HIWASSEE DAM
SubstationTennessee · DUKE ENERGY CAROLINAS, LLC
HIWASSEE DAM is an electric transmission substation in Tennessee, operated by DUKE ENERGY CAROLINAS, LLC. 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
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 |
|---|---|---|---|---|
| #19886 | 161 kV | DUKE ENERGY CAROLINAS, LLC | IN SERVICE | 10.7 mi |
| #48879 | 161 kV | DUKE ENERGY CAROLINAS, LLC | IN SERVICE | 10.4 mi |
| #64608 | 161 kV | DUKE ENERGY CAROLINAS, LLC | IN SERVICE | 19.0 mi |
| #64609 | 161 kV | DUKE ENERGY CAROLINAS, LLC | — | 0.1 mi |
| #64610 | 161 kV | TENNESSEE VALLEY AUTHORITY | IN SERVICE | 18.7 mi |
| #64611 | 161 kV | DUKE ENERGY CAROLINAS, LLC | IN SERVICE | 10.1 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of HIWASSEE DAM, 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 |
|---|---|---|---|---|---|---|---|
| ETOWAH DISTRICT | Substation-Adjacent | TN | McMinn County | 161 kV | 100 MW | 3.7 yrs | 69.0 |
| TAP152030 | Substation-Adjacent | TN | McMinn County | 161 kV | 100 MW | 3.7 yrs | 67.7 |
| TELLICO | Substation-Adjacent | TN | Monroe County | 161 kV | 100 MW | 3.7 yrs | 67.7 |
| ETOWAH SWITCHING STATION | Substation-Adjacent | TN | McMinn County | 161 kV | 100 MW | 3.7 yrs | 66.7 |
| UNKNOWN115787 | Substation-Adjacent | TN | McMinn County | 161 kV | 100 MW | 3.7 yrs | 66.5 |
| TAP145972 | Substation-Adjacent | GA | Fannin County | 161 kV | 100 MW | 5.8 yrs | 66.1 |
| UNKNOWN109616 | Substation-Adjacent | NC | Cherokee County | 161 kV | 100 MW | 3.7 yrs | 66.0 |
| TAP152045 | Substation-Adjacent | TN | Monroe County | 161 kV | 100 MW | 3.7 yrs | 65.9 |
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 HIWASSEE DAM 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.