Wisconsin

Data centers in Marquette County

We track 1 project inside Marquette County and 0 more within 25 miles of it. For a distance-specific answer, check your own address.

In Marquette County

Power bills in Marquette County

Transmission upgrades like this are typically billed to every electric customer in the state through transmission charges, not just to the data center that made the new line necessary, which is why the cost allocation question matters for ordinary bills even outside the four counties involved.

American Transmission Company's roughly 1.3 to 1.7 billion dollar transmission project to serve the Vantage data center campus, whose tenants include OpenAI and Oracle, in Port Washington had been deemed a complete application on December 15, 2025. On August 6, 2026 the Public Service Commission of Wisconsin voted unanimously to revoke that completeness determination, the first time in the agency's 95 year history it has done so, citing 564 revised or refiled documents that made the record too murky to review. ATC refiled the application on September 14, 2026 under a new name, the Ozaukee County Distribution Interconnection Project, restarting the roughly six month review clock; broader regional upgrades tied to the project have pushed total contingency cost estimates as high as 2.5 to 2.7 billion dollars.

Every Wisconsin rate case in dollars a month, with hearing dates: willmybillgoup.com, our rate case tracker.

Alerts for Marquette County

An email when a filing, hearing, or status changes within 25 miles of the county seat. For a tighter radius, check your own address and subscribe there.

Unsubscribe with one click. We do not sell the list.

Want this worked out for one address? The address report covers noise, water, your power bill, and what is being planned nearby. See the address report.