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Bills · 2025-2026 Regular Session

SB 843

Died at session end Official bill text Atom feed

Relating to: certain requirements related to data centers.

Data processing Energy conservation Natural resources department of — Administration Public service commission Public utility Water supply

  1. Introduced, stopped here
  2. Passes Senate, not reached
  3. Passes Assembly, not reached
  4. Governor signs, not reached
  5. Law, not reached

Unfamiliar terms? Glossary

What this bill does

Plain-language analysis by the nonpartisan Legislative Reference Bureau

This bill establishes the following requirements related to data centers:

1. The Public Service Commission must ensure in its rate-making orders that no costs associated with the construction or extension of electric infrastructure that primarily serves a data center are allocated to or recovered from any other customer. Under current law, a public utility generally may not make a change to its rate schedules that constitutes an increase in rates, except by order of PSC after an investigation and opportunity for hearing.

2. Any renewable energy facility that primarily serves the load of a data center must be located at the site of the data center.

3. Water used by a data center for cooling purposes must be contained in a closed-loop cooling system, which is a system for removing heat from equipment and that relies on a fixed volume of water that is continually recycled.

4. The operator of a data center must annually report to the Department of Natural Resources the total amount of water used by the data center for the 12-month period prior to submitting the report.

5. A person may not operate a data center unless they file with DNR a bond or other security in an amount sufficient to cover the estimated cost of fulfilling any required reclamation.

6. If construction of a proposed data center is not completed, the owner must notify DNR and commence restoring the parcel to the condition that existed prior to any construction on the data center.

Sponsors

Introduced by: Feyen (R) , Jagler (R) , James (R) , Marklein (R) , Quinn (R) , Wimberger (R)

27 cosponsors

Allen (R) , Armstrong (R) , B. Jacobson (R) , Born (R) , Brooks (R) , Dallman (R) , Dittrich (R) , Green (R) , Gundrum (R) , Knodl (R) , Kreibich (R) , Krug (R) , Maxey (R) , Melotik (R) , Murphy (R) , Nedweski (R) , Neylon (R) , Novak (R) , O'Connor (R) , Penterman (R) , Petersen (R) , Snyder (R) , Sortwell (R) , Summerfield (R) , Tranel (R) , Wittke (R) , Zimmerman (R)

Registered lobbying interests · 25

Organizations that registered lobbying activity on this bill with the Wisconsin Ethics Commission. Registration means interest, not a position for or against. Official record

Votes

Senate: Report adoption of Senate Substitute Amendment 1 recommended by Committee on Utilities, Technology and Tourism, Ayes 3, Noes 2

Passed 3–2 Mar 13, 2026 official source full page

No individual roll call was recorded for this vote. Committee votes and some older sessions record totals only.

Senate: Report passage as amended recommended by Committee on Utilities, Technology and Tourism, Ayes 3, Noes 2

Passed 3–2 Mar 13, 2026 official source full page

No individual roll call was recorded for this vote. Committee votes and some older sessions record totals only.

Full history

  1. Jan 15, 2026 · Senate

    Introduced by Senators Quinn, Feyen, Jagler, James, Marklein and Wimberger; cosponsored by Representatives Zimmerman, Born, Allen, Armstrong, Brooks, Dallman, Dittrich, Green, Gundrum, B. Jacobson, Knodl, Krug, Kreibich, Maxey, Melotik, Murphy, Nedweski, Neylon, Novak, O'Connor, Penterman, Petersen, Snyder, Sortwell, Summerfield, Tranel and Wittke

  2. Jan 15, 2026 · Senate

    Read first time and referred to Committee on Utilities, Technology and Tourism

  3. Feb 12, 2026 · Senate

    Senate Substitute Amendment 1 offered by Senator Quinn

  4. Feb 17, 2026 · Senate

    Public hearing held

  5. Mar 13, 2026 · Senate

    Executive action taken

  6. Mar 13, 2026 · Senate

    Report adoption of Senate Substitute Amendment 1 recommended by Committee on Utilities, Technology and Tourism, Ayes 3, Noes 2

  7. Mar 13, 2026 · Senate

    Report passage as amended recommended by Committee on Utilities, Technology and Tourism, Ayes 3, Noes 2

  8. Mar 13, 2026 · Senate

    Available for scheduling

  9. Mar 17, 2026 · Senate

    Senate Substitute Amendment 2 offered by Senator Nass

  10. Mar 23, 2026 · Senate

    Failed to pass pursuant to Senate Joint Resolution 1