CUMBERLAND 500KV
SubstationTennessee · TENNESSEE VALLEY AUTHORITY
CUMBERLAND 500KV is an electric transmission substation in Tennessee, operated by TENNESSEE VALLEY AUTHORITY. It is classified as extra-high-voltage (500 kv) and connects 4 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 |
|---|---|---|---|---|
| #37812 | 500 kV | TENNESSEE VALLEY AUTHORITY | IN SERVICE | 38.6 mi |
| #45561 | 500 kV | TENNESSEE VALLEY AUTHORITY | IN SERVICE | 48.1 mi |
| #59308 | 500 kV | TENNESSEE VALLEY AUTHORITY | IN SERVICE | 33.2 mi |
| #64004 | 161 kV | TENNESSEE VALLEY AUTHORITY | IN SERVICE | 0.2 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of CUMBERLAND 500KV, 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 |
|---|---|---|---|---|---|---|---|
| MONTGOMERY | Substation-Adjacent | TN | Montgomery County | 500 kV | 1,000 MW | 3.7 yrs | 78.3 |
| CUMBERLAND 500KV | Substation-Adjacent | TN | Houston County | 500 kV | 1,000 MW | 3.7 yrs | 74.3 |
| TAP155107 | Substation-Adjacent | TN | Montgomery County | 161 kV | 100 MW | 3.7 yrs | 72.8 |
| Greenfield (MONTGOMERY - WILSON) | Greenfield | TN | Montgomery County | 500 kV | 1,000 MW | 3.7 yrs | 72.8 |
| UNKNOWN170509 | Substation-Adjacent | TN | Montgomery County | 161 kV | 100 MW | 3.7 yrs | 72.8 |
| Greenfield (MONTGOMERY - CUMBERLAND 500KV) | Greenfield | TN | Montgomery County | 500 kV | 1,000 MW | 3.7 yrs | 72.7 |
| Greenfield (DAVIDSON - CUMBERLAND 500KV) | Greenfield | TN | Dickson County | 500 kV | 1,000 MW | 3.7 yrs | 72.4 |
| Greenfield (MONTGOMERY - DAVIDSON) | Greenfield | TN | Montgomery County | 500 kV | 1,000 MW | 3.7 yrs | 72.2 |
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 CUMBERLAND 500KV 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.