Wisconsin report finds state needs consistent statewide data center power regulations to enable investment planning.

Wisconsin requires statewide legislation to ensure large-scale AI data centers operate under uniform rules and fund their own energy infrastructure, according to a new report from the University of Wisconsin-Madison's Center for Research on the Wisconsin Economy.

The report, titled "Winning the AI Race: Who should pay for Wisconsin's data center boom," argues that competitive success depends on factors beyond cost-cutting. "America will not outbuild China by copying its model," the report concludes. "It can compete through private capital, abundant energy, enforceable contracts, and faster construction. Wisconsin has the manufacturers, workforce, land, and industrial experience to compete on those terms."

The analysis supports sales tax exemptions for data centers as reasonable policy, noting that neighboring states offer equivalent exemptions and that sales taxes are designed for end-use sales rather than for supplier-tier transactions where the product faces multiple taxation cycles.

The core problem identified in the report is that energy-provision terms for Wisconsin's largest AI data center projects vary significantly, creating unsustainable regulation. The Public Service Commission's April 2026 order on cost allocation, while correct in principle, covers only one utility, leaves transmission exposure partially unresolved, and remains subject to future revision. "The order gets the central allocation right: customers that require dedicated generation must pay for it," the report states. "But it covers only one utility, leaves part of the transmission exposure unresolved, and can be revisited by a future commission."

The stakes are substantial. According to Legislative Audit Bureau analysis cited in the report, the state forgoes $1.5 billion in sales tax during data center construction, with an additional $369 million in annual forgone revenue once four certified projects reach full operation.

Wisconsin's largest unrealized opportunity, however, lies in supply. The state manufactures the motors, drives, generators, cooling systems, enclosures, and modular infrastructure that data center buildout requires. Three Wisconsin manufacturers alone report at least $1.6 billion in data center orders and backlog, with others reporting significant activity without public disclosure of figures.

"Wisconsin can benefit twice—by hosting data centers and by supplying them. But the first opportunity should not raise the power costs of the firms already selling into the second."