HARLLEE BRANCH
SubstationSouth Carolina · GEORGIA POWER CO
HARLLEE BRANCH is an electric transmission substation in South Carolina, operated by GEORGIA POWER CO. It is classified as high-voltage (230 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
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 |
|---|---|---|---|---|
| #513 | 230 kV | GEORGIA POWER CO | IN SERVICE | 28.0 mi |
| #974 | 230 kV | GEORGIA TRANSMISSION CORP | IN SERVICE | 20.6 mi |
| #21336 | 230 kV | GEORGIA POWER CO | IN SERVICE | 54.9 mi |
| #32430 | 230 kV | GEORGIA POWER CO | IN SERVICE | 9.8 mi |
| #33485 | 230 kV | GEORGIA POWER CO | IN SERVICE | 1.3 mi |
| #35120 | 230 kV | GEORGIA POWER CO | IN SERVICE | 40.5 mi |
| #39177 | 230 kV | GEORGIA POWER CO | IN SERVICE | 9.8 mi |
| #39956 | 230 kV | GEORGIA TRANSMISSION CORP | IN SERVICE | 20.6 mi |
| #44429 | 230 kV | GEORGIA POWER CO | IN SERVICE | 5.9 mi |
| #64250 | 230 kV | GEORGIA POWER CO | — | 0.1 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of HARLLEE BRANCH, 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 |
|---|---|---|---|---|---|---|---|
| UNKNOWN114837 | Substation-Adjacent | GA | Bibb County | 230 kV | 300 MW | 5.8 yrs | 72.6 |
| Greenfield (UNKNOWN115783 - WARTHEN SUBSTA) | Greenfield | GA | Jones County | 500 kV | 1,000 MW | 3.7 yrs | 70.6 |
| UNKNOWN113529 | Substation-Adjacent | GA | Putnam County | 230 kV | 300 MW | 5.8 yrs | 70.5 |
| UNKNOWN113537 | Substation-Adjacent | GA | Twiggs County | 230 kV | 300 MW | 3.7 yrs | 69.8 |
| Greenfield (UNKNOWN115783 - WARTHEN SUBSTA) | Greenfield | GA | Jones County | 500 kV | 1,000 MW | 3.7 yrs | 69.7 |
| UNKNOWN113529 | Substation-Adjacent | GA | Putnam County | 230 kV | 300 MW | 3.7 yrs | 69.6 |
| Greenfield (UNKNOWN115783 - WARTHEN SUBSTA) | Greenfield | GA | Jones County | 500 kV | 1,000 MW | 3.7 yrs | 69.5 |
| UNKNOWN112280 | Substation-Adjacent | GA | Wilkinson County | 230 kV | 300 MW | 3.7 yrs | 69.4 |
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 HARLLEE BRANCH 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.