SAREPTA
SubstationArkansas · ENTERGY ARKANSAS INC
SAREPTA is an electric transmission substation in Arkansas, operated by ENTERGY ARKANSAS INC. It is classified as high-voltage (345 kv) and connects 2 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 |
|---|---|---|---|---|
| #2393 | 345 kV | ENTERGY ARKANSAS INC | IN SERVICE | 57.7 mi |
| #3672 | 115 kV | — | IN SERVICE | 6.6 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of SAREPTA, 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 |
|---|---|---|---|---|---|---|---|
| SAREPTA | Substation-Adjacent | LA | Webster Parish | 345 kV | 600 MW | 3.4 yrs | 72.0 |
| Greenfield (SAREPTA - LONGWOOD) | Greenfield | LA | Bossier Parish | 345 kV | 600 MW | 3.4 yrs | 68.3 |
| UNKNOWN116790 | Substation-Adjacent | LA | Bossier Parish | 138 kV | 100 MW | 3.4 yrs | 68.0 |
| UNKNOWN116792 | Substation-Adjacent | LA | Bossier Parish | 138 kV | 100 MW | 3.4 yrs | 67.8 |
| RAINES ROAD | Substation-Adjacent | LA | Caddo Parish | 138 kV | 100 MW | 3.4 yrs | 66.9 |
| UNKNOWN116789 | Substation-Adjacent | LA | Bossier Parish | 138 kV | 100 MW | 3.4 yrs | 66.4 |
| ARSENAL HILL | Substation-Adjacent | LA | Caddo Parish | 138 kV | 100 MW | 3.4 yrs | 66.2 |
| UNKNOWN116803 | Substation-Adjacent | LA | Webster Parish | 115 kV | 100 MW | 1.4 yrs | 65.5 |
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 SAREPTA substation, Arkansas. 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.