Wisconsin
Data centers in Wisconsin
The Census tracks 10 major data center projects in Wisconsin, with 1.52 GW of planned capacity: 1 rumored, 1 proposed, 2 under construction, 1 operating, 1 paused, 3 cancelled, 1 denied.
How many data centers are in Wisconsin?
The Census tracks 10 major data center projects in Wisconsin as of Nov 6, 2026: 1 rumored, 1 proposed, 2 under construction, 1 operating, 1 paused, 3 cancelled, 1 denied. That covers major sourced projects, not every smaller facility. The largest by planned capacity is Port Washington (Lighthouse) Data Center Campus (1.3 GW). Latest change, at PNK Group Wisconsin Rapids Data Center: Common Council rejects the conditional use permit after the planning committee recommended denial for missing information (Oct 20, 2026).
- Projects tracked
- 10
- Planned capacity, active projects
- 1.52GW
- Under construction
- 2
- Permanent jobs promised
- 2,500
Wisconsin data center projects
| Project | Status | Capacity | Developer | Last update |
|---|---|---|---|---|
| Port Washington (Lighthouse) Data Center Campus Port Washington, Ozaukee County |
Under construction | 1.3 GW | Vantage Data Centers | Sep 14, 2026 |
| Viridian Data Center Campus (former GM/JATCO site) Janesville, Rock County |
Cancelled | 800 MW | Viridian | Jun 2026 |
| Meta Beaver Dam Data Center Beaver Dam, Dodge County |
Under construction | 220 MW | Meta | May 7, 2026 |
| Cloverleaf, Greenleaf Greenleaf, Brown County |
Cancelled | — | Cloverleaf Infrastructure | Jan 13, 2026 |
| Cloverleaf, Village of Wrightstown Wrightstown, Brown County |
Rumored | — | Cloverleaf Infrastructure | Aug 11, 2026 |
| Menomonie Data Center (Balloonist LLC) Menomonie, Dunn County |
Paused | — | Balloonist LLC | Jun 30, 2026 |
| Microsoft Fairwater Mount Pleasant, Racine County |
— | Microsoft | Oct 14, 2026 | |
| PNK Group Wisconsin Rapids Data Center Wisconsin Rapids, Wood County |
Denied | — | PNK Group | Oct 20, 2026 |
| Project Cornmaze Beloit, Rock County |
Proposed | — | Panattoni Development | Aug 17, 2026 |
| QTS DeForest Data Center Campus DeForest, Dane County |
Cancelled | — | QTS Data Centers | Feb 3, 2026 |
Recent changes in Wisconsin
-
PNK Group Wisconsin Rapids Data Center WI
Common Council rejects the conditional use permit after the planning committee recommended denial for missing information WLUK Fox 11 (WSAW report) -
Microsoft Fairwater WI
Village Plan Commission unanimously backs Microsoft's amended site plan, which drops two of nine planned data center buildings while raising total floor area above 5.8 million sq ft; Village Board vote expected later in October Wisconsin Public Radio -
Port Washington (Lighthouse) Data Center Campus WI
ATC refiles its application for the grid upgrades serving the campus, dropping a Trenton-Saukville line segment and restarting the PSC's six-month review Wisconsin Watch -
Port Washington (Lighthouse) Data Center Campus WI
Oracle moves to voluntarily drop its Ozaukee County Circuit Court lawsuit challenging the Wisconsin PSC's credit rating requirements for data center developers Wisconsin Watch -
Project Cornmaze WI
Town of Beloit board votes 4-0 on a resolution calling for a 12-month data center moratorium; a public hearing and an ordinance are still required Beloit Daily News -
Cloverleaf, Village of Wrightstown WI
Village voters answer No to an advisory, non-binding referendum question on whether the village should authorize or participate in public improvements connected to large data center projects Spectrum News 1 (Wisconsin) -
PNK Group Wisconsin Rapids Data Center WI
Plan Commission holds a major public hearing on the PNK proposal and votes 6-0 to begin drafting a 12-month data center moratorium that would not apply to this project WAOW -
Port Washington (Lighthouse) Data Center Campus WI
PSC requires ATC to restart its application for the $1.3B+ transmission line and five substations serving the campus Wisconsin Watch -
PNK Group Wisconsin Rapids Data Center WI
City holds a public informational meeting at the library while PNK Group is still preparing a formal development plan; opponents protest outside WSAW -
Project Cornmaze WI
Town of Beloit supervisors reject the cost reimbursement agreement with Panattoni and begin the process toward a 12-month data center moratorium, two days after the Town of Turtle took similar steps Beloit Daily News
About this count
This page counts the major projects the Census has researched and sourced: 10 as of Nov 6, 2026, including 4 cancelled or denied. It does not yet include every smaller colocation or enterprise facility, so the total number of buildings in Wisconsin is higher. We add projects as they are announced or found in public filings.
Counties with tracked projects
Brown County · Dane County · Dodge County · Dunn County · Ozaukee County · Racine County · Rock County · Wood County
Water and power
1 of the 10 tracked projects here has a disclosed water figure (1 in all), with sources and what each figure measures.
Moratoriums
-
Project Cornmaze WI
Town of Beloit board votes 4-0 on a resolution calling for a 12-month data center moratorium; a public hearing and an ordinance are still required Beloit Daily News -
PNK Group Wisconsin Rapids Data Center WI
Plan Commission holds a major public hearing on the PNK proposal and votes 6-0 to begin drafting a 12-month data center moratorium that would not apply to this project WAOW -
Project Cornmaze WI
Town of Beloit supervisors reject the cost reimbursement agreement with Panattoni and begin the process toward a 12-month data center moratorium, two days after the Town of Turtle took similar steps Beloit Daily News
All 4 moratorium actions in Wisconsin →
AI data centers in Wisconsin
3 tracked projects here are counted as AI data centers: Microsoft Fairwater (operating), Meta Beaver Dam Data Center (under construction), Cloverleaf, Greenleaf (cancelled). All AI data centers →
Data center rules in Wisconsin
- Dane County: Sub 1 to 2026 RES-039, 18-month moratorium on hyperscale data center zoning permitsadopted
- Wausau: Wausau data center zoning ordinanceadopted
Utilities serving tracked projects in Wisconsin
We Energies · Alliant Energy. Will data centers raise electric bills here? →
Follow Wisconsin
RSS feed of Wisconsin changes · Printable fact sheet · Embed this tracker · Projects near a ZIP code · Data center jobs near you
Wisconsin data centers: common questions
How many data centers are in Wisconsin?
The Census tracks 10 major data center projects in Wisconsin as of Nov 6, 2026: 1 rumored, 1 proposed, 2 under construction, 1 operating, 1 paused, 3 cancelled, 1 denied. This counts large projects the Census has researched and sourced, not every smaller colocation or enterprise facility, so the total number of data center buildings in Wisconsin is higher.
What is the largest data center project in Wisconsin?
By published planned capacity, the largest tracked project in Wisconsin is Port Washington (Lighthouse) Data Center Campus in Port Washington, Ozaukee County, WI, at 1.3 GW. Its status is under construction.
Are data centers being built in Wisconsin right now?
Yes. 2 tracked projects are under construction in Wisconsin: Port Washington (Lighthouse) Data Center Campus, Meta Beaver Dam Data Center.
How many jobs will data centers create in Wisconsin?
4 tracked projects in Wisconsin have a published permanent-jobs figure, adding up to 2,500 permanent jobs as announced. Announced jobs are promises, not guarantees; construction employment is typically much larger but temporary.
How many AI data centers are in Wisconsin?
The Census counts 3 tracked projects in Wisconsin as AI data centers, because their own sources describe them as built for AI: Microsoft Fairwater (operating), Meta Beaver Dam Data Center (under construction), Cloverleaf, Greenleaf (cancelled). That is a floor; other campuses may run AI workloads without their sources saying so.
Are there data center moratoriums in Wisconsin?
The Census moratorium tracker records 4 moratorium actions in 4 jurisdictions in Wisconsin, most recently in Town of Beloit (Aug 17, 2026). Each one, with its source, is on the Wisconsin moratorium page.
Answers are generated from the sourced project records above and update when a record changes. Open any project for its sources.
Wisconsin data center report card
- Tracked projects10
- Published capacity1.52 GW
- Under construction2
- Moratorium actions in the tracker4
- Largest: Port Washington (Lighthouse) Data Center Campus1.3 GW
A square image of these figures, sized for Instagram, LinkedIn and slides. It is redrawn whenever a record changes, so the link always shows today’s numbers.
Free to use with credit to Data Center Census (CC BY 4.0).
Cite this page
Last updated Nov 6, 2026. Figures may change as records are updated — include the date you retrieved them.
| APA | Data Center Census. (2026). Data centers in Wisconsin. Retrieved from https://datacentercensus.com/us/wisconsin |
|---|---|
| MLA | “Data centers in Wisconsin.” Data Center Census, Nov 6, 2026, https://datacentercensus.com/us/wisconsin. |
| Link | https://datacentercensus.com/us/wisconsin |
Republishing a figure or table? Attribute it to Data Center Census with a link to this page. The underlying data is downloadable as JSON and CSV; the press kit has standing figures and contact details.