Net generation was 4,158 GWh in 2024 (a 25% capacity factor), down 7% from 2022. Its generators came online between 1956 and 2000.

Grid neighborhood

The nearest named substation is CAIRO BEND, about 2.5 miles away; the closest transmission line found within 10 miles is a 161 kV line owned by TENNESSEE VALLEY AUTHORITY, under 0.1 miles away. Another 3 operating power plants totaling 136 MW sit within 25 miles; the largest is OLD HICKORY (104 MW, Hydro). Within 50 miles are 4 mapped data centers; the nearest is XO Nashville in Nashville, about 23.4 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

GALLATIN is a 1,918 MW coal power plant in Sumner County, TN, operated by TENNESSEE VALLEY AUTHORITY, commissioned in 1956. Sumner County carries elevated modeled catastrophe exposure in the FEMA National Risk Index, scoring 3.4 of 5 at the 59th national percentile. Earthquake is the leading peril, rated Relatively Moderate by FEMA at the 85th percentile.

The Bywatts loss layer is calibrated to solar PV hardware, so it is not applied to a coal plant. The ratings below are the FEMA National Risk Index county hazard ratings for this location.

3.4 of 5Modeled catastrophe exposure
ElevatedExposure band
EarthquakeLeading peril
Relatively ModerateFEMA county risk rating

Sumner County hazard ratings

PerilFEMA ratingNational percentilePeril scoreEvents per year
EarthquakeRelatively Moderate85th4.4 of 5<0.01
Ice stormRelatively High75th4.0 of 50.68
Riverine floodingRelatively Moderate74th4.0 of 52.1
Winter weatherRelatively High73rd3.9 of 56.2
LightningRelatively High73rd3.9 of 557.5
TornadoRelatively High68th3.7 of 50.42
HailRelatively Moderate67th3.7 of 53.3
Heat waveRelatively Low60th3.4 of 54.6
Strong windRelatively High40th2.6 of 56.2
HurricaneVery Low15th1.6 of 5<0.01
WildfireVery Low5th1.2 of 5<0.01

Perils not assessed in Sumner 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.

PerilWhy it is not scored
Coastal floodingFEMA rating is "Not Applicable" for this county

Model hail, wind and flood exposure for Sumner 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.