Rock Wool
IndustrialGrant, Wisconsin · MISO
At a glance
Rock Wool is an industrial datacenter candidate site in Grant, Wisconsin, scoring 50.5/100 DC Readiness — 54th of 56 scored sites in the county. It sits in the MISO grid region and the SCENIC RIVERS ENERGY COOP service territory, where interconnection has averaged 4.3 years from request to operation.
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: Enterprise Zone tax credits; TIF available for DC construction in eligible areas.
Site location
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How does Rock Wool compare with other sites in Grant?
Rock Wool ranks 54th of 56 scored candidate sites in Grant. Its 50.5/100 is roughly in line with the county average of 55.5. It is roughly in line with the Wisconsin average of 55.4 and roughly in line with the national average of 53.2.
Against the Wisconsin average, its strongest sub-score is natural hazard (78 vs 77) and its weakest is fiber connectivity (55 vs 67). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.
How close is Rock Wool to power, fiber and other datacenters?
The nearest located transmission bottleneck is ALEWEC02_ROCKDAL1_66320_66 (MISO), 85 miles away. For connectivity, the nearest internet exchange facility is USSHC at 43.6 miles. 9 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is USSHC, 43.6 miles away.
What are the flood, water and hazard risks at Rock Wool?
The site is in FEMA flood zone X, outside the Special Flood Hazard Area (minimal or moderate flood risk). At the county level, FEMA's National Risk Index rates Grant "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 Grant, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| EC Near Nelson Dewey Generating Station | Greenfield | — | — | 4.3 yrs | 60.4 |
| EC Coal Grant County | Greenfield | — | — | 4.3 yrs | 59.6 |
| EC Near Nelson Dewey Generating Station | Greenfield | — | — | 4.3 yrs | 59.5 |
| EC Near Nelson Dewey Generating Station | Greenfield | — | — | 4.3 yrs | 59.4 |
| EC Coal Grant County | Greenfield | — | — | 4.3 yrs | 59.4 |
| EC Near Nelson Dewey Generating Station | Greenfield | — | — | 4.3 yrs | 59.2 |
| EC Near Nelson Dewey Generating Station | Greenfield | — | — | 4.3 yrs | 58.6 |
| EC Near Nelson Dewey Generating Station | Greenfield | — | — | 4.3 yrs | 58.5 |
Rock Wool: common questions
What is the DC Readiness score of Rock Wool?
Rock Wool scores 50.5/100 on the GridCensus DC Readiness scale, rated fair. It ranks 54th of 56 scored sites in Grant. The Grant average is 55.5 and the Wisconsin average is 55.4.
Which electric utility serves Rock Wool?
SCENIC RIVERS ENERGY COOP (cooperative) holds the retail service territory that contains the site.
What grid region is Rock Wool in?
Rock Wool is in the MISO region. Projects interconnecting there have averaged a 4.3-year wait from queue request to operation.
Is Rock Wool in a flood zone?
The site is in FEMA flood zone X, outside the Special Flood Hazard Area (minimal or moderate flood risk).
How far is Rock Wool from an internet exchange?
The nearest internet exchange facility is USSHC, about 43.6 miles away; 9 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, “Rock Wool, Grant, WI”, https://gridcensus.com/datacenter-sites/wisconsin/grant/rock-wool-20683125 (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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