DUNCANVILLE S.S.
SubstationAlabama · ALABAMA POWER CO
DUNCANVILLE S.S. is an electric transmission substation in Alabama, operated by ALABAMA POWER CO. It is classified as high-voltage (230 kv) and connects 3 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 |
|---|---|---|---|---|
| #5229 | 230 kV | ALABAMA POWER CO | IN SERVICE | 26.7 mi |
| #35770 | 230 kV | ALABAMA POWER CO | IN SERVICE | 38.0 mi |
| #36651 | 230 kV | ALABAMA POWER CO | IN SERVICE | 6.7 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of DUNCANVILLE S.S., 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 |
|---|---|---|---|---|---|---|---|
| SOUTH BESSEMER | Substation-Adjacent | AL | Bibb County | 500 kV | 1,000 MW | 3.7 yrs | 73.4 |
| TUSCALOOSA T.S. | Substation-Adjacent | AL | Tuscaloosa County | 230 kV | 300 MW | 3.7 yrs | 71.1 |
| Greenfield (UNKNOWN109244 - SOUTH BESSEMER) | Greenfield | AL | Jefferson County | 500 kV | 1,000 MW | 3.7 yrs | 68.6 |
| BRADLEY ROAD D.S. | Substation-Adjacent | AL | Tuscaloosa County | 230 kV | 300 MW | 3.7 yrs | 68.1 |
| UNKNOWN110386 | Substation-Adjacent | AL | Tuscaloosa County | 115 kV | 100 MW | 3.7 yrs | 67.8 |
| HOLT T.S. | Substation-Adjacent | AL | Tuscaloosa County | 230 kV | 300 MW | 3.7 yrs | 67.5 |
| UNKNOWN110403 | Substation-Adjacent | AL | Tuscaloosa County | 115 kV | 100 MW | 3.7 yrs | 67.3 |
| UNKNOWN110388 | Substation-Adjacent | AL | Tuscaloosa County | 115 kV | 100 MW | 3.7 yrs | 67.3 |
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 DUNCANVILLE S.S. 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.