LITTLE ROCK ROLAND ROAD
SubstationArkansas · ENTERGY ARKANSAS INC
At a glance
LITTLE ROCK ROLAND ROAD is an electric transmission substation in Arkansas, on ENTERGY ARKANSAS INC's transmission network. It is classified as sub-transmission (115 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 |
|---|---|---|---|---|
| #108620 | 115 kV | ENTERGY ARKANSAS INC | IN SERVICE | 0.6 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of LITTLE ROCK ROLAND ROAD, 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 |
|---|---|---|---|---|---|---|---|
| MABELVALE SUBSTATION | Substation-Adjacent | AR | Pulaski County | 500 kV | 1,000 MW | 4.3 yrs | 68.6 |
| MAYFLOWER | Substation-Adjacent | AR | Pulaski County | 500 kV | 1,000 MW | 4.3 yrs | 67.5 |
| WRIGHTSVILLE | Substation-Adjacent | AR | Pulaski County | 500 kV | 1,000 MW | 4.3 yrs | 67.5 |
| OZ Pulaski | Greenfield | AR | Pulaski | — | — | 4.3 yrs | 64.5 |
| PLEASANT HILL | Substation-Adjacent | AR | Conway County | 500 kV | 1,000 MW | 4.3 yrs | 62.8 |
| EC Near Cecil Lynch | Greenfield | AR | Pulaski | — | — | 4.3 yrs | 62.4 |
| Greenfield (MABELVALE SUBSTATION - MAYFLOW) | Greenfield | AR | Saline County | 500 kV | 1,000 MW | 4.3 yrs | 61.6 |
| UNKNOWN107783 | Substation-Adjacent | AR | Pulaski County | 115 kV | 100 MW | 4.3 yrs | 61.5 |
How does LITTLE ROCK ROLAND ROAD compare with other substations in Arkansas?
Arkansas has 1,025 substation records in HIFLD, of which 174 carry a station name; the rest are unnamed tap points, risers and line ends. 104 named substations in the state are in LITTLE ROCK ROLAND ROAD's 115–229 kV band (60% of named stations). 22 sit in a higher band. 17 named substations in Arkansas operate at 345 kV or above. The highest voltage recorded in the state is 500 kV, and the state median is 161 kV.
Who owns the transmission lines at LITTLE ROCK ROLAND ROAD?
The 1 connected line listed above is owned by ENTERGY ARKANSAS INC. Line voltages range from 115 kV to 115 kV. Their combined recorded length is about 0.6 miles.
How do candidate sites near LITTLE ROCK ROLAND ROAD score?
The 8 highest-scoring candidate sites within about 25 miles range from 62 to 69 on the 0–100 DC Readiness scale. They fall in Pulaski County, Pulaski, Conway County, Saline County. The Arkansas average across 1,651 scored sites is 53.6. 758 of those Arkansas sites are classed as substation sites (candidate locations generated at an existing substation).
Frequently asked questions
What voltage is LITTLE ROCK ROLAND ROAD substation?
LITTLE ROCK ROLAND ROAD has a maximum voltage of 115 kV. That places it in the 115–229 kV band. The median named US substation in this dataset is 115 kV, so LITTLE ROCK ROLAND ROAD is at the national midpoint.
How many transmission lines connect to LITTLE ROCK ROLAND ROAD substation?
1 transmission line terminate at or pass through LITTLE ROCK ROLAND ROAD in the HIFLD line data. The connected lines listed here run at 115 kV. Together the listed lines cover about 0.6 miles.
Who owns LITTLE ROCK ROLAND ROAD substation?
HIFLD does not publish substation owners directly. Most of the transmission lines that end at LITTLE ROCK ROLAND ROAD belong to ENTERGY ARKANSAS INC. GridCensus derives this from the line data, so confirm ownership with the utility for anything contractual.
Where is LITTLE ROCK ROLAND ROAD substation located?
LITTLE ROCK ROLAND ROAD is in Arkansas at 34.8505, -92.4851. The datacenter candidate sites closest to it are in Pulaski County, Pulaski, Conway County.
Are there datacenter candidate sites near LITTLE ROCK ROLAND ROAD substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of LITTLE ROCK ROLAND ROAD. The highest-scoring is MABELVALE SUBSTATION at 69/100. Across Arkansas, the average DC Readiness score is 53.6.
Other 115 kV substations in Arkansas
- NORTH LITTLE ROCK LEVY· 4 lines
- PINE BLUFF I.P SW STA· 4 lines
- PINE BLUFF SOUTH· 4 lines
- WARD· 4 lines
- BAUXITE· 3 lines
- DELUCE· 3 lines
- ENGLAND· 3 lines
- ENTERGY SUB STATION SOUTH· 3 lines
- All named substations in Arkansas· 174 stations
- Datacenter candidate sites in Arkansas· 1,651 sites
- Brownfield and retired plant sites in Arkansas
- Substations by state
About this data
Source: HIFLD Electric Substations and Transmission Lines (U.S. Department of Homeland Security), as published June 29, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “LITTLE ROCK ROLAND ROAD substation, Arkansas”, https://gridcensus.com/substations/arkansas/little-rock-roland-road-6e2cd6d6 (data as of June 29, 2026).
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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Every site and score for LITTLE ROCK ROLAND ROAD substation, Arkansas is free to browse. Pro adds Watchtower on 25 sites, alerts when new candidate sites, datacenters or interconnection-queue requests appear in your markets, score and capacity history, and CSV export. Enterprise adds team seats, weekly data files for all 147,272 sites, the REST API and an MCP server for AI tools.