American Transmission Co.

Data Center Signal is tracking 10 clips about American Transmission Co. data center developments across 1 states, including WI.

10Clips

1States

States

Topics

electricity100%

government100%

opposition50%

environmental40%

legal20%

zoning10%

News ClipWPR·Mount Pleasant, WI

Wisconsin regulators, Microsoft question utility plan for data center transmission costs

Microsoft, Wisconsin regulators, and customer advocates are expressing concerns over a utility proposal by American Transmission Co. and We Energies regarding data center transmission costs for a Microsoft facility in Mount Pleasant. They argue the proposed agreement may not adequately protect existing customers from cost shifting or fairly allocate expenses for grid upgrades. Federal regulators have been asked to review the proposal to ensure just and reasonable transmission rates for large power users.

electricity government

Microsoft

8/27/2026

News ClipFinance & Commerce·Mount Pleasant, WI

Microsoft challenges $600M data center power plan

Microsoft is challenging a $600 million power plan proposed by American Transmission Co. and We Energies for its Mount Pleasant, Wisconsin data center campus, arguing it does not adequately protect existing utility customers from bearing the costs. The tech giant's stance is supported by consumer advocate Citizens Utility Board, who also raised concerns about cost allocation transparency. The Federal Energy Regulatory Commission is being urged to scrutinize the plan.

electricity government legal

Microsoft

8/26/2026

News Clip1:42TMJ4 News·Trenton, Washington County, WI

Washington County residents win round against power line proposal

Residents in the Town of Trenton, Washington County, Wisconsin, achieved a partial victory against a proposed high-voltage power line by American Transmission Co. The Public Service Commission of Wisconsin declined ATC's application, citing incompleteness, which would have served a data center in Port Washington.

electricity opposition government

8/8/2026

News ClipUrban Milwaukee·Port Washington, Ozaukee County, WI

Regulators Force Do-Over For $1.7 Billion Data Center Power Line Plan

The Public Service Commission of Wisconsin unanimously revoked the "completeness" determination for American Transmission Co.'s (ATC) $1.7 billion power line project application. This decision forces ATC to submit a new application, restarting the process for the infrastructure intended to serve a hyperscale data center in Port Washington. Regulators cited numerous and substantial revisions to the application, making it difficult for public and staff review.

electricity government opposition

8/7/2026

News ClipWPR·Port Washington, Ozaukee County, WI

PSC deals major blow to transmission project supporting Port Washington data center

Wisconsin's Public Service Commission (PSC) has dealt a major setback to a $1 billion-plus transmission project intended to support a hyperscale data center campus in Port Washington. The PSC revoked a "completeness" determination for American Transmission Co.'s application, requiring the company to restart the entire application process due to extensive revisions. This decision is a rare move for the utility regulator and will significantly delay the project.

electricity government opposition

8/7/2026

News ClipE&E News by POLITICO·Port Washington, Ozaukee County, WI

Wisconsin tells $1.4B data center power line to start over

Wisconsin regulators have taken an unprecedented step, forcing American Transmission Co. to restart the yearlong approval process for a $1.4 billion power line intended for the Stargate data center in Port Washington. The Public Service Commission's 3-0 vote revoked a "completeness determination" due to numerous project changes that hindered public and staff review. This decision leaves the timeline for the $15 billion data center project, backed by Vantage Data Centers, Oracle, and OpenAI, in limbo.

electricity government

Oracle OpenAI

8/7/2026

News ClipOzaukee Press·Port Washington, Ozaukee County, WI

Monopoly adds to negative impact of Port Washington data centers

A letter to the editor expresses concern about the environmental impact of proposed transmission lines for data centers in Port Washington, Wisconsin. The author attributes this extensive infrastructure to We Energies' monopoly on power generation in the state. The letter argues for deregulation to allow on-site power generation as a less invasive alternative.

environmental electricity government

8/5/2026

News ClipUrban Milwaukee·Beaver Dam, Dodge County, WI

With Sharp Criticism, Regulators Approve Electric Rates For Facebook-Meta Data Center

The Wisconsin Public Service Commission approved Alliant Energy's electricity rates for Meta's Beaver Dam data center but with sharp criticism over transparency. Regulators imposed conditions, including requiring standard rates for future large data center customers and stricter termination charges for Meta, while an environmental group has filed a lawsuit regarding energy demand transparency.

electricity government legal environmental

Generator permit latest front in data center fight

Local residents and environmental groups are opposing Vantage Data Centers' Lighthouse Campus in Port Washington, Wisconsin, primarily over concerns about 45 diesel backup generators and their air emissions. The Wisconsin Department of Natural Resources is considering an air permit, while the Public Service Commission of Wisconsin is reviewing power line extensions and recently approved a special electricity rate for data centers. Opposition groups are actively campaigning for more thorough environmental reviews and alternative power line routes.

environmental electricity government opposition

Vantage

4/29/2026

News ClipWPR·Beaver Dam, Dodge County, WI

New Wisconsin data center approved as utilities face scrutiny over electric costs

The Beaver Dam City Council approved a second data center project despite public opposition, including rezoning land and executing development agreements. This comes as the Public Service Commission of Wisconsin is reviewing data center electricity rate proposals from We Energies and Alliant Energy, facing significant public comments against the plans due to concerns over rising costs.

zoning opposition environmental government electricity

Meta Microsoft Vantage

4/17/2026