JASPER
SubstationAlabama · TENNESSEE VALLEY AUTHORITY
JASPER is an electric transmission substation in Alabama, operated by TENNESSEE VALLEY AUTHORITY. It is classified as sub-transmission (138 kv) and connects 1 transmission line. 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 |
|---|---|---|---|---|
| #19614 | 161 kV | TENNESSEE VALLEY AUTHORITY | IN SERVICE | 6.2 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 |
|---|---|---|---|---|---|---|---|
| WIDOWS CREEK 500KV | Substation-Adjacent | GA | Dade County | 500 kV | 1,000 MW | 3.7 yrs | 78.8 |
| WIDOWS CREEK | Substation-Adjacent | GA | Dade County | 500 kV | 1,000 MW | 3.7 yrs | 78.2 |
| RACCOON MOUNTAIN | Substation-Adjacent | GA | Dade County | 500 kV | 1,000 MW | 3.7 yrs | 76.9 |
| TAP153403 | Substation-Adjacent | AL | Jackson County | 500 kV | 1,000 MW | 3.7 yrs | 76.7 |
| RIDGEDALE | Substation-Adjacent | TN | Hamilton County | 161 kV | 100 MW | 3.7 yrs | 75.1 |
| HAWTHORNE | Substation-Adjacent | TN | Hamilton County | 161 kV | 100 MW | 3.7 yrs | 74.7 |
| MOCCASIN | Substation-Adjacent | TN | Hamilton County | 161 kV | 100 MW | 3.7 yrs | 74.4 |
| UNKNOWN109680 | Substation-Adjacent | GA | Dade County | 230 kV | 300 MW | 3.7 yrs | 74.3 |
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, Alabama. 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.