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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

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

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.

Referred to Assembly Committee on Energy and Utilities

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 rate on large-scale data center projects; and granting rule-making authority.

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

AB-1036

Moses, Clint (R)

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

Referred to Committee on Ways and Means

SB-969

Jacque, Andre (R)

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

Public Hearing: Senate Committee on 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)

 

Referred to joint committee on Finance

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 21, 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

SB-502

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.

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

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

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.

Public Hearing: Assembly Committee on Energy and Utilities on October 15, 2025

Executive Session: Assembly Committee on Energy and Utilities on November 20, 2025

Floor Votes: Passed the Assembly (86-11) on January 1, 2026

SB-502

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. 

Public Hearing: Senate Committee on Utilities, Technology, and Tourism on December 18, 2025

AB-657

Feyen, Daniel (R)

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

Public Hearing: Assembly Committee on Ways and Means on January 8, 2026.

Executive Session: Assembly Committee on Ways and Means on February 4, 2026. Senate executive action taken on February 16, 2026.

Floor Votes: Passed Assembly 92-6 on February 12, 2026

SB-636

Feyen, Daniel (R)

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

Public Hearing: Senate Committee on Agriculture and Revenue on January 13, 2026

Executive Session: Senate Committee on Agriculture and Revenue on February 3, 2026

 

Referred to joint committee on Finance on February 13, 2026