Wisconsin Institute for Law and Liberty argued that transmission line plans would destroy the landscape that shaped Tom Uttech's artistic career
Data centers in Ozaukee County, Wisconsin
Ozaukee County has 1 data center on the record; it is being built. Ozaukee County has a scorecard row with no rating yet.
How to read this page. Every count comes from the records on this page and links to where it is counted. Nothing is published until a person reads its source, and a figure no source gives reads Not disclosed; nothing is estimated. A rating changes only when a person sets it.
The data center in Ozaukee County
Each row is one site with its stage, its latest dated entry and what its sources disclose. A figure no source gives reads Not disclosed.
Vantage Port Washington Data Center
Port Washington, Ozaukee County · Vantage
Latest, reported September 18, 2026: Ozaukee County Distribution Interconnection Project filed with PSC wpr.org local outlet
- Land
- Not disclosed
- Power
- 1 GW
- Water
- Not disclosed
- Tenant
- Not disclosed
Where
Drag with one finger to move the map, pinch to zoom. Tap a pin for the data center, a county for its rules
1 data center in Ozaukee County: being built. A dashed edge means the exact site is not in the public record; every pin here marks a town or the county.
The cities in Ozaukee County on the record (1)
| City | Projects |
|---|---|
| Port Washington | 1 |
What Ozaukee County has decided
1 body, 0 decisions on the recordWhat the county and the cities in it have done about data centers: each body on its own row with its rating, open, case by case, restrictive or closed, never good or bad, and every vote, ordinance, moratorium or agreement behind its toggle, newest first, with its source. No dated decision is on the record yet.
- Ozaukee Countycounty
No dated act on this row yet.
What happened
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· Vantage Port Washington Data Center
Broke ground: Construction continues on Vantage Data Centers' AI data center campus project in Port Washington, Wisconsin as of August 6, 2026 jsonline.com local outlet
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· Vantage Port Washington Data Center
Stalled: Public Service Commission of Wisconsin revoked American Transmission Company's completeness determination for the Ozaukee County Distribution Interconnection Project on August 6, 2026 fox11online.com local outlet
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· Vantage Port Washington Data Center
Broke ground: $15 billion Port Washington data center project under construction jsonline.com local outlet
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· Vantage Port Washington Data Center
Now reported: Construction on the site began in December after DNR permitting was completed youtube.com video
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· Vantage Port Washington Data Center
Broke ground: TID would remain open for up to 20 years or until Vantage is reimbursed for all costs wpr.org local outlet
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· Vantage Port Washington Data Center
Approved: Vantage Data Centers, OpenAI, and Oracle plan to invest more than $15 billion at a Port Washington data center campus wpr.org local outlet
What was said
Summer Strand, PSC Chair, stated the decision was not opposition to data centers but rather that the application represented a cautionary tale of unrealistic speed to power expectations colliding with a deliberative regulatory process.
Brendan Conway, We Energies spokesperson, said the power line project is a critical part of delivering generation to the data center
Pastor Patti Plough of Responsible Energy Alliance celebrated the PSC decision
Every Wisconsin statement, by speaker
63 more statements on this page
Wisconsin Institute for Law and Liberty
The Uttechs did not plan to sell the property so it would have needed to be taken by eminent domain
Port Washington residents
Residents complained about construction mentioning noise and light pollution
Misty Allen, Vantage Data Centers vice president of public policy North America
The campus will use a closed loop cooling system for water
Energy utility MG&E filed a new data center tariff proposal with the Public Service Commission
City Engineer, Port Washington
City Engineer Roger Strohm said traffic at shift change is crazy
Pier Street Development developer
Haley Dobre, Pier Street Development, said job growth from the $15 billion data center complex north of downtown has increased demand for housing
PSC chair Summer Strand said ATC filed or refiled 564 application documents after receiving a completeness determination late last year.
Public Service Commission of Wisconsin
ATC filed numerous substantial changes to its project application during the proceedings, which led to the revocation
PSC Chairperson Summer Strand described ATC application as clearly underwater and revoked completeness determination
Brendan Conway, We Energies spokesperson
No costs to serve data centers will be shifted to other customers
Brendan Conway, We Energies spokesperson
Data centers have to pay their full costs under the data center rate structure
Vantage North America President Dana Adams said the facility will support Oracle and their end user OpenAI running AI workloads out of the building.
Dana Adams, Vantage North America President
Tax revenue from the facility will begin flowing predominantly when construction is complete.
Dana Adams, Vantage North America president
Vantage will hire local residents including engineers, operators, technicians, network specialists, and security specialists.
Ryan Kehoe, Vantage VP of operations
The rooftop cooling system is relatively quiet by industry standards because much of the sound vectors upwards.
Dana Adams, Vantage North America president
Air containment isolates cold air or hot air so they do not mix, increasing efficiency and reducing cooling requirements.
Ryan Kehoe, Vantage VP of operations
The closed loop chilled water system requires only a one time fill of water.
Public Service Commission estimates Wisconsin will need 40 percent more peak demand power in coming years due to data center boom
MEA and Sierra Club filed a lawsuit after state regulators abandoned a required environmental review for the Port Washington data center
Vantage official (unnamed)
On Sept. 23, a Vantage official texted Port Washington Mayor Ted Neitzke about the governor's office seeking more information on why an EIS would kill the project
Michael Greif, Midwest Environmental Advocates attorney, said case is about transparency and accountability
Tricia Braun, executive director of the Wisconsin Data Center Coalition
Every direct data center job in Wisconsin supported more than six additional jobs elsewhere in the economy
Vantage Vice President of Construction
Victoria Tyson Bloyd, vice president of construction for Vantage, said disruptions from dust should be lessened soon
Michael Graham, Whiting Turner project lead, said there were 85 ironworkers at peak on that building
Wisconsin Public Service Commission commissioner
Wisconsin Public Service Commissioner Kristy Nieto said Wisconsin customers should not pay to subsidize data center service
Mark Freeman, Vantage Data Centers Vice President of Global Marketing
Vantage said backup generators are intended for emergencies and required testing and maintenance, running monthly with no more than four generators for 15 minutes, annually one at a time for an hour, and for 15 minutes to validate repairs
Ciaran Gallagher, Clean Wisconsin Energy and Air Manager
Clean Wisconsin found the data centers will add about $100,000 of health harms per year in Ozaukee County from backup diesel generators
Ben Donajkowski, Port Washington resident
Large dump trucks and construction equipment creating traffic congestion near data center
Ben Donajkowski, Port Washington resident
Traffic situation described as genuinely inexcusable
Christy Knowles, Sheriff
Vantage paying for traffic control and supplementing with flagmen
Christy Knowles, Sheriff
Traffic control expected to continue until at least October
Fredonia neighbor and Responsible Energy Alliance advocate
Patti Plough, Fredonia neighbor, leading opposition group against power lines routing through communities
Vantage Data Centers
Vantage said generators will primarily be used one or a few at a time during monthly testing, well below DNR's established limit of 50 hours per generator annually
Ted Neitzke, Mayor of Port Washington
The data center uses a closed loop cooling system that circulates water like a car radiator
Ted Neitzke, Mayor of Port Washington
Data centers do not discharge like manufacturing plants and do not require clean air credits or significant discharge permitting
Vice President of Global Marketing, Vantage Data Centers
Mark Freeman, Vice President of Global Marketing for Vantage Data Centers, said the company is committed to working with the city on construction alignment
Mayor of Port Washington
Port Washington Mayor Ted Neitzke said 24 hour construction was always going to be temporary
Mayor of Port Washington
Port Washington Mayor Ted Neitzke said the one month delay gives developer time to adjust worker schedules
Vantage Data Centers
Vantage stated they are committed to balancing schedule with community needs
Port Washington resident
Dean Wiegert, town resident, told Common Council 24 hour construction is hellish and backup alarms on trucks wake him throughout the night
Port Mayor Ted Neitzke said 24 hour exterior construction would end in about a month, ending exterior 24 hour work weeks earlier than Vantage anticipated end of May
Kim Tydrick, Port Washington resident
Residents cite bright work lights shining 24 hours, incessant backup beeping, traffic, emissions and dust
Port Washington Mayor Ted Neitzke said the new work hours are necessary to help get the project back on track after delays.
Edwin Van Velzen, Sr. Vice President for Construction, Vantage Data Centers
The data center buildings are being constructed concurrently
Dale Kooyenga, President, Metropolitan Milwaukee Association of Commerce
Business groups argue ordinance conflicts with state law delegating TID authority to municipal governing bodies
Emily Backus, Sustainability Director, North America
No water will be directly piped from Lake Michigan for the Lighthouse Campus.
Dana Adams, Vantage Data Centers North America President
Project is a cornerstone of Project Stargate, a $500 billion public private AI initiative
Sebastian Elischer, Great Lakes Neighbors United
Recall effort filed against Mayor Ted Neitzke over data center concerns
Mike Beaster, Great Lakes Neighbors United
The group is concerned about the data center's expected 1.3 gigawatt electricity draw and its effect on local utility rates
Mike Beaster, Great Lakes Neighbors United
The group is worried about how much water the $15 billion data center will use for cooling
Mike Beaster, Great Lakes Neighbors United
According to the recall group, the mayor has been secretive about the data center details and hasn't taken residents' concerns seriously
Mike Beaster
Great Lakes Neighbors United is working to recall Port Washington Mayor Ted Neitzke
Great Lakes Neighbors United
Opposition from residents has grown with protests and a recall effort announced against the mayor
Port Washington Mayor
Mayor Ted Neitzke said the project could create jobs, support local schools and help ensure future employment opportunities
Vantage Data Centers
Part of Stargate project, a $500 billion public private initiative
unnamed narrator
The Vantage Data Centers Lighthouse Campus is being built using Wisconsin's clean renewable energy without increasing rates on residents.
Christine Le Jeune, Great Lakes Neighbors United, expressed concern that the TID was passed with little community input
Ted Neitzke IV, Port Washington Mayor
Mayor Ted Neitzke said Vantage is putting all capital up front for infrastructure, city pays them back from TID revenues
Todd Taves, Ehlers Public Finance Advisors, said the $175 million infrastructure cost estimate is conservative
Port Washington resident
Scott Lone, resident, said the council should vote against the TID creation and invest in people and local businesses instead
unnamed Vantage Data Centers representative
In 2019, Vantage made a company decision to no longer use evaporative cooling systems in its data center design.
unnamed Vantage Data Centers representative
The data center will not draw water directly from the lake, but will obtain water through existing Port Washington infrastructure.
Disclosed figures
1 GW power
Power, water, jobs and tax
| Figure | Disclosed total | Disclosed | Not disclosed | Basis | |
|---|---|---|---|---|---|
| Power | 1 GW | 1 | 0 | 1 the developer's figure | |
| Water, stated per day | Not disclosed | 0 | 1 | Not disclosed by any of the 1 record | |
| Water, stated per year | Not disclosed | 0 | 1 | Not disclosed by any of the 1 record | |
| Permanent jobs | Not disclosed | 0 | 1 | Not disclosed by any of the 1 record | |
| Tax each year | Not disclosed | 0 | 1 | Not disclosed by any of the 1 record |
Summed only where a record disclosed the figure; a record with no figure adds nothing and is counted as not disclosed. Water is summed per day and per year separately, as the sources stated it, and never converted. A tax claim given as a range is summed at both ends.
By what the facilities are for
| Use | Records | Power | Water | Jobs | Tax each year | |
|---|---|---|---|---|---|---|
| Not disclosed | 1 | 1 GW | Not disclosed | Not disclosed | Not disclosed | Not disclosed: water, jobs, tax each year |
A record that lists several uses counts once under each. Each cell is the sum over the records with that use, disclosed rows only.
What the facilities are for
No source on file states what any of the 1 tracked facility in Ozaukee County is for.
How the facilities are cooled
No source on file states how any of the 1 tracked facility in Ozaukee County is cooled.
Cite this page
Data Center Record, "Data centers in Ozaukee County, Wisconsin", https://datacenterrecord.org/states/wi/ozaukee-county, updated September 25, 2026.
Cite this page
Data Center Record, "Data center records in Ozaukee County, Wisconsin", https://datacenterrecord.org/states/wi/ozaukee-county. Data: Data Center Record, datacenterrecord.org, CC BY 4.0.
The structured rows are CC BY 4.0. Link to this page; that is what turns a reuse into a citation. Prose stays under copyright.
The rows here are part of the Wisconsin export.
For researchers
- Place id
- us/wi/ozaukee-county
- Level
- county
- Census GEOID
- Not disclosed
- Rating value
- Not disclosed
- Scale word
- Not disclosed