JONESBORO SPA
SubstationArkansas · ENTERGY ARKANSAS INC
JONESBORO SPA is an electric transmission substation in Arkansas, operated by ENTERGY ARKANSAS INC. It is classified as sub-transmission (138 kv) and connects 3 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 |
|---|---|---|---|---|
| #30203 | 161 kV | ENTERGY ARKANSAS INC | IN SERVICE | 0.9 mi |
| #34323 | 161 kV | SOUTHWESTERN POWER ADMINISTRATION | IN SERVICE | 63.5 mi |
| #64613 | 161 kV | ENTERGY ARKANSAS INC | — | 0.1 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of JONESBORO SPA, 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 |
|---|---|---|---|---|---|---|---|
| INDEPENDENCE SUBSTATION | Substation-Adjacent | AR | Jackson County | 500 kV | 1,000 MW | 1.4 yrs | 69.2 |
| JONESBORO EHV | Substation-Adjacent | AR | Craighead County | 500 kV | 1,000 MW | 1.4 yrs | 66.5 |
| Greenfield (INDEPENDENCE SUBSTATION - JONE) | Greenfield | AR | Jackson County | 500 kV | 1,000 MW | 1.4 yrs | 65.6 |
| Greenfield (INDEPENDENCE SUBSTATION - JONE) | Greenfield | AR | Jackson County | 500 kV | 1,000 MW | 1.4 yrs | 65.3 |
| UNKNOWN117237 | Substation-Adjacent | AR | Jackson County | 161 kV | 100 MW | 1.4 yrs | 65.3 |
| Greenfield (INDEPENDENCE SUBSTATION - JONE) | Greenfield | AR | Craighead County | 500 kV | 1,000 MW | 1.4 yrs | 64.7 |
| Greenfield (INDEPENDENCE SUBSTATION - JONE) | Greenfield | AR | Jackson County | 500 kV | 1,000 MW | 1.4 yrs | 64.4 |
| Greenfield (UNKNOWN117348 - INDEPENDENCE S) | Greenfield | AR | Independence County | 500 kV | 1,000 MW | 1.4 yrs | 64.3 |
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 JONESBORO SPA 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.