Rock County, Wisconsin
Rock County, Wisconsin has 800 MW of data centers on record, planned to operating, across 1 record, against 1.8 GW of generation operating inside the county. The queue adds 1.2 GW of planned generation across 12 projects, 8 of them past their listed in-service date.
Rock County and its neighbors
Counties shaded by data center MW on record, planned to operating. 4 of its 4 neighboring counties have pages of their own. The rest are in the member database.
Data center records planned, under construction and operating, data as of October 8, 2026.Hover a county for its numbers
of the generation operating in the county is matched by data center MW on record: 800 MW of data centers against 1.8 GW of plants, with 1.2 GW more planned.
Data centers by status
1 record, 800 MW
The data center pipeline
None of the 1 record lists a year online or expected, so the pipeline is shown by developer only.
Who is building in Rock
Data center developers by MW on record. Top 1 of 1.
View as table
| Developer | Sites | MW |
|---|---|---|
| Viridian Acquisitions LLC | 1 | 800 |
Power generation in the county
19 plants operate inside Rock County, 1.8 GW. The queue adds 1.2 GW across 12 projects, and 8 of them are past their listed in-service date.
Operating and planned generation by technology
MW in Rock County
View as table
| Technology | Status | Projects | MW |
|---|---|---|---|
| Natural Gas | Operating | 8 | 1,401.1 |
| Natural Gas | Planned | 3 | 335 |
| Solar | Operating | 8 | 425.2 |
| Solar | Planned | 6 | 735.1 |
| Battery Storage | Planned | 1 | 100 |
| Transmission | Planned | 2 | 58 |
| Landfill Gas | Operating | 3 | 3 |
Planned generation by listed in-service year
MW. Years before 2026 are past due.
View as table
| Year | Planned projects | MW |
|---|---|---|
| 2019 | 1 | 30 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 3 | 325 |
| 2023 | 2 | 98 |
| 2024 | 0 | 0 |
| 2025 | 2 | 298.6 |
| 2026 | 2 | 305 |
| 2027 | 1 | 100 |
| 2028 | 0 | 0 |
| 2029 | 0 | 0 |
| 2030 | 1 | 71.5 |
Rock County against its neighbors
Dane County has the most data center MW among the neighbors, 1.3 MW, 0% of Rock County's. 3 of the 4 have more generation operating than data center MW on record.
| County | Data center records | Data center MW | Operating generation MW | Planned generation MW | Data center MW per MW operating |
|---|---|---|---|---|---|
| Rock County this page | 1 | 1,228 | 0.44x | ||
| Dane County | 1 | 2,614 | 0x | ||
| Jefferson County | 0 | 653 | 0x | ||
| Walworth County | 0 | 1,948 | 0x | ||
| Green County | 0 | 335 | no operating MW |
Data center MW counts records planned, under construction and operating. Generation is inside the county only. Neighbors without a page have fewer than three projects on record.
5 counties shownWhat changed since June 4, 2026
2 projects in Rock County moved between the two snapshots. Counts and MW are below; the projects themselves are for members.
Every change in Rock County
Project, what changed, technology, MW and the dates that moved, for all 2 changes.
| Project | Change | Technology | MW | Previous date | New date |
|---|---|---|---|---|---|
Rows are hidden on public pages. Members see the project behind each change, its developer and the dates that moved.
Every record in Rock County
Campus or project name, developer, status, MW, year and the developer’s contacts, for all 32 records. Filter, sort and export to Excel.
| Project or campus | Developer | Status | MW | Year | Contacts |
|---|---|---|---|---|---|
Rows are hidden on public pages. Members see every field and can export up to 1,000 rows a month on Solo, unlimited on Unlimited.
Get alerts for Rock County
We email you when a data center or power project in Rock County is added, changes status, signs an interconnection agreement or slips its date. One email per snapshot, only when something changed.
Open every campus, project and contact in Rock County.
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