APALACHIA
SubstationTennessee · TENNESSEE VALLEY AUTHORITY
APALACHIA is an electric transmission substation in Tennessee, operated by TENNESSEE VALLEY AUTHORITY. It is classified as sub-transmission (138 kv) and connects 6 transmission lines. 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 |
|---|---|---|---|---|
| #34344 | 161 kV | TENNESSEE VALLEY AUTHORITY | IN SERVICE | 12.5 mi |
| #59147 | 161 kV | TENNESSEE VALLEY AUTHORITY | IN SERVICE | 8.7 mi |
| #59154 | 161 kV | — | IN SERVICE | 8.7 mi |
| #59164 | 161 kV | TENNESSEE VALLEY AUTHORITY | IN SERVICE | 11.2 mi |
| #64610 | 161 kV | TENNESSEE VALLEY AUTHORITY | IN SERVICE | 18.7 mi |
| #65129 | 161 kV | TENNESSEE VALLEY AUTHORITY | — | 0.2 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of APALACHIA, 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 |
|---|---|---|---|---|---|---|---|
| UNKNOWN170313 | Substation-Adjacent | TN | McMinn County | 500 kV | 1,000 MW | 3.7 yrs | 73.5 |
| Greenfield (WATTS BAR POWER STATION - UNKN) | Greenfield | TN | Meigs County | 500 kV | 1,000 MW | 3.7 yrs | 70.1 |
| Greenfield (SEQUOYAH - WATTS BAR POWER STA) | Greenfield | TN | Meigs County | 500 kV | 1,000 MW | 3.7 yrs | 69.9 |
| TAP152022 | Substation-Adjacent | TN | McMinn County | 161 kV | 100 MW | 3.7 yrs | 69.1 |
| ETOWAH DISTRICT | Substation-Adjacent | TN | McMinn County | 161 kV | 100 MW | 3.7 yrs | 69.0 |
| Greenfield (WATTS BAR POWER STATION - UNKN) | Greenfield | TN | McMinn County | 500 kV | 1,000 MW | 3.7 yrs | 68.7 |
| TELLICO | Substation-Adjacent | TN | Monroe County | 161 kV | 100 MW | 3.7 yrs | 67.7 |
| HENDERSON | Substation-Adjacent | TN | McMinn County | 161 kV | 100 MW | 3.7 yrs | 67.7 |
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.
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This page shows a public slice of the GridCensus dataset for APALACHIA 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.