TAP149979
SubstationArkansas · ENTERGY ARKANSAS INC
TAP149979 is an electric transmission substation in Arkansas, operated by ENTERGY ARKANSAS INC. It is classified as sub-transmission (115 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
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #4022 | 115 kV | ENTERGY ARKANSAS INC | IN SERVICE | 7.3 mi |
| #5720 | 115 kV | ENTERGY ARKANSAS INC | IN SERVICE | 1.3 mi |
| #29153 | 115 kV | ENTERGY ARKANSAS INC | IN SERVICE | 1.8 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TAP149979, 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 |
|---|---|---|---|---|---|---|---|
| HOT SPRING GENERATING FACILITY | Substation-Adjacent | AR | Hot Spring County | 500 kV | 1,000 MW | 1.4 yrs | 70.2 |
| Greenfield (UNKNOWN107970 - HOT SPRING GEN) | Greenfield | AR | Clark County | 500 kV | 1,000 MW | 1.4 yrs | 67.0 |
| Greenfield (UNKNOWN107970 - HOT SPRING GEN) | Greenfield | AR | Nevada County | 500 kV | 1,000 MW | 1.4 yrs | 66.8 |
| TAP142011 | Substation-Adjacent | AR | Nevada County | 115 kV | 100 MW | 1.4 yrs | 66.3 |
| Greenfield (UNKNOWN107970 - HOT SPRING GEN) | Greenfield | AR | Hot Spring County | 500 kV | 1,000 MW | 1.4 yrs | 66.1 |
| TAP150158 | Substation-Adjacent | AR | Nevada County | 115 kV | 100 MW | 1.4 yrs | 65.8 |
| TAP149967 | Substation-Adjacent | AR | Pike County | 115 kV | 100 MW | 3.4 yrs | 65.0 |
| AMITY | Substation-Adjacent | AR | Pike County | 115 kV | 100 MW | 3.4 yrs | 64.7 |
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 TAP149979 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.