COLLINSVILLE
SubstationAlabama · TENNESSEE VALLEY AUTHORITY
COLLINSVILLE 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 |
|---|---|---|---|---|
| #40552 | 161 kV | — | IN SERVICE | 24.5 mi |
| #48063 | 161 kV | TENNESSEE VALLEY AUTHORITY | IN SERVICE | 10.0 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of COLLINSVILLE, 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 |
|---|---|---|---|---|---|---|---|
| Gadsden | Brownfield | AL | Etowah | — | 138 MW | — | 70.3 |
| UNKNOWN110145 | Substation-Adjacent | AL | Etowah County | 230 kV | 300 MW | 3.7 yrs | 69.3 |
| AZCO | Substation-Adjacent | AL | Jackson County | 161 kV | 100 MW | 3.7 yrs | 69.3 |
| Greenfield (TAP152961 - TAP155137) | Greenfield | AL | DeKalb County | 500 kV | 1,000 MW | 3.7 yrs | 68.2 |
| LIM ROCK | Substation-Adjacent | AL | Jackson County | 161 kV | 100 MW | 3.7 yrs | 67.6 |
| Greenfield (TAP152961 - TAP155137) | Greenfield | AL | Marshall County | 500 kV | 1,000 MW | 3.7 yrs | 67.5 |
| TAP150120 | Substation-Adjacent | AL | Calhoun County | 230 kV | 300 MW | 3.7 yrs | 67.2 |
| UNKNOWN172540 | Substation-Adjacent | AL | Etowah County | 115 kV | 100 MW | 3.7 yrs | 67.0 |
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 COLLINSVILLE 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.