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SB28 • 2025

an incumbent transmission facility owner’s right to construct, own, and maintain certain transmission facilities and Public Service Commission procedures if the transmission facility is a regionally cost-shared transmission line

an incumbent transmission facility owner’s right to construct, own, and maintain certain transmission facilities and Public Service Commission procedures if the transmission facility is a regionally cost-shared transmission line

Technology
Did Not Pass

The latest official action shows that this bill did not move forward in that session.

Sponsor
Senator LeMahieu, cosponsored by Representative Petersen
Last action
2026-03-23
Official status
S - Utilities, Technology and Tourism
Effective date
Not listed

Plain English Breakdown

Using official source text because the generated explanation was unavailable or could not be confirmed against the official bill text.

an incumbent transmission facility owner’s right to construct, own, and maintain certain transmission facilities and Public Service Commission procedures if the transmission facility is a regionally cost-shared transmission line

an incumbent transmission facility owner’s right to construct, own, and maintain certain transmission facilities and Public Service Commission procedures if the transmission facility is a regionally cost-shared transmission line Status: S - Utilities, Technology and Tourism

What This Bill Does

  • an incumbent transmission facility owner’s right to construct, own, and maintain certain transmission facilities and Public Service Commission procedures if the transmission facility is a regionally cost-shared transmission line Status: S - Utilities, Technology and Tourism

Limits and Unknowns

  • This entry is temporarily using official source text because the generated explanation could not be confirmed against the official bill text during the last sync.

Bill History

  1. 2026-03-23 Sen.

    Failed to pass pursuant to Senate Joint Resolution 1

  2. 2026-03-19 Sen.

    Representative Emerson added as a cosponsor

  3. 2025-03-04 Sen.

    Public hearing held

  4. 2025-03-03 Sen.

    Senate Amendment 1 offered by Senator LeMahieu

  5. 2025-02-27 Sen.

    Senator Marklein added as a coauthor

  6. 2025-02-14 Sen.

    Senator Wanggaard added as a coauthor

  7. 2025-02-13 Sen.

    Senator Feyen added as a coauthor

  8. 2025-02-12 Sen.

    Introduced by Senator LeMahieu ; cosponsored by Representative Petersen

  9. 2025-02-12 Sen.

    Read first time and referred to Committee on Utilities and Tourism

Official Summary Text

an incumbent transmission facility owner’s right to construct, own, and maintain certain transmission facilities and Public Service Commission procedures if the transmission facility is a regionally cost-shared transmission line
Status: S - Utilities, Technology and Tourism

Current Bill Text

Read the full stored bill text
Wisconsin Legislature: SB28: Bill Text

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Proposal Text
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SB28: Bill Text

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2025 - 2026 LEGISLATURE
LRB-1667/1
EHS:skw
2025 SENATE BILL 28
February 12, 2025 - Introduced by Senator
LeMahieu
, cosponsored by Representative
Petersen
. Referred to Committee on Utilities and Tourism.
SB28,1,6
1
An Act

to repeal
196.485 (1) (cr), 196.485 (1) (ef) and 196.485 (3g);
to create

2
196.485 (1) (cr), 196.485 (1) (ef) and 196.485 (3g) of the statutes;
relating to:

3
an incumbent transmission facility owner’s right to construct, own, and
4
maintain certain transmission facilities and Public Service Commission
5
procedures if the transmission facility is a regionally cost-shared transmission
6
line.
Analysis by the Legislative Reference Bureau
This bill grants to an incumbent transmission facility owner the right to construct, own, and maintain a transmission facility that has been approved for construction in the Midcontinent Independent System Operator’s (MISO) transmission plan and that connects to transmission facilities owned by that incumbent transmission facility owner. Under the bill, an “incumbent transmission facility owner” includes a transmission company or transmission utility (a cooperative or public utility that owns a transmission facility and provides transmission service in this state), regardless of whether this state is its principal place of business or where it is organized or headquartered. Under current law, MISO is an organization that is subject to the jurisdiction of the Federal Energy Regulatory Commission and that coordinates and controls electric transmission in a region of the country that includes this state. The bill provides that the right to construct, own, and maintain a transmission facility that connects to transmission facilities owned by two or more incumbent transmission facility owners belongs individually and proportionally to each incumbent transmission facility owner, unless otherwise agreed upon in writing.
Under the bill, if under MISO’s transmission plan a regionally cost-shared transmission line has been approved for construction and connection to facilities owned by an incumbent transmission facility owner, the incumbent transmission facility owner must give the Public Service Commission written notice regarding the owner’s intent to construct, own, and maintain the line no later than 90 days after approval of the transmission plan or 90 days after the date on which this bill becomes law, whichever is later. If the owner indicates that it does not intent to construct the line, the bill requires it to fully explain that decision in the notice to PSC. In that case, the bill allows PSC to determine whether the incumbent transmission facility owner or another entity must construct the line, taking into consideration issues such as cost, efficiency, and reliability. The bill defines “regionally cost-shared transmission line” to mean a high-voltage transmission line that is eligible for regional cost sharing and is not subject to a right of first refusal in accordance with the MISO tariff.
The bill requires an incumbent transmission facility owner with the right to construct a MISO-approved regionally cost-shared transmission line to include in any application for a certificate of public convenience and necessity an estimate of the cost of construction, along with documentation that the estimate is the result of competitively bid engineering, procurement, and construction contracts. The bill also requires such an incumbent transmission facility owner to provide to PSC until construction is complete quarterly reports that include updated estimates of the construction cost and an explanation of any changes from prior cost estimates.
The bill requires an incumbent transmission facility owner with the right to construct a MISO-approved regionally cost-shared transmission line to, as soon as practicable after the information is available, submit a report to PSC, the assembly speaker, the assembly minority leader, the senate majority leader, the senate minority leader, and the governor detailing the amount of the costs of the transmission line project that are being charged to energy consumers outside this state.
The bill sunsets the rights and responsibilities created under the bill after 10 years.
The people of the state of Wisconsin, represented in senate and assembly, do enact as follows:
SB28,1
1
Section
1
.
196.485 (1) (cr) of the statutes is created to read:
SB28,3,3
1
196.485
(1)
(cr) “Incumbent transmission facility owner” includes a
2
transmission company or transmission utility, regardless of whether this state is its
3
principal place of business or where it is organized or headquartered.
SB28,2
4
Section

2
.
196.485 (1) (cr) of the statutes, as created by 2025 Wisconsin Act
5
.... (this act), is repealed.
SB28,3
6
Section
3
.
196.485 (1) (ef) of the statutes is created to read:
SB28,3,10
7
196.485
(1)
(ef) “Regionally cost-shared transmission line” means a high-
8
voltage transmission line that is eligible, in whole or in part, for regional cost
9
sharing and is not subject to a right of first refusal in accordance with the tariff of
10
the Midwest independent system operator.
SB28,4
11
Section

4
.
196.485 (1) (ef) of the statutes, as created by 2025 Wisconsin Act
12
.... (this act), is repealed.
SB28,5
13
Section
5
.
196.485 (3g) of the statutes is created to read:
SB28,3,23
14
196.485
(3g)

Incumbent transmission facility owner rights.
(a)
Rights.

15
Subject to the approval of the commission under s. 196.491 (3), an incumbent
16
transmission facility owner has the right to construct, own, and maintain a
17
transmission facility that has been approved for construction in the Midwest
18
independent system operator’s transmission plan and that connects to
19
transmission facilities owned by that incumbent transmission facility owner. The
20
right to construct, own, and maintain a transmission facility that connects to
21
transmission facilities owned by 2 or more incumbent transmission facility owners
22
belongs individually and proportionally to each incumbent transmission facility
23
owner, unless otherwise agreed upon in writing.
SB28,4,8
1
(b)
Commission procedure.
1. If, in the Midwest independent system
2
operator’s transmission plan, a regionally cost-shared transmission line has been
3
approved for construction and connection to facilities owned by an incumbent
4
transmission facility owner, the incumbent transmission facility owner shall give
5
written notice to the commission regarding the owner’s intent to construct, own,
6
and maintain the regionally cost-shared transmission line no later than 90 days
7
after approval of the transmission plan or 90 days after the effective date of this
8
subdivision .... [LRB inserts date], whichever is later.
SB28,4,15
9
2. If an incumbent transmission facility owner indicates in its notice to the
10
commission under subd. 1. that it does not intend to construct the regionally cost-
11
shared transmission line, it shall in the notice fully explain the basis for that
12
decision. In that case, the commission may determine whether the incumbent
13
transmission facility owner or another entity is required to construct the regionally
14
cost-shared transmission line, taking into consideration issues such as cost,
15
efficiency, reliability, and other factors identified in this chapter.
SB28,4,19
16
(c)
Cost control, requirement of competition, and cost allocation
. With respect
17
to a regionally cost-shared transmission line approved by the Midwest independent
18
system operator, an incumbent transmission facility owner with the right to
19
construct the transmission line shall do all of the following:
SB28,4,23
20
1. In any application filed pursuant to s. 196.491 (3), provide to the
21
commission an estimate of the cost to construct the regionally cost-shared
22
transmission line and documentation showing that this cost is the result of
23
competitively bid engineering, procurement, and construction contracts.
SB28,5,5
1
2. Until construction of the regionally cost-shared transmission line is
2
complete, provide to the commission a quarterly report that includes an updated
3
estimate of the cost to construct the regionally cost-shared transmission line and an
4
explanation of changes from prior cost estimates provided under this subdivision or
5
subd. 1.
SB28,5,10
6
3. As soon as practicable after the information is available, submit a report to
7
the commission, the assembly speaker, the assembly minority leader, the senate
8
majority leader, the senate minority leader, and the governor detailing the amount
9
of the costs of the regionally cost-shared transmission line project that are being
10
charged to energy consumers outside this state.
SB28,6
11
Section

6
.
196.485 (3g) of the statutes, as created by 2025 Wisconsin Act ....
12
(this act), is repealed.
SB28,7
13
Section

7
. Effective dates.
This act takes effect on the day after
14
publication, except as follows:
SB28,5,16
15
(
1
)

The repeal of ss. 196.485 (1) (cr) and (ef) and (3g) takes effect on the first
16
day of the 10th year beginning after publication.
SB28,5,17
17
(end)

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