UNION
SubstationGeorgia · GEORGIA POWER CO
UNION is an electric transmission substation in Georgia, operated by GEORGIA POWER CO. It is classified as extra-high-voltage (500 kv) and connects 10 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 |
|---|---|---|---|---|
| #45185 | 500 kV | GEORGIA POWER CO | IN SERVICE | 12.7 mi |
| #43431 | 500 kV | GEORGIA POWER CO | IN SERVICE | 29.8 mi |
| #45155 | 500 kV | GEORGIA POWER CO | IN SERVICE | 29.8 mi |
| #29462 | 230 kV | GEORGIA POWER CO | IN SERVICE | 3.1 mi |
| #45083 | 230 kV | GEORGIA POWER CO | IN SERVICE | 7.1 mi |
| #48324 | 230 kV | GEORGIA POWER CO | IN SERVICE | 11.7 mi |
| #1493 | 230 kV | GEORGIA POWER CO | IN SERVICE | 11.8 mi |
| #48419 | 230 kV | GEORGIA POWER CO | IN SERVICE | 5.6 mi |
| #7370 | 230 kV | GEORGIA POWER CO | IN SERVICE | 9.6 mi |
| #27050 | 230 kV | GEORGIA POWER CO | IN SERVICE | 3.1 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of UNION, 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 |
|---|---|---|---|---|---|---|---|
| VILLA RICA | Substation-Adjacent | GA | Douglas County | 500 kV | 1,000 MW | 5.8 yrs | 79.9 |
| UNION | Substation-Adjacent | GA | Clayton County | 500 kV | 1,000 MW | 5.8 yrs | 79.9 |
| KLONDIKE | Substation-Adjacent | GA | Rockdale County | 500 kV | 1,000 MW | 5.8 yrs | 79.8 |
| O'HARA | Substation-Adjacent | GA | Henry County | 500 kV | 1,000 MW | 5.8 yrs | 79.7 |
| Jack McDonough | Brownfield | GA | Fulton | — | 598 MW | — | 77.9 |
| UNKNOWN115644 | Substation-Adjacent | GA | Douglas County | 230 kV | 300 MW | 5.8 yrs | 77.1 |
| UNKNOWN111545 | Substation-Adjacent | GA | Fulton County | 230 kV | 300 MW | 5.8 yrs | 77.0 |
| UNKNOWN111355 | Substation-Adjacent | GA | Fulton County | 230 kV | 300 MW | 5.8 yrs | 76.8 |
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 UNION substation, Georgia. 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.