ROCK-TENN MILL
SubstationAlabama · ALABAMA POWER CO
ROCK-TENN MILL is an electric transmission substation in Alabama, operated by ALABAMA POWER CO. It is classified as sub-transmission (115 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 |
|---|---|---|---|---|
| #18854 | 115 kV | ALABAMA POWER CO | IN SERVICE | 0.3 mi |
| #24160 | 115 kV | ALABAMA POWER CO | — | 0.1 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of ROCK-TENN MILL, 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 |
|---|---|---|---|---|---|---|---|
| Georgia-Pacific Consr Prods LP-Naheola | Brownfield | AL | Marengo | — | 31 MW | — | 66.9 |
| UNKNOWN109551 | Substation-Adjacent | AL | Sumter County | 230 kV | 300 MW | 1.4 yrs | 64.8 |
| TAP143818 | Substation-Adjacent | AL | Hale County | 115 kV | 100 MW | 3.7 yrs | 64.6 |
| UNKNOWN109181 | Substation-Adjacent | AL | Hale County | 115 kV | 100 MW | 3.7 yrs | 64.5 |
| Greenfield (DUNCANVILLE S.S. - GREENE COUN) | Greenfield | AL | Hale County | 230 kV | 300 MW | 3.7 yrs | 64.4 |
| GEORGIA-PACIFIC CONSR PRODS LP-NAHEOLA | Substation-Adjacent | AL | Marengo County | 115 kV | 100 MW | 3.7 yrs | 64.2 |
| UNKNOWN160889 | Substation-Adjacent | AL | Hale County | 115 kV | 100 MW | 3.7 yrs | 64.2 |
| TAP160888 | Substation-Adjacent | AL | Hale County | 115 kV | 100 MW | 3.7 yrs | 64.0 |
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 ROCK-TENN MILL 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.