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AB901: Bill Text
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2025 - 2026 LEGISLATURE
LRB-0608/1
EHS:cjs
2025 ASSEMBLY BILL 901
January 23, 2026 - Introduced by Representatives
Krug
,
Behnke
,
Goeben
,
Kaufert
,
Knodl
and
Melotik
, cosponsored by Senator
Wimberger
. Referred to Committee on Energy and Utilities.
AB901,1,4
1
An Act
to renumber
196.496 (2);
to renumber and amend
196.496 (1);
to
2
create
196.496 (1) (a), (c), (d) and (e), 196.496 (2) (title), 196.496 (2) (b) and
3
196.496 (3) of the statutes;
relating to:
net metering for rooftop solar energy
4
systems.
Analysis by the Legislative Reference Bureau
Under this bill, an electric provider may not prohibit an interconnection with a rooftop solar energy system on the basis of the system’s generating capacity if the system’s generating capacity does not exceed 500 kilowatts for a commercial building or 30 kilowatts for a residential building. Under the bill, an electric provider is a public utility that owns or operates a retail electric distribution system, or a retail electric cooperative. The bill provides that, in determining whether a rooftop solar energy system’s generating capacity exceeds those limits, an electric provider may not include the generating capacity, energy storage capacity, or discharge power rating of a battery energy storage system associated with the rooftop solar energy system. The bill also provides that a rooftop solar energy system may not interconnect to electric distribution facilities unless the system includes advanced metering infrastructure and allows for meter aggregation.
The bill requires each electric provider to establish a standardized net metering agreement to be used for all customer-owned rooftop solar energy systems that meet the generating capacity limits described above. The bill applies a number of requirements to such a standardized net metering agreement, including that the electric provider must issue to a customer a credit for any electricity generated by the customer’s rooftop solar energy system that is delivered to the electric power distribution grid. The bill requires that this credit be valued at 100 percent of the retail rate of electricity and applied against the customer’s electric bill in any subsequent month. The bill provides that such credits expire on March 31 of each calendar year, and that any unexpired credits are transferable to a new building owner at the time of sale.
Under the bill, an electric provider may revise a standardized net metering agreement if the adoption rate of rooftop solar energy systems in its service territory exceeds 10 percent in any of the preceding 12 months. The same requirements apply to a revised net metering agreement, except that the value of a credit issued to a customer is 90 percent of the retail rate of electricity. The bill provides that a revised agreement takes effect 60 days after written notice is provided to all customers in the electric provider’s service area.
The people of the state of Wisconsin, represented in senate and assembly, do enact as follows:
AB901,1
1
Section
1
.
196.496 (1) of the statutes is renumbered 196.496 (1) (intro.) and
2
amended to read:
AB901,2,3
3
196.496
(1)
Definition
Definitions
.
(intro.) In this section
, “distributed
:
AB901,2,7
4
(b) “Distributed
generation facility” means a facility for the generation of
5
electricity with a capacity of no more than 15 megawatts that is located near the
6
point where the electricity will be used or is in a location that will support the
7
functioning of the electric power distribution grid.
AB901,2
8
Section
2
.
196.496 (1) (a), (c), (d) and (e) of the statutes are created to read:
AB901,2,10
9
196.496
(1)
(a) “Commercial building” has the meaning given in s. 196.795 (1)
10
(e).
AB901,2,11
11
(c) “Electric provider” has the meaning given in s. 16.957 (1) (f).
AB901,2,12
12
(d) “Residential building” means a one-family or 2-family dwelling.
AB901,3,4
1
(e) “Rooftop solar energy system” means photovoltaic equipment that directly
2
converts solar energy into electricity, that can be interconnected behind the
3
customer’s electric meter, and that can directly serve the energy load of the
4
customer.
AB901,3
5
Section
3
.
196.496 (2) (title) of the statutes is created to read:
AB901,3,6
6
196.496
(2)
(title)
Interconnection.
AB901,4
7
Section
4
.
196.496 (2) of the statutes is renumbered 196.496 (2) (a).
AB901,5
8
Section
5
.
196.496 (2) (b) of the statutes is created to read:
AB901,3,12
9
196.496
(2)
(b)
Rooftop solar energy systems.
1. An electric provider may not
10
prohibit an interconnection with a rooftop solar energy system on the basis of the
11
system’s generating capacity if the system’s generating capacity does not exceed any
12
of the following:
AB901,3,13
13
a. On a commercial building, 500 kilowatts.
AB901,3,14
14
b. On a residential building, 30 kilowatts.
AB901,3,17
15
2. A rooftop solar energy system may not interconnect to electric distribution
16
facilities unless the rooftop solar energy system includes advanced metering
17
infrastructure and allows for meter aggregation.
AB901,3,21
18
3. An electric provider may not include in the calculation of a rooftop solar
19
energy system’s generating capacity under subd. 1. the generating capacity, energy
20
storage capacity, or discharge power rating of a battery energy storage system
21
associated with the rooftop solar energy system.
AB901,6
22
Section
6
.
196.496 (3) of the statutes is created to read:
AB901,4,4
23
196.496
(3)
Net metering billing system.
(a)
Net metering agreements.
24
Each electric provider shall adopt a standardized net metering agreement to be
1
used for all customer-owned rooftop solar energy systems that do not exceed the
2
generating capacity limits under sub. (2) (b). All of the following apply to a
3
standardized net metering agreement adopted by an electric provider under this
4
paragraph:
AB901,4,7
5
1. The electric provider shall bill a customer in accordance with normal billing
6
practices for any electricity the customer uses in excess of the electricity generated
7
by the customer’s rooftop solar energy system.
AB901,4,12
8
2. Except as provided under subd. 3. and par. (b), for any electricity generated
9
by a customer’s rooftop solar energy system that is delivered to the electric
10
provider’s electric power distribution grid, the electric provider shall issue to the
11
customer a credit at a value of 100 percent of the retail rate of electricity to be
12
applied against the customer’s electric bill in any subsequent month.
AB901,4,14
13
3. Credits issued to a customer under subd. 2. expire on March 31 of each
14
calendar year.
AB901,4,16
15
4. A customer is not entitled to receive a cash payment for any credit issued
16
under subd. 2. unless specifically authorized under federal law.
AB901,4,18
17
5. An electric provider may require that a credit issued under subd. 2. be used
18
only toward a customer’s consumption of electricity.
AB901,4,20
19
6. Any unexpired credit issued under subd. 2. to a customer is transferable to
20
a new owner of the building at the time of sale.
AB901,4,23
21
7. Any service or usage fee that an electric provider charges to a customer who
22
owns a rooftop solar energy system shall be commensurate with service or usage
23
fees charged to other customers of a similar class.
AB901,5,12
1
(b)
Revised agreements.
1. An electric provider may revise a standardized net
2
metering agreement under par. (a) if the adoption rate of rooftop solar energy
3
systems in the electric provider’s service territory exceeds 10 percent in any of the
4
preceding 12 months. The electric provider shall calculate the adoption rate of
5
rooftop solar energy systems by dividing the aggregate gross power rating, in
6
alternating current, of all in-service rooftop solar energy systems in the electric
7
provider’s service territory by the total summer peak demand of the electric
8
provider. For purposes of the calculation under this subdivision, an electric
9
provider may not include in the aggregate gross power rating of all in-service
10
rooftop solar energy systems the generating capacity, energy storage capacity, or
11
discharge power rating of battery energy storage systems associated with those
12
rooftop solar energy systems.
AB901,5,14
13
2. Paragraph (a) 1. to 7. apply to the revised agreement except that the value
14
of a credit issued under par. (a) 2. is 90 percent of the retail rate of electricity.
AB901,5,17
15
3. The revised agreement takes effect 60 days after the electric provider
16
provides written notice of the revision to all customers in the electric provider’s
17
service territory.
AB901,5,22
18
(c)
Minimum standards.
The standards for a standardized net metering
19
agreement and revised standardized net metering agreement under this subsection
20
are minimum standards. An electric provider may offer a standardized net
21
metering agreement on terms more favorable to customers than those provided
22
under this subsection.
AB901,5,23
23
(end)
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