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Planning & Development

Data Center Bills

Bill

Number

Author

Relating Clause

Status

Supporting

Documents

SB 1061

Larson, Chris (D)

A moratorium on data centers.

Referred to Senate Committee on Utilities, Technology & Tourism

Registrations

AB-840

Zimmerman, Shannon (R)

Certain requirements related to data centers.

Public Hearings: Assembly Committee on State Affairs on Jan. 14, 2026 and Senate Committee on Utilities, Technology & Tourism on Feb. 17, 2026

Executive Sessions:

Assembly Committee on State Affairs on Jan. 15, 2025 (votes: 7-3, Dems voting against)

Floor Votes:

Assembly on Jan. 20, 2026 (votes: 53-44)

SB-843

Quinn, Romaine

(R)

Certain requirements related to data

centers.

Public Hearing: Senate Committee on

Utilities, Tech. & Tourism on Feb. 17, 2026

Registrations

AB-722

Stroud, Angela (D)

Large energy customer fees; electric utility very large customer class; a renewable resource tariff; building requirements for data centers; water usage by large customers; required pay rate on large-scale data center projects; and granting rule-making authority.

 

SB-729

Habush Sinykin, Jodi (D)

Large energy customer fees; electric utility very large customer class; a renewable resource tariff; building requirements for data centers; water

usage by large customers; required pay

Public Hearing: Senate Committee ono Utilities, Tech. & Tourism on Feb. 17, 2026

 

 

rate on large-scale data center projects;

and granting rule-making authority.

 

memo

AB-1036

Moses, Clint (R)

Prohibiting nondisclosure agreements intended to conceal information about a data center from the public.

 

SB-969

Jacque, Andre (R)

Prohibiting nondisclosure agreements

intended to conceal information about a data center from the public.

Public Hearing: Senate Committee ono Utilities, Tech. & Tourism on Feb. 17, 2026

AB-245

Zimmerman, Shannon (R)

Modifying the sales and use tax exemption for qualified data centers.

Public Hearing: Assembly Committee on Ways and Means on Oct. 1, 2025 Executive Session: Assembly Committee on Ways and Means on Nov. 5 2025 (votes: 6-3, Dems voting against)

Registrations

SB-244

Quinn, Romaine (R)

Modifying the sales and use tax exemption for qualified data centers.

Public Hearing: Senate Committee on Agriculture and Revenue on May 9, 2025

AB-472

Sortwell, Shae (R)

A nuclear energy generation tax credit; prioritizing nuclear energy resources; approval of certain electric tariffs for very large customers; and authorizing electric utilities to recover certain precertification costs through rates.

Public Hearing: Assembly Committee on Energy and Utilities on October 15, 2025 Executive Session: Assembly Committee on Energy and Utilities on Nov. 20, 2025 (votes: 12-1, one Dem voted no)

Assembly Floor: 86-11 on January 22, 2026

Registrations

SB-502

James, Jesse (R)

A nuclear energy generation tax credit; prioritizing nuclear energy resources;

approval of certain electric tariffs for

Public Hearing: Senate Committee on Utilities, Tech. & Tourism on Dec. 18, 2025

 

 

very large customers; and authorizing electric utilities to recover certain

precertification costs through rates.

 

AB-228

Born, Mark (R)

Tax incremental financing districts containing qualified data centers.

Public Hearing: Assembly Committee on Ways and Means on April 30, 2025

Registrations

SB-241

Jagler, John (R)

Tax incremental financing districts containing qualified data centers.

Public Hearing: Senate Committee on Gov. Operations, Labor & Econ. Dev. On May 21, 2025

2025 WI

Act 16 (AB-140)

Brooks, Robert (R)

Limitations on the total value of taxable property that may be included in a tax incremental financing district created in

the city of Port Washington.

Passed the full Legislature and signed into law.

2025 WI

Act 12 SB-

125

Bradley, Julian (R)

A nuclear power siting study and time limits for taking final action on certain

certificate of public convenience and necessity applications.

Passed the full Legislature and signed into Law

AB-472

James, Jesse (R)

A nuclear energy generation tax credit; prioritizing nuclear energy resources; approval of certain electric tariffs for very large customers; and authorizing electric utilities to recover certain precertification costs through rates.

Floor Votes:

Passed the Assembly (86-11)

AB-657

Feyen, Daniel (R)

A sales and use tax exemption for nuclear fusion technology projects.

Floor Votes:

Passed Assembly 92-6