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
Nearby datacenter candidate sites
Scored candidate sites near Rock River, ranked by DC Readiness.
| Site | Type | State | County | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|---|
| EC Near Sheepskin | Greenfield | WI | Rock | — | — | 1.4 yrs | 65.0 |
| CHRISTIANA | Substation-Adjacent | WI | Jefferson County | 345 kV | 600 MW | 2.8 yrs | 64.9 |
| Rockford Community Solar | Brownfield | IL | Winnebago | — | 3 MW | 3.8 yrs | 64.7 |
| EC Near Sheepskin | Greenfield | WI | Rock | — | — | 1.4 yrs | 64.2 |
| EC Near Blackhawk | Greenfield | WI | Rock | — | — | 1.4 yrs | 63.5 |
| EC Near Sheepskin | Greenfield | WI | Rock | — | — | 1.4 yrs | 63.0 |
| CHERRY VALLEY | Substation-Adjacent | IL | Boone County | 345 kV | 600 MW | 3.8 yrs | 62.6 |
| EC Near Sheepskin | Greenfield | WI | Rock | — | — | 1.4 yrs | 62.2 |
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 164,098-site catalog, raw sub-scores, parcel ownership, interconnection-queue detail, saved searches, and programmatic API access.