Greenfield (WHEATON - UNKNOWN163358)
GreenfieldDunn County, Maryland · MISO
At a glance
Greenfield (WHEATON - UNKNOWN163358) is a greenfield datacenter candidate site in Dunn County, Maryland, scoring 53.0/100 DC Readiness — 30th of 32 scored sites in the county. Its nearest substation is WHEATON. It sits in the MISO grid region, where interconnection has averaged 5.3 years from request to operation. GridCensus catalogs 100 MW of candidate capacity here.
Power & interconnection
Speed to power
Deep queue and long historical waits — plan for a multi-year interconnection timeline and engage the utility early.
Connectivity
Site characteristics
Risk & environment
Location context
Regulatory climate
No notable statewide DC restriction on record; confirm local zoning and utility tariffs.
Incentive detail: Enterprise Zone tax credits; TIF available for DC construction in eligible areas.
Site location
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How does Greenfield (WHEATON - UNKNOWN163358) compare with other sites in Dunn County?
Greenfield (WHEATON - UNKNOWN163358) ranks 30th of 32 scored candidate sites in Dunn County. Its 53.0/100 is roughly in line with the county average of 56.5. It is roughly in line with the Maryland average of 52.9 and roughly in line with the national average of 53.2.
Against the Maryland average, its strongest sub-score is speed to power (47 vs 36) and its weakest is power availability (32 vs 39). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.
How close is Greenfield (WHEATON - UNKNOWN163358) to power, fiber and other datacenters?
The nearest mapped substation, WHEATON, is the closest grid connection point on record and operates at 161 kV. For connectivity, the nearest internet exchange facility is 901 Commerce Dr at 73 miles. 11 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is West Wisconsin Telcom DC, 15.8 miles away.
What are the flood, water and hazard risks at Greenfield (WHEATON - UNKNOWN163358)?
At the county level, FEMA's National Risk Index rates Dunn County "Relatively Low".
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 Dunn County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| UNKNOWN163358 | Substation-Adjacent | 161 kV | 100 MW | 4.3 yrs | 61.5 |
| UNKNOWN131979 | Substation-Adjacent | 161 kV | 100 MW | 4.3 yrs | 60.4 |
| Greenfield (UNKNOWN129869 - KING PLANT) | Greenfield | 345 kV | 600 MW | 4.3 yrs | 59.9 |
| UNKNOWN133295 | Substation-Adjacent | 69 kV | 50 MW | 4.3 yrs | 58.8 |
| ELK MOUND | Substation-Adjacent | 69 kV | 50 MW | 4.3 yrs | 58.0 |
| UNKNOWN163255 | Substation-Adjacent | 69 kV | 50 MW | 4.3 yrs | 58.0 |
| TAP163527 | Substation-Adjacent | 69 kV | 50 MW | 4.3 yrs | 58.0 |
| TAP163250 | Substation-Adjacent | 69 kV | 50 MW | 4.3 yrs | 57.9 |
Greenfield (WHEATON - UNKNOWN163358): common questions
What is the DC Readiness score of Greenfield (WHEATON - UNKNOWN163358)?
Greenfield (WHEATON - UNKNOWN163358) scores 53.0/100 on the GridCensus DC Readiness scale, rated fair. It ranks 30th of 32 scored sites in Dunn County. The Dunn County average is 56.5 and the Maryland average is 52.9.
What is the nearest substation to Greenfield (WHEATON - UNKNOWN163358)?
The nearest mapped substation is WHEATON, at 161 kV. GridCensus catalogs 100 MW of candidate capacity for the site.
What grid region is Greenfield (WHEATON - UNKNOWN163358) in?
Greenfield (WHEATON - UNKNOWN163358) is in the MISO region. Projects interconnecting there have averaged a 5.3-year wait from queue request to operation.
How far is Greenfield (WHEATON - UNKNOWN163358) from an internet exchange?
The nearest internet exchange facility is 901 Commerce Dr, about 73 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 (WHEATON - UNKNOWN163358), Dunn County, MD”, https://gridcensus.com/datacenter-sites/maryland/dunn-county/greenfield-wheaton-unknown163358-c44f3353 (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 (WHEATON - UNKNOWN163358), Dunn 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.