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Menomonie, WI · Dunn County · 44.877°N 91.919°W

Menomonie Data Center Campus

Undisclosed (Balloonist LLC)

ProposedLikely AI-specificReported

This facility is proposed and has not been reported as operational. Details are based on public filings and announcements as of .

Key facts

Location
Menomonie, WI, Dunn County
Capacity
—
Powered by
Xcel Energy
Announced
2025-07
Last updated

Civic impact

Economics

Land
324 acres

Energy & water

Energy source
Grid
Cooling
Closed-loop

Balloonist LLC confirmed working with Xcel Energy and the WI Public Service Commission on supply/grid; no MW load or substation figure disclosed.

Proposed closed-loop cooling requiring ~75,000 gallons/day of municipal water/wastewater - would rank as Menomonie's fifth-largest water user.

Community sentiment

Contested

Active opposition group 'Stop the Menomonie Data Center'; Mayor Knaack (Sept 2025) called it 'not a suitable fit'; the city administrator signed an NDA limiting transparency; residents built a national toolkit for similar proposals; the new mayor is continuing the I-4 ordinance process.

Status history

  1. Proposed

    Balloonist LLC filed an annexation petition and I-1 rezoning for a ~324-acre site on County Highway B (Town of Red Cedar)

    Proposed Data Center - Menomonie News Net
  2. Proposed

    Menomonie City Council approved annexation and I-1 rezoning 8-3; rezoning is not a building permit

    Tech Giant Considering $1.6B Data Center in Dunn County
  3. Proposed

    Mayor Knaack declared the project 'on pause'; TID/development-agreement talks ended; Balloonist subsequently purchased the land

    Menomonie mayor puts $1.6B data center proposal on hold
  4. Proposed

    City Council adopted a new I-4 Data Center Industrial District ordinance with stricter parameters, effectively requiring Balloonist to reapply

    Menomonie City Council Approves Data Center Ordinance Change
  5. Proposed

    Mayor Crowe: city still refining the I-4 ordinance, draft to be introduced Aug 3 2026; Balloonist retains the land

    Mayor Crowe statement on proposed data center ordinance (June 2026)

Location

Sources & data provenance

Reported: data based on credible news outlets or industry sources.

Last updated:

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