July/August 2026 Issue

Also in this issue: Wisconsin Court of Appeals Upholds Act 10     |     The Importance of Wisconsin’s Notice of Claim Statute in the Era of AI-Assisted Litigation

Wisconsin’s Local Government Response to Hyper Scale Data Centers: An Overview

Richard Heinemann | 08.25.26

Over the past two years, Wisconsin has become a focal point for hyperscale data center development. Projects associated with Microsoft, Meta, OpenAI, Oracle, Vantage, QTS, and other developers have generated billions of dollars in proposed investment and unprecedented demand for electric transmission, water infrastructure, and land development. The rapid pace and scale of these proposals has prompted responses from local governments across the state. As of yet, the responses have not led to a state-wide coordinated legislative approach, in contrast to neighboring states such as Minnesota.¹ Instead, counties, cities, villages, and towns are experimenting with a wide range of regulatory and policy tools as they attempt to balance economic opportunity against concerns about growth, infrastructure, and local control.

The most common response has been the adoption of temporary moratoria. From Dane County and Monroe County to Door, Green, Jefferson, Oneida, Shawano, and Winnebago Counties, local governments have enacted temporary bans ranging from six to eighteen months on new data center development. Municipalities including Madison, Superior, Oshkosh, and Hobart have adopted similar measures.

Notably, many of these jurisdictions had no active data center proposals pending when they acted. Rather than responding to a specific project, officials instead have cited the need for time to study the issue, evaluate potential impacts, and develop appropriate regulations before considering actual proposals. The message is clear: many local governments would rather establish rules in advance than navigate a hyperscale proposal without a policy framework.

As communities move beyond temporary moratoria, many are developing permanent regulatory strategies. Several jurisdictions have concluded that traditional zoning provisions are not well suited to projects that may consume hundreds of megawatts of electricity, occupy hundreds of acres, and require significant utility infrastructure.

The City of Menomonie adopted a new zoning framework in response to a proposed $1.6 billion data center. Park Falls created a special data center district featuring extensive restrictions. Jefferson adopted regulations addressing utility planning and setbacks from residential areas. Burnett County has created a new classification that subjects data centers to additional county-level review. These actions reflect a growing recognition that data centers present land-use issues distinct from traditional industrial development and may warrant tailored regulatory treatment.

Another common theme is that public controversy often arises from the development process itself rather than from the proposed facilities. Repeatedly, local opposition has centered on concerns about secrecy, transparency, and lack of community involvement. In Beaver Dam, for example, residents questioned the lack of information provided to the public over the facility's energy usage. In DeForest, local criticism emerged over the perception that discussions were kept private before becoming public. In Cassville, uncertainty regarding the identity of the prospective developer fueled concerns among residents. In Janesville, citizen-led initiatives sought greater voter involvement in major development decisions. These examples suggest that for many communities, the manner in which projects are introduced may be as important as the projects themselves.

The local government response also reveals a consistent set of substantive concerns driving local government action. Water consumption has become a particularly important issue. Communities evaluating large-scale data centers have questioned the long-term implications of groundwater withdrawals and cooling requirements.

Electricity demand and transmission present another challenge, though Wisconsin regulators have begun to address these issues. In May, the Wisconsin Public Service Commission (PSCW) approved a large customer and bespoke resource tariff proposed by Wisconsin Electric Power Company designed to insulate non-data center ratepayers from power costs while imposing stringent financial and credit restrictions. Madison Gas & Electric has proposed a similar tariff aimed at data centers with projected demands of at least 100 MW.

More recently, the PSCW paused its consideration of an application from the American Transmission Company to build more than $1 billion dollars of proposed transmission infrastructure intended to serve the Port Washington data center project in Ozaukee County in order to give the company an opportunity to submit a revised application for the required permit.

Local officials have also expressed concern about loss of agricultural land, compatibility with surrounding land uses, impacts on rural character, and the extent to which existing taxpayers and utility customers may be asked to support infrastructure expansions necessitated by private development.

Not all local responses have been restrictive. Some communities have sought ways to accommodate development while ensuring greater public oversight. Washington County, for example, adopted an advisory resolution supporting the use of existing infrastructure to facilitate large-scale data center development. In Port Washington, local officials have continued to advance the Vantage/OpenAI/Oracle Lighthouse project despite substantial public debate and controversy. These examples suggest that not all Wisconsin local governments are opposed to data center development as a matter of principle. Instead, the debate often centers on transparency, local control, environmental impacts, infrastructure demands, and the conditions under which large-scale projects should proceed.

Another notable trend is the regionalization of policy responses. Communities that have never received a data center proposal are nevertheless adopting moratoria, studying zoning changes, and monitoring developments elsewhere in Wisconsin. Local officials appear to be learning from experiences in Menomonie, Port Washington, DeForest, Beaver Dam, and other communities. As a result, data centers have become not merely a local land-use issue but a statewide policy discussion involving counties and municipalities far removed from actual project sites. This diffusion of concern suggests that Wisconsin has entered a new phase in which local governments are proactively preparing for a potential wave of hyperscale development.

A notable example in that regard is the 13-member Dane County Advisory Committee on Data Centers which was established in 2026 to impartially gather facts, research and analysis in order to issue recommendations on the economic, environmental, and community implications of data center development within Dane County. The committee is comprised of local government officials, community stakeholders, and members with knowledge and expertise on a wide range of subject matter including energy and water use and their impacts on local utilities and ratepayers; land use and environmental compatibility, including farmland preservation and infrastructure planning; economic and fiscal impacts, including tax base and employment effects; and intergovernmental coordination and policy options for review of data center proposals.

With data center development a central issue in the gubernatorial election and numerous legislative proposals continuing to churn through legislative committees, the issue is not likely to fade away any time soon. But in the continued absence of a coordinated statewide response, local governments would be well advised to be proactive in developing their responses to the issue.