JASPER
SubstationSouth Carolina · SOUTH CAROLINA ELECTRIC&GAS CO
JASPER is an electric transmission substation in South Carolina, operated by SOUTH CAROLINA ELECTRIC&GAS CO. It is classified as high-voltage (230 kv) and connects 5 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 |
|---|---|---|---|---|
| #19893 | 230 kV | SOUTH CAROLINA ELECTRIC&GAS CO | IN SERVICE | 0.6 mi |
| #42642 | 230 kV | SOUTH CAROLINA ELECTRIC&GAS CO | IN SERVICE | 0.6 mi |
| #56655 | 230 kV | SOUTH CAROLINA ELECTRIC&GAS CO | IN SERVICE | 6.8 mi |
| #58366 | 230 kV | SOUTH CAROLINA ELECTRIC&GAS CO | IN SERVICE | 38.2 mi |
| #64472 | 230 kV | SOUTH CAROLINA ELECTRIC&GAS CO | — | 0.1 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of JASPER, 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 |
| BURTON | Substation-Adjacent | SC | Beaufort County | 230 kV | 300 MW | 3.7 yrs | 72.7 |
| Greenfield (WEST MCINTOSH - UNKNOWN155812) | Greenfield | GA | Screven County | 500 kV | 1,000 MW | 3.7 yrs | 72.5 |
| WEST MCINTOSH | Substation-Adjacent | GA | Effingham County | 500 kV | 1,000 MW | 3.7 yrs | 72.2 |
| UNKNOWN120914 | Substation-Adjacent | SC | Hampton County | 230 kV | 300 MW | 3.7 yrs | 72.2 |
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 JASPER 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.