MCINTOSH
SubstationSouth Carolina · GEORGIA POWER CO
MCINTOSH is an electric transmission substation in South Carolina, operated by GEORGIA POWER CO. It is classified as high-voltage (230 kv) and connects 11 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
Ownership & operation
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #4501 | 230 kV | GEORGIA POWER CO | IN SERVICE | 0.5 mi |
| #5734 | 230 kV | GEORGIA POWER CO | IN SERVICE | 16.3 mi |
| #7728 | 230 kV | GEORGIA POWER CO | IN SERVICE | 0.5 mi |
| #20243 | 230 kV | GEORGIA POWER CO | IN SERVICE | 4.6 mi |
| #23979 | 230 kV | GEORGIA TRANSMISSION CORP | IN SERVICE | 8.6 mi |
| #30999 | 230 kV | — | IN SERVICE | 4.6 mi |
| #36538 | 230 kV | GEORGIA POWER CO | — | 0.7 mi |
| #39681 | 230 kV | GEORGIA POWER CO | IN SERVICE | 16.3 mi |
| #42659 | 230 kV | GEORGIA POWER CO | IN SERVICE | 37.6 mi |
| #47158 | 230 kV | GEORGIA POWER CO | IN SERVICE | 1.7 mi |
| #49970 | 230 kV | GEORGIA POWER CO | IN SERVICE | 0.6 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of MCINTOSH, 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 |
|---|---|---|---|---|---|---|---|
| MCINTOSH COMBINED CYCLE FACILITY | Substation-Adjacent | GA | Effingham County | 230 kV | 300 MW | 3.7 yrs | 75.1 |
| EFFINGHAM COUNTY POWER PROJECT | Substation-Adjacent | GA | Effingham County | 230 kV | 300 MW | 3.7 yrs | 74.6 |
| BLANDFORD | Substation-Adjacent | GA | Effingham County | 500 kV | 1,000 MW | 3.7 yrs | 74.3 |
| UNKNOWN112088 | Substation-Adjacent | GA | Effingham County | 230 kV | 300 MW | 3.7 yrs | 73.1 |
| WEST MCINTOSH | Substation-Adjacent | GA | Effingham County | 500 kV | 1,000 MW | 3.7 yrs | 72.2 |
| DORCHESTER | Substation-Adjacent | GA | Chatham County | 230 kV | 300 MW | 5.8 yrs | 71.5 |
| Greenfield (WEST MCINTOSH - UNKNOWN155812) | Greenfield | GA | Effingham County | 500 kV | 1,000 MW | 3.7 yrs | 71.5 |
| SANTEE COOPER | Substation-Adjacent | SC | Beaufort County | 230 kV | 300 MW | 3.7 yrs | 71.4 |
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 MCINTOSH substation, South Carolina. 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.