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Bills from the 2025–26 session

Assembly Bill 472

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. (FE)

Topics: Electric utility, Energy conservation, Franchise: Taxation, Income tax: Credit, Public Service Commission

Passed the Assembly, then stopped

The Assembly passed it on Jan 22, 2026, but the Senate never voted on it. A bill has to ⁠. The last day for votes this session was Mar 19, 2026. To try again, a lawmaker would have to start a new bill.

  1. Introduced, passed

    Oct 1, 2025

  2. Committee, passed

    Approved

  3. Assembly vote, passed

    Passed Jan 22, 2026

  4. Senate vote, stopped here

    Stopped here. The Senate never voted on it.

  5. Governor, not reached

  6. Law, not reached

Latest entry in the official record, Mar 23, 2026: “Failed to concur in pursuant to ⁠”

Read the bill

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The same bill was also filed in the Senate as SB 502. That version died when the session ended.

What it would have done

Summary by the , the Legislature's nonpartisan drafting office. It's their wording, not ours.

This bill creates a nuclear energy generation tax credit, establishes nuclear energy as a high-priority energy option, provides for the approval of certain electric tariffs for very large customers, and authorizes electric utilities to recover certain precertification costs through rates, described in further detail below.

Nuclear energy generation tax credit The bill creates a nonrefundable income and franchise tax credit for nuclear energy generation. Beginning in tax year 2030, the credit is equal to the nominal rated capacity of a claimant’s nuclear energy facility measured in megawatts multiplied by an applicable credit factor. For the first 10 tax years for which a claimant claims the credit for a particular nuclear energy facility, the applicable credit factor is $10,000, and for each subsequent tax year the applicable credit factor decreases by $1,000. A claimant may not claim the credit for a particular nuclear energy facility for 20 or more tax years.

Read the full summary

Prioritizing nuclear energy resources The bill establishes as state policy that nuclear energy is a high-priority option, second only to energy efficiency and conservation, to be considered in meeting the state’s energy demands, over noncombustible renewable energy resources and combustible renewable energy resources. Under current law, it is the goal of the state that, to the extent it is cost effective and technically feasible, all new installed capacity for electric generation be based on renewable energy resources. The bill adds nuclear energy to this focus, along with renewable energy. Current law also provides that, in designing all new and replacement energy projects, a state agency or local governmental unit must rely to the greatest extent feasible on energy efficiency improvements and renewable energy resources if those are cost effective, are technically feasible, and do not have unacceptable environmental impacts. The bill adds nuclear energy resources to this list of prioritized resources.

Current law requires the Department of Administration to establish renewable energy percentage goals for certain state agencies to meet in 2007 and 2011 and then to submit a report to the governor and the legislature each March 1 concerning the degree of attainment of those goals during the preceding year. Under the bill, beginning in 2026, those reports must include nuclear energy in the definition of “renewable resource” for the purpose of that report.

Current law includes a deadline of June 1, 2016, by which the Public Service Commission was required to prepare a report stating whether the state had met a goal of 10 percent of all electric energy consumed in the state being renewable energy and, if not, why the goal was not achieved and how it may be achieved. Current law requires PSC to prepare and submit to the legislature similar reports biennially thereafter until the goal is achieved. This bill changes this goal to be 10 percent of all electric energy consumed in the state being low-carbon-emission energy, which is defined as energy derived from either a renewable resource or nuclear power, and updates the report deadline to June 1, 2027, and biennially thereafter.

Approval of very large customer tariffs The bill authorizes PSC to approve electric tariffs, or schedules of rates and charges, for certain very large customers. The bill defines “very large customer” to mean an electric public utility customer that owns or operates a facility that has an energy demand of at least 75 megawatts of electricity per month. Under the bill, PSC may approve a tariff for very large customers if the tariff ensures that other customers of the utility do not pay the costs associated with serving the demand of very large customers, the utility produces the electricity provided to very large customers from nuclear power, and any very large customers to which the tariff applies have consented to the tariff. Further, the bill requires PSC to approve a very large customer tariff that satisfies the conditions described above if the electricity provided to very large customers subject to the tariff is generated within 75 miles of the very large customers.

Recovery of certain precertification costs The bill authorizes PSC to approve recovery of qualifying precertification costs through an electric public utility’s rates. Under the bill, “qualifying precertification costs” are costs incurred by an electric public utility before filing an application for a certificate of public convenience and necessity (CPCN) or for a certificate of authority (CA) that are related to the development of nuclear energy, including costs related to feasibility studies, site evaluations, and preparation of regulatory filings. The bill applies to the rates of certain investor-owned electric public utilities and the recovery authorized under the bill includes recovery of a reasonable rate of return on an electric public utility’s precertification costs. Under current law, rates for utility service must be reasonable and just. Also, current law requires a person seeking to construct a large electric generating facility to obtain a CPCN from PSC, and a public utility must obtain a CA from PSC to construct certain other facilities and projects.

Who's behind it

5 representatives are its ⁠. All 5 are Republicans.

4 more lawmakers ⁠.

See all 9 names

Authors (5)

Signed on in support (4)

What it would cost

State agencies filed a . Each opens as a PDF from the Legislature.

Versions and amendments

Every text the Legislature printed for this bill, including proposed changes. Each opens on the Legislature's site.

How lawmakers voted

There were 6 votes on this bill.

Assembly Committee on Energy and Utilities vote on an amendment

Passed, 12 to 1 · Nov 20, 2025

No member-by-member record exists for this vote. Committee votes and some older sessions record totals only.

Official motion: “Report Assembly Substitute Amendment 2 adoption recommended by Committee on Energy and Utilities, Ayes 12, Noes 1”. Official record · This vote on its own page

Assembly Committee on Energy and Utilities vote to recommend it

Passed, 12 to 1 · Nov 20, 2025

No member-by-member record exists for this vote. Committee votes and some older sessions record totals only.

Official motion: “Report passage as amended recommended by Committee on Energy and Utilities, Ayes 12, Noes 1”. Official record · This vote on its own page

Assembly vote on an amendment

Passed, 54 to 43 · Jan 22, 2026

No member-by-member record exists for this vote. Committee votes and some older sessions record totals only.

Official motion: “Assembly Amendment 3 to Assembly Substitute Amendment 2 laid on table, Ayes 54, Noes 43”. Official record · This vote on its own page

Assembly vote on an amendment

Passed, 53 to 44 · Jan 22, 2026

No member-by-member record exists for this vote. Committee votes and some older sessions record totals only.

Official motion: “Assembly Amendment 4 to Assembly Substitute Amendment 2 laid on table, Ayes 53, Noes 44”. Official record · This vote on its own page

Assembly vote

Passed, 53 to 44 · Jan 22, 2026 · 2 didn't vote

See how each of the 99 representatives voted

D: Democrat, R: Republican

Yes (53)

No (44)

Didn't vote (2)

Official motion: “SHALL THE DECISION OF THE CHAIR STAND”. Official record · This vote on its own page

Assembly vote to pass it

Passed, 86 to 11 · Jan 22, 2026 · 2 didn't vote

See how each of the 99 representatives voted

D: Democrat, R: Republican

Yes (86)

Didn't vote (2)

Official motion: “PASSAGE”. Official record · This vote on its own page

What happened

  1. Mar 23, 2026

    The session ended, and the bill died with it.

  2. Jan 26, 2026

    Sent to the Senate Committee on Utilities, Technology and Tourism.

  3. Jan 22, 2026

    The Senate received it.

  4. Jan 22, 2026

    The Assembly passed it, 86 to 11.

  5. Jan 22, 2026

    The Assembly adopted it.

  6. Jan 22, 2026

    “Point of order that Assembly Amendment 2 to Assembly Substitute Amendment 2 not germane under Assembly Rule 54 (3)(f) well taken” (the official wording)

  7. Jan 22, 2026

    The Assembly adopted it.

  8. Nov 20, 2025

    Sent to the Assembly Committee on Rules.

  9. Nov 20, 2025

    The committee voted to recommend passing it, 12 to 1.

  10. Oct 16, 2025

    A state agency sent in its estimate of the cost.

  11. Oct 15, 2025

    The committee held a public hearing.

  12. Oct 15, 2025

    1 more representative signed on in support.

  13. Oct 14, 2025

    A state agency sent in its estimate of the cost.

  14. Oct 13, 2025

    A state agency sent in its estimate of the cost.

  15. Oct 2, 2025

    2 more representatives signed on in support.

  16. Oct 1, 2025

    Sent to the Assembly Committee on Energy and Utilities.

  17. Oct 1, 2025

    Introduced in the Assembly.

See the official record, word for word
  1. Oct 1, 2025 · Assembly

    Introduced by Representatives Sortwell, Behnke, Dittrich, Kreibich and Mursau; cosponsored by Senators James and Feyen

  2. Oct 1, 2025 · Assembly

    Read first time and referred to Committee on Energy and Utilities

  3. Oct 2, 2025 · Assembly

    Representatives Melotik and Murphy added as coauthors

  4. Oct 13, 2025 · Assembly

    Fiscal estimate received

  5. Oct 13, 2025 · Assembly

    Assembly Substitute Amendment 1 offered by Representative Sortwell

  6. Oct 14, 2025 · Assembly

    Fiscal estimate received

  7. Oct 15, 2025 · Assembly

    Representative Tucker added as a coauthor

  8. Oct 15, 2025 · Assembly

    Public hearing held

  9. Oct 16, 2025 · Assembly

    Fiscal estimate received

  10. Nov 19, 2025 · Assembly

    Assembly Substitute Amendment 2 offered by Representative Sortwell

  11. Nov 20, 2025 · Assembly

    Executive action taken

  12. Nov 20, 2025 · Assembly

    Report Assembly Substitute Amendment 2 adoption recommended by Committee on Energy and Utilities, Ayes 12, Noes 1

  13. Nov 20, 2025 · Assembly

    Report passage as amended recommended by Committee on Energy and Utilities, Ayes 12, Noes 1

  14. Nov 20, 2025 · Assembly

    Referred to committee on Rules

  15. Jan 15, 2026 · Assembly

    Assembly Amendment 1 to Assembly Substitute Amendment 2 offered by Representative Sortwell

  16. Jan 20, 2026 · Assembly

    Placed on calendar 1-22-2026 by Committee on Rules

  17. Jan 22, 2026 · Assembly

    Read a second time

  18. Jan 22, 2026 · Assembly

    Assembly Amendment 1 to Assembly Substitute Amendment 2 adopted

  19. Jan 22, 2026 · Assembly

    Assembly Amendment 2 to Assembly Substitute Amendment 2 offered by Representative DeSmidt

  20. Jan 22, 2026 · Assembly

    Point of order that Assembly Amendment 2 to Assembly Substitute Amendment 2 not germane under Assembly Rule 54 (3)(f) well taken

  21. Jan 22, 2026 · Assembly

    Decision of the Chair appealed

  22. Jan 22, 2026 · Assembly

    Decision of the Chair upheld, Ayes 53, Noes 44

  23. Jan 22, 2026 · Assembly

    Assembly Amendment 3 to Assembly Substitute Amendment 2 offered by Representative Miresse

  24. Jan 22, 2026 · Assembly

    Assembly Amendment 3 to Assembly Substitute Amendment 2 laid on table, Ayes 54, Noes 43

  25. Jan 22, 2026 · Assembly

    Assembly Amendment 4 to Assembly Substitute Amendment 2 offered by Representative Moore Omokunde

  26. Jan 22, 2026 · Assembly

    Assembly Amendment 4 to Assembly Substitute Amendment 2 laid on table, Ayes 53, Noes 44

  27. Jan 22, 2026 · Assembly

    Assembly Substitute Amendment 2 adopted

  28. Jan 22, 2026 · Assembly

    Ordered to a third reading

  29. Jan 22, 2026 · Assembly

    Rules suspended

  30. Jan 22, 2026 · Assembly

    Read a third time and passed, Ayes 86, Noes 11

  31. Jan 22, 2026 · Assembly

    Ordered immediately messaged

  32. Jan 22, 2026 · Senate

    Received from Assembly

  33. Jan 26, 2026 · Senate

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

  34. Mar 23, 2026 · Senate

    Failed to concur in pursuant to Senate Joint Resolution 1

Terms on this page

Second chamber's vote

A bill has to pass both the Assembly and the Senate in the same form before it goes to the governor.

Official term: Concurrence. More in the glossary

Senate Joint Resolution 1

The session's calendar. Any bill not passed by its last voting day dies.

Official term: Failed to pass pursuant to SJR 1. More in the glossary

Legislative Reference Bureau

The Legislature's nonpartisan office that drafts bills and writes the summary at the top of each one.

Official term: LRB analysis. More in the glossary

Author

A lawmaker who formally puts a bill forward. The text itself is drafted by the Legislative Reference Bureau.

Official term: Author, coauthor. More in the glossary

Signed on in support

Lawmakers who back a bill without being one of its authors, often from the other chamber.

Official term: Cosponsor. More in the glossary

Cost estimate

A state agency's estimate of what a bill would cost or save.

Official term: Fiscal estimate. More in the glossary

Roll call

A vote where each lawmaker's yes or no is recorded by name.

Official term: Roll call vote. More in the glossary

From the Wisconsin Legislature's official record, checked Sep 15, 2026. See the source

Second chamber's vote

A bill has to pass both the Assembly and the Senate in the same form before it goes to the governor.

Official term: Concurrence

Senate Joint Resolution 1

The session's calendar. Any bill not passed by its last voting day dies.

Official term: Failed to pass pursuant to SJR 1

Legislative Reference Bureau

The Legislature's nonpartisan office that drafts bills and writes the summary at the top of each one.

Official term: LRB analysis

Author

A lawmaker who formally puts a bill forward. The text itself is drafted by the Legislative Reference Bureau.

Official term: Author, coauthor

Signed on in support

Lawmakers who back a bill without being one of its authors, often from the other chamber.

Official term: Cosponsor

Cost estimate

A state agency's estimate of what a bill would cost or save.

Official term: Fiscal estimate

Roll call

A vote where each lawmaker's yes or no is recorded by name.

Official term: Roll call vote