BIG SANDY
SubstationKentucky · KENTUCKY POWER CO
BIG SANDY is an electric transmission substation in Kentucky, operated by KENTUCKY POWER CO. It is classified as high-voltage (345 kv) and connects 8 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 |
|---|---|---|---|---|
| #64707 | 345 kV | KENTUCKY POWER CO | — | 0.1 mi |
| #23587 | 138 kV | — | IN SERVICE | 2.3 mi |
| #29916 | 138 kV | KENTUCKY POWER CO | IN SERVICE | 7.0 mi |
| #33609 | 138 kV | KENTUCKY POWER CO | IN SERVICE | 33.0 mi |
| #16236 | 138 kV | KENTUCKY POWER CO | IN SERVICE | 9.6 mi |
| #38592 | 138 kV | KENTUCKY POWER CO | IN SERVICE | 0.9 mi |
| #48374 | 138 kV | — | IN SERVICE | 13.0 mi |
| #36854 | 138 kV | KENTUCKY POWER CO | IN SERVICE | 33.0 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of BIG SANDY, 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 |
|---|---|---|---|---|---|---|---|
| BROADFORD (765 KV) | Substation-Adjacent | KY | Lawrence County | 765 kV | 1,000 MW | 3.6 yrs | 73.5 |
| TRISTATE | Substation-Adjacent | KY | Boyd County | 345 kV | 600 MW | 3.2 yrs | 73.3 |
| HANGING ROCK | Substation-Adjacent | KY | Boyd County | 765 kV | 1,000 MW | 3.2 yrs | 72.0 |
| TRISTATE | Substation-Adjacent | KY | Boyd County | 345 kV | 600 MW | 3.6 yrs | 71.0 |
| BAKER | Substation-Adjacent | OH | Lawrence County | 765 kV | 1,000 MW | 3.2 yrs | 70.3 |
| BIG SANDY | Substation-Adjacent | KY | Lawrence County | 345 kV | 600 MW | 3.6 yrs | 70.2 |
| UNKNOWN121310 | Substation-Adjacent | KY | Boyd County | 138 kV | 100 MW | 3.2 yrs | 68.9 |
| Greenfield (NORTH PROCTORVILLE SUBSTATION ) | Greenfield | WV | Cabell County | 765 kV | 1,000 MW | 3.2 yrs | 68.1 |
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.
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This page shows a public slice of the GridCensus dataset for BIG SANDY substation, Kentucky. 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.