SANTEETLAH
SubstationTennessee · DUKE ENERGY CAROLINAS, LLC
SANTEETLAH is an electric transmission substation in Tennessee, operated by DUKE ENERGY CAROLINAS, LLC. It is classified as sub-transmission (138 kv) and connects 7 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 |
|---|---|---|---|---|
| #18150 | 161 kV | DUKE ENERGY CAROLINAS, LLC | IN SERVICE | 4.2 mi |
| #21215 | 161 kV | DUKE ENERGY CAROLINAS, LLC | IN SERVICE | 0.2 mi |
| #32433 | 161 kV | DUKE ENERGY CAROLINAS, LLC | IN SERVICE | 0.2 mi |
| #35140 | 161 kV | DUKE ENERGY CAROLINAS, LLC | IN SERVICE | 10.7 mi |
| #36783 | 161 kV | DUKE ENERGY CAROLINAS, LLC | IN SERVICE | 3.7 mi |
| #58678 | 161 kV | DUKE ENERGY CAROLINAS, LLC | IN SERVICE | 9.3 mi |
| #64792 | 161 kV | DUKE ENERGY CAROLINAS, LLC | — | 0.0 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of SANTEETLAH, 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 |
|---|---|---|---|---|---|---|---|
| FORT LOUDON DAM | Substation-Adjacent | TN | Loudon County | 161 kV | 100 MW | 3.7 yrs | 72.7 |
| Greenfield (VOLUNTEER - WATTS BAR POWER ST) | Greenfield | TN | Loudon County | 500 kV | 1,000 MW | 3.7 yrs | 71.4 |
| UNKNOWN115786 | Substation-Adjacent | TN | Loudon County | 161 kV | 100 MW | 3.7 yrs | 71.0 |
| UNKNOWN116380 | Substation-Adjacent | TN | Blount County | 161 kV | 100 MW | 3.7 yrs | 71.0 |
| TAP155212 | Substation-Adjacent | TN | Blount County | 161 kV | 100 MW | 3.7 yrs | 70.8 |
| EATON | Substation-Adjacent | TN | Loudon County | 161 kV | 100 MW | 3.7 yrs | 70.4 |
| TAP152043 | Substation-Adjacent | TN | Loudon County | 161 kV | 100 MW | 3.7 yrs | 70.1 |
| TAP152047 | Substation-Adjacent | TN | Blount County | 161 kV | 100 MW | 3.7 yrs | 69.6 |
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 SANTEETLAH 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.