Greenfield (UNKNOWN118392 - UNKNOWN133415)
GreenfieldMayes County, Oklahoma · SPP
At a glance
Greenfield (UNKNOWN118392 - UNKNOWN133415) is a greenfield datacenter candidate site in Mayes County, Oklahoma, scoring 58.0/100 DC Readiness — 24th of 45 scored sites in the county. Its nearest substation is UNKNOWN118392. It sits in the SPP grid region and the PUBLIC SERVICE CO OF OKLAHOMA service territory, where interconnection has averaged 4.3 years from request to operation. GridCensus catalogs 600 MW of candidate capacity here.
Power & interconnection
Speed to power
Middle-of-the-pack interconnection conditions for this grid.
Connectivity
Risk & environment
Location context
Regulatory climate
No notable statewide DC restriction on record; confirm local zoning and utility tariffs.
Incentive detail: Sales tax exemption on DC equipment; 5-year ad valorem tax exemption.
Site location
Get alerts
Track Greenfield (UNKNOWN118392 - UNKNOWN133415)
Get an email when its DC-readiness score, available capacity, or interconnection-queue status changes.
How does Greenfield (UNKNOWN118392 - UNKNOWN133415) compare with other sites in Mayes County?
Greenfield (UNKNOWN118392 - UNKNOWN133415) ranks 24th of 45 scored candidate sites in Mayes County. Its 58.0/100 is roughly in line with the county average of 57.5. It is roughly in line with the Oklahoma average of 52.9 and roughly in line with the national average of 53.2.
Against the Oklahoma average, its strongest sub-score is power availability (59 vs 39) and its weakest is speed to power (56 vs 56). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.
How close is Greenfield (UNKNOWN118392 - UNKNOWN133415) to power, fiber and other datacenters?
The nearest mapped substation, UNKNOWN118392, is the closest grid connection point on record and operates at 345 kV. The nearest located transmission bottleneck is TMP270_23432 (SPP), 75 miles away. For connectivity, the nearest internet exchange facility is Lake Region Technology & Communications at 20.2 miles. 8 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is Google Pryor, 11.9 miles away.
What are the flood, water and hazard risks at Greenfield (UNKNOWN118392 - UNKNOWN133415)?
At the county level, FEMA's National Risk Index rates Mayes 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 Mayes County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| UNKNOWN118392 | Substation-Adjacent | 345 kV | 600 MW | 4.3 yrs | 68.1 |
| CHOUTEAU | Substation-Adjacent | 345 kV | 600 MW | 4.3 yrs | 64.5 |
| EC Coal Mayes County | Greenfield | — | — | 4.3 yrs | 63.5 |
| EC Near GREC | Greenfield | — | — | 4.3 yrs | 62.7 |
| EC Near GREC | Greenfield | — | — | 4.3 yrs | 62.1 |
| OZ Mayes | Greenfield | — | — | 4.3 yrs | 61.6 |
| EC Near GREC | Greenfield | — | — | 4.3 yrs | 60.6 |
| EC Near GREC | Greenfield | — | — | 4.3 yrs | 60.1 |
Greenfield (UNKNOWN118392 - UNKNOWN133415): common questions
What is the DC Readiness score of Greenfield (UNKNOWN118392 - UNKNOWN133415)?
Greenfield (UNKNOWN118392 - UNKNOWN133415) scores 58.0/100 on the GridCensus DC Readiness scale, rated good. It ranks 24th of 45 scored sites in Mayes County. The Mayes County average is 57.5 and the Oklahoma average is 52.9.
What is the nearest substation to Greenfield (UNKNOWN118392 - UNKNOWN133415)?
The nearest mapped substation is UNKNOWN118392, at 345 kV. GridCensus catalogs 600 MW of candidate capacity for the site.
Which electric utility serves Greenfield (UNKNOWN118392 - UNKNOWN133415)?
PUBLIC SERVICE CO OF OKLAHOMA (investor owned) holds the retail service territory that contains the site; its holding company is AMERICAN ELECTRIC POWER CO.
What grid region is Greenfield (UNKNOWN118392 - UNKNOWN133415) in?
Greenfield (UNKNOWN118392 - UNKNOWN133415) is in the SPP region. Projects interconnecting there have averaged a 4.3-year wait from queue request to operation.
How far is Greenfield (UNKNOWN118392 - UNKNOWN133415) from an internet exchange?
The nearest internet exchange facility is Lake Region Technology & Communications, about 20.2 miles away; 8 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 (UNKNOWN118392 - UNKNOWN133415), Mayes County, OK”, https://gridcensus.com/datacenter-sites/oklahoma/mayes-county/greenfield-unknown118392-unknown133415-852143ec (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.
Go deeper than the public screen
Every site and score for Greenfield (UNKNOWN118392 - UNKNOWN133415), Mayes 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.