VOLUNTEER
SubstationTennessee · KINGSPORT POWER CO
VOLUNTEER is an electric transmission substation in Tennessee, operated by KINGSPORT POWER CO. It is classified as extra-high-voltage (500 kv) and connects 13 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
Ownership & operation
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #26202 | 500 kV | TENNESSEE VALLEY AUTHORITY | IN SERVICE | 65.2 mi |
| #46603 | 500 kV | TENNESSEE VALLEY AUTHORITY | IN SERVICE | 21.5 mi |
| #59026 | 500 kV | TENNESSEE VALLEY AUTHORITY | IN SERVICE | 94.0 mi |
| #24589 | 161 kV | TENNESSEE VALLEY AUTHORITY | IN SERVICE | 9.9 mi |
| #24697 | 161 kV | TENNESSEE VALLEY AUTHORITY | IN SERVICE | 12.6 mi |
| #21082 | 161 kV | TENNESSEE VALLEY AUTHORITY | IN SERVICE | 12.7 mi |
| #36634 | 161 kV | KINGSPORT POWER CO | IN SERVICE | 53.4 mi |
| #43324 | 161 kV | TENNESSEE VALLEY AUTHORITY | IN SERVICE | 3.0 mi |
| #58852 | 161 kV | TENNESSEE VALLEY AUTHORITY | IN SERVICE | 22.3 mi |
| #58874 | 161 kV | TENNESSEE VALLEY AUTHORITY | IN SERVICE | 11.1 mi |
| #26476 | 161 kV | TENNESSEE VALLEY AUTHORITY | IN SERVICE | 3.0 mi |
| #21435 | 161 kV | — | IN SERVICE | 13.4 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of VOLUNTEER, 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 |
|---|---|---|---|---|---|---|---|
| VOLUNTEER | Substation-Adjacent | TN | Knox County | 500 kV | 1,000 MW | 3.7 yrs | 77.4 |
| BULL RUN | Substation-Adjacent | TN | Anderson County | 500 kV | 1,000 MW | 3.7 yrs | 75.7 |
| Greenfield (VOLUNTEER - WATTS BAR POWER ST) | Greenfield | TN | Union County | 500 kV | 1,000 MW | 3.7 yrs | 75.1 |
| TAP152048 | Substation-Adjacent | TN | Knox County | 161 kV | 100 MW | 3.7 yrs | 74.1 |
| HEISKELL | Substation-Adjacent | TN | Knox County | 161 kV | 100 MW | 3.7 yrs | 73.8 |
| TAP155213 | Substation-Adjacent | TN | Knox County | 161 kV | 100 MW | 3.7 yrs | 73.8 |
| TAP152053 | Substation-Adjacent | TN | Knox County | 161 kV | 100 MW | 3.7 yrs | 73.5 |
| TAP152058 | Substation-Adjacent | TN | Knox County | 161 kV | 100 MW | 3.7 yrs | 73.5 |
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 VOLUNTEER 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.