Rock River
BrownfieldBeloit, Rock, Wisconsin · Wisconsin Power & Light Co
Rock River is a natural gas plant in Beloit, Rock, Wisconsin, retired 2020-06-01. Retired generation sites are among the most attractive datacenter redevelopment targets: the existing interconnection was sized for roughly 319 MW of generation, so the grid hookup, transmission rights, and often cooling-water access are already in place — collapsing the speed-to-power timeline versus a greenfield build.
Former use & capacity
Grid hookup & remediation
Site conditions & market — Rock County
County-level intelligence for this site's location — the power economics, water, hazard, connectivity, and workforce a developer screens before ever visiting. Assembled from FEMA NRI, BLS QCEW, FCC BDC, USGS water-use, and EIA.
Market & workforce
Power economics & interconnection
Water & cooling
Hazard, flood & connectivity
County-level context — address-level utility offerings and flood zoning vary within the county. Confirm site-specific service with the utility and a Phase I ESA.
Nearby brownfield & retired-generation sites
A proximity screen of other retired-plant, contaminated, and EPA-flagged sites near Rock River — the environmental neighborhood, ranked by legacy grid capacity.
| Site | Former use | Legacy MW | Distance | Cleanup status |
|---|---|---|---|---|
| Sabrooke | oil plant | 150 | 25.3 mi | — |
| Blackhawk | natural gas plant | 50 | 5.3 mi | — |
| Sheepskin | natural gas plant | 42 | 17.9 mi | — |
| Rockford Community Solar | former landfill site | 3 | 22.4 mi | cleanup_complete |
| Beloit Coal Ash Landfill | former landfill site | 2 | 4.2 mi | cleanup_complete |
Derived from GridCensus's retired-generator & EPA brownfield dataset. Not a substitute for an ASTM E1527 Phase I environmental radius report.
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Track Rock River
Get an email when its DC-readiness score, available capacity, or interconnection-queue status changes.
Nearby datacenter candidate sites
Scored candidate sites near Rock River, ranked by DC Readiness.
| Site | Type | State | County | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|---|
| CHRISTIANA | Substation-Adjacent | WI | Jefferson County | 345 kV | 600 MW | 2.8 yrs | 65.1 |
| CHERRY VALLEY | Substation-Adjacent | IL | Boone County | 345 kV | 600 MW | 3.8 yrs | 64.0 |
| KITTYHAWK | Substation-Adjacent | WI | Rock County | 345 kV | 600 MW | 2.8 yrs | 63.9 |
| TAP137909 | Substation-Adjacent | IL | Winnebago County | 345 kV | 600 MW | 3.8 yrs | 63.9 |
| UNKNOWN124165 | Substation-Adjacent | IL | Winnebago County | 345 kV | 600 MW | 3.8 yrs | 63.7 |
| PADDOCK | Substation-Adjacent | WI | Rock County | 345 kV | 600 MW | 2.8 yrs | 63.7 |
| EC Near Sheepskin | Greenfield | WI | Rock | — | — | 1.4 yrs | 63.5 |
| TAP136942 | Substation-Adjacent | IL | Winnebago County | 345 kV | 600 MW | 3.8 yrs | 63.5 |
Nearby internet exchanges
- Network 222Madison, WI · 13 networks
- 5Nines DataMadison, WI · 6 networks
- University of Wisconsin-MadisonMadison, WI · 5 networks
- EdgeConneX Madison (EDCMAD01)Madison, WI · 4 networks
See all datacenter sites in Wisconsin →
Dataset updated . Screening estimates derived from public data sources.
Brownfield attributes are derived from EIA retired-generator and EPA public data. Existing capacity reflects the retired plant's historical nameplate, not deliverable interconnection for a new load. Confirm reusable interconnection rights, remediation status, and site availability with the utility, ISO, and current owner.
Go deeper than the public screen
This page shows a public slice of the GridCensus dataset for Rock River, Beloit, Rock, Wisconsin. Pro and Enterprise plans unlock the full 147,272-site catalog, raw sub-scores, parcel ownership, interconnection-queue detail, saved searches, and programmatic API access.