TAP173390
SubstationAlabama · TENNESSEE VALLEY AUTHORITY
TAP173390 is an electric transmission substation in Alabama, operated by TENNESSEE VALLEY AUTHORITY. It is classified as sub-transmission (138 kv) and connects 2 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 |
|---|---|---|---|---|
| #16855 | 161 kV | TENNESSEE VALLEY AUTHORITY | IN SERVICE | 9.3 mi |
| #57898 | 161 kV | — | IN SERVICE | 0.2 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TAP173390, 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 |
|---|---|---|---|---|---|---|---|
| Colbert | Brownfield | AL | Colbert | — | 1,350 MW | — | 72.0 |
| Greenfield (UNION - BROWNS FERRY) | Greenfield | AL | Lawrence County | 500 kV | 1,000 MW | 1.4 yrs | 68.7 |
| PICKWICK LANDING DAM | Substation-Adjacent | AL | Colbert County | 161 kV | 100 MW | 3.7 yrs | 68.5 |
| UNKNOWN156463 | Substation-Adjacent | AL | Lauderdale County | 161 kV | 100 MW | 3.7 yrs | 68.3 |
| Greenfield (UNION - BROWNS FERRY) | Greenfield | MS | Tishomingo County | 500 kV | 1,000 MW | 1.4 yrs | 68.2 |
| Greenfield (UNION - BROWNS FERRY) | Greenfield | AL | Colbert County | 500 kV | 1,000 MW | 1.4 yrs | 68.1 |
| UNKNOWN157007 | Substation-Adjacent | AL | Lauderdale County | 161 kV | 100 MW | 3.7 yrs | 68.0 |
| TAP156143 | Substation-Adjacent | AL | Lauderdale County | 161 kV | 100 MW | 3.7 yrs | 68.0 |
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 TAP173390 substation, Alabama. 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.