EC Coal Rosebud County
GreenfieldRosebud County, Montana · SPP
At a glance
EC Coal Rosebud County is a greenfield datacenter candidate site in Rosebud County, Montana, scoring 57.9/100 DC Readiness — 30th of 53 scored sites in the county. It sits in the SPP grid region and the MID-YELLOWSTONE ELEC COOP, INC service territory, where interconnection has averaged 1.1 years from request to operation.
Power & interconnection
Speed to power
Shorter queues and healthier completion here — a faster path to energization than the national norm.
Connectivity
Site characteristics
Risk & environment
Location context
Regulatory climate
No notable statewide DC restriction on record; confirm local zoning and utility tariffs.
Incentive detail: New/expanding industry tax abatement available for DC construction.
Site location
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How does EC Coal Rosebud County compare with other sites in Rosebud County?
EC Coal Rosebud County ranks 30th of 53 scored candidate sites in Rosebud County. Its 57.9/100 is roughly in line with the county average of 58.8. It is roughly in line with the Montana average of 54.3 and roughly in line with the national average of 53.2.
Against the Montana average, its strongest sub-score is speed to power (68 vs 64) and its weakest is fiber connectivity (47 vs 61). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.
How close is EC Coal Rosebud County to power, fiber and other datacenters?
For connectivity, the nearest internet exchange facility is ACT Colstrip at 50.7 miles. 3 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is ACT Colstrip, 50.7 miles away.
What are the flood, water and hazard risks at EC Coal Rosebud County?
The site is in FEMA flood zone X, outside the Special Flood Hazard Area (minimal or moderate flood risk). WRI rates baseline water stress at 2.20 on a 0–5 scale. No mapped wetlands are recorded on the parcel. At the county level, FEMA's National Risk Index rates Rosebud County "Very 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 Rosebud County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| COLSTRIP | Substation-Adjacent | 500 kV | 1,000 MW | 1.1 yrs | 75.8 |
| EC Near Colstrip | Greenfield | — | — | 1.1 yrs | 65.7 |
| EC Coal Rosebud County | Greenfield | — | — | 1.1 yrs | 65.7 |
| ROSEBUD CREEK | Substation-Adjacent | 230 kV | 300 MW | 1.1 yrs | 65.2 |
| EC Near Colstrip | Greenfield | — | — | 1.1 yrs | 64.9 |
| EC Near Colstrip | Greenfield | — | — | 1.1 yrs | 64.9 |
| EC Near Colstrip | Greenfield | — | — | 1.1 yrs | 64.6 |
| EC Near Colstrip | Greenfield | — | — | 1.1 yrs | 64.4 |
EC Coal Rosebud County: common questions
What is the DC Readiness score of EC Coal Rosebud County?
EC Coal Rosebud County scores 57.9/100 on the GridCensus DC Readiness scale, rated good. It ranks 30th of 53 scored sites in Rosebud County. The Rosebud County average is 58.8 and the Montana average is 54.3.
Which electric utility serves EC Coal Rosebud County?
MID-YELLOWSTONE ELEC COOP, INC (not available) holds the retail service territory that contains the site.
What grid region is EC Coal Rosebud County in?
EC Coal Rosebud County is in the SPP region. Projects interconnecting there have averaged a 1.1-year wait from queue request to operation.
Is EC Coal Rosebud County in a flood zone?
The site is in FEMA flood zone X, outside the Special Flood Hazard Area (minimal or moderate flood risk).
Who owns EC Coal Rosebud County?
Parcel records list the owner as Coffee Nefsy Limited Partnership (private land).
How far is EC Coal Rosebud County from an internet exchange?
The nearest internet exchange facility is ACT Colstrip, about 50.7 miles away; 3 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, “EC Coal Rosebud County, Rosebud County, MT”, https://gridcensus.com/datacenter-sites/montana/rosebud-county/ec-coal-rosebud-county-7f29990c (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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