Greenfield (UNKNOWN107760 - MABELVALE SUBS)
GreenfieldPulaski County, Arkansas · MISO
At a glance
Greenfield (UNKNOWN107760 - MABELVALE SUBS) is a greenfield datacenter candidate site in Pulaski County, Arkansas, scoring 53.8/100 DC Readiness — 148th of 166 scored sites in the county. Its nearest substation is UNKNOWN107760. It sits in the MISO grid region and the ENTERGY ARKANSAS LLC service territory, where interconnection has averaged 4.3 years from request to operation. GridCensus catalogs 100 MW of candidate capacity here.
Power & interconnection
Speed to power
Middle-of-the-pack interconnection conditions for this grid.
Connectivity
Site characteristics
Risk & environment
Location context
Regulatory climate
No notable statewide DC restriction on record; confirm local zoning and utility tariffs.
Site location
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How does Greenfield (UNKNOWN107760 - MABELVALE SUBS) compare with other sites in Pulaski County?
Greenfield (UNKNOWN107760 - MABELVALE SUBS) ranks 148th of 166 scored candidate sites in Pulaski County. Its 53.8/100 is roughly in line with the county average of 56.4. It is roughly in line with the Arkansas average of 53.6 and roughly in line with the national average of 53.2.
Against the Arkansas average, its strongest sub-score is fiber connectivity (90 vs 70) and its weakest is power availability (28 vs 42). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.
How close is Greenfield (UNKNOWN107760 - MABELVALE SUBS) to power, fiber and other datacenters?
The nearest mapped substation, UNKNOWN107760, is the closest grid connection point on record and operates at 115 kV. For connectivity, the nearest internet exchange facility is TIerPoint Little Rock at 2.9 miles. 11 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is TierPoint Little Rock, 2.9 miles away.
What are the flood, water and hazard risks at Greenfield (UNKNOWN107760 - MABELVALE SUBS)?
At the county level, FEMA's National Risk Index rates Pulaski County "Relatively High".
Full DC Readiness breakdown
All 13 weighted sub-scores (0–100) behind the composite DC Readiness score.
Nearby comparable sites
Other scored datacenter candidate sites in Pulaski County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| MABELVALE SUBSTATION | Substation-Adjacent | 500 kV | 1,000 MW | 4.3 yrs | 68.6 |
| WRIGHTSVILLE | Substation-Adjacent | 500 kV | 1,000 MW | 4.3 yrs | 67.5 |
| MAYFLOWER | Substation-Adjacent | 500 kV | 1,000 MW | 4.3 yrs | 67.5 |
| OZ Pulaski | Greenfield | — | — | 4.3 yrs | 64.5 |
| EC Near Cecil Lynch | Greenfield | — | — | 4.3 yrs | 62.4 |
| UNKNOWN107783 | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 61.5 |
| EC Near Archer Daniels Midland Little Rock | Greenfield | — | — | 4.3 yrs | 61.3 |
| UNKNOWN117267 | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 60.7 |
Greenfield (UNKNOWN107760 - MABELVALE SUBS): common questions
What is the DC Readiness score of Greenfield (UNKNOWN107760 - MABELVALE SUBS)?
Greenfield (UNKNOWN107760 - MABELVALE SUBS) scores 53.8/100 on the GridCensus DC Readiness scale, rated fair. It ranks 148th of 166 scored sites in Pulaski County. The Pulaski County average is 56.4 and the Arkansas average is 53.6.
What is the nearest substation to Greenfield (UNKNOWN107760 - MABELVALE SUBS)?
The nearest mapped substation is UNKNOWN107760, at 115 kV. GridCensus catalogs 100 MW of candidate capacity for the site.
Which electric utility serves Greenfield (UNKNOWN107760 - MABELVALE SUBS)?
ENTERGY ARKANSAS LLC (investor owned) holds the retail service territory that contains the site; its holding company is ENTERGY CORP.
What grid region is Greenfield (UNKNOWN107760 - MABELVALE SUBS) in?
Greenfield (UNKNOWN107760 - MABELVALE SUBS) is in the MISO region. Projects interconnecting there have averaged a 4.3-year wait from queue request to operation.
How far is Greenfield (UNKNOWN107760 - MABELVALE SUBS) from an internet exchange?
The nearest internet exchange facility is TIerPoint Little Rock, about 2.9 miles away; 11 fiber providers report service at the location.
Related pages
About this data
Source: GridCensus composite of HIFLD transmission and substation data, EIA, FEMA National Risk Index, FCC broadband data, PeeringDB and ISO interconnection queues, as published October 10, 2026 — GridCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “Greenfield (UNKNOWN107760 - MABELVALE SUBS), Pulaski County, AR”, https://gridcensus.com/datacenter-sites/arkansas/pulaski-county/greenfield-unknown107760-mabelvale-subs-f33859c2 (data as of October 10, 2026).
Dataset updated . Screening estimates derived from public data sources.
Figures are screening estimates derived from public infrastructure data. Catalogued capacity reflects theoretical candidate capacity, not deliverable or committed interconnection. Confirm all values with the utility, ISO, and on-the-ground due diligence.
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Every site and score for Greenfield (UNKNOWN107760 - MABELVALE SUBS), Pulaski County 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.