WATTS BAR FOSSIL
SubstationTennessee · TENNESSEE VALLEY AUTHORITY
WATTS BAR FOSSIL is an electric transmission substation in Tennessee, operated by TENNESSEE VALLEY AUTHORITY. It is classified as sub-transmission (138 kv) and connects 1 transmission line. Substation proximity is one of the strongest speed-to-power signals for siting a datacenter — interconnection distance to an energized, high-voltage bus is often the binding constraint on time-to-energization.
Voltage & classification
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #34452 | 161 kV | TENNESSEE VALLEY AUTHORITY | IN SERVICE | 0.7 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of WATTS BAR FOSSIL, ranked by DC Readiness. Sites this close to an energized substation carry a strong speed-to-power advantage.
| Site | Type | State | County | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|---|
| SEQUOYAH | Substation-Adjacent | TN | Hamilton County | 500 kV | 1,000 MW | 3.7 yrs | 79.1 |
| UNKNOWN170313 | Substation-Adjacent | TN | McMinn County | 500 kV | 1,000 MW | 3.7 yrs | 73.5 |
| Greenfield (BULL RUN - WATTS BAR POWER STA) | Greenfield | TN | Meigs County | 500 kV | 1,000 MW | 3.7 yrs | 71.4 |
| WATTS BAR POWER STATION | Substation-Adjacent | TN | Meigs County | 500 kV | 1,000 MW | 3.7 yrs | 71.0 |
| Greenfield (VOLUNTEER - WATTS BAR POWER ST) | Greenfield | TN | Loudon County | 500 kV | 1,000 MW | 3.7 yrs | 71.0 |
| TAP152029 | Substation-Adjacent | TN | Loudon County | 161 kV | 100 MW | 3.7 yrs | 70.9 |
| Greenfield (UNKNOWN115540 - WILSON) | Greenfield | TN | Roane County | 500 kV | 1,000 MW | 3.7 yrs | 70.9 |
| Greenfield (UNKNOWN115540 - WILSON) | Greenfield | TN | Roane County | 500 kV | 1,000 MW | 3.7 yrs | 70.7 |
Dataset updated . Screening estimates derived from public data sources.
Substation attributes are derived from public HIFLD / EIA infrastructure data and may lag real-world upgrades or retirements. Voltage and connected-line counts are screening figures — confirm available capacity and interconnection terms directly with the operating utility and ISO.
Go deeper than the public screen
This page shows a public slice of the GridCensus dataset for WATTS BAR FOSSIL substation, Tennessee. Pro and Enterprise plans unlock the full 164,098-site catalog, raw sub-scores, parcel ownership, interconnection-queue detail, saved searches, and programmatic API access.