PLUG-IN SOLAR ENERGY SYSTEMS

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104TH GENERAL ASSEMBLY
State of Illinois
2025 and 2026
HB4524

Introduced 1/30/2026, by Rep. Daniel Didech - Laura Faver Dias

SYNOPSIS AS INTRODUCED:

55 ILCS 5/5-46005
65 ILCS 5/11-15.5-5
220 ILCS 5/16-507.5a new
765 ILCS 165/10

Amends the Public Utilities Act. Provides that "plug-in solar energy
system" means a moveable photovoltaic generation device that (i) may or
may not include an energy storage system; (ii) exports no more than 1,200
watts to an outlet; (iii) is designed to be connected to a building's
electrical system through a standard outlet; (iv) is intended primarily to
offset part of an eligible customer's electricity consumption; and (v) is
certified by Underwriters Laboratories or an equivalent nationally
recognized testing laboratory. Provides that an electricity provider shall
not require an eligible customer who uses, or intends to install and use, a
plug-in solar energy system to do certain actions. Provides that a plug-in
solar energy system is exempt from interconnection requirements under
provisions concerning net electricity metering and any rules adopted
pursuant to those provisions. Provides that a plug-in solar energy system
is not eligible for net electricity metering or any distributed generation
rebate. Provides that an electricity provider is not liable for any damage
or injury caused by an eligible customer's plug-in solar energy system.
Provides that a plug-in solar energy system that has a maximum power output
to a receptacle outlet of 391 watts or less is exempt from any product
listing standard that would require alterations to a building's premises,
wiring, or electrical panels. Provides that landlords, homeowners'
associations, common interest community associations, and condominium unit
owners' associations shall not adopt, enforce, or attempt to enforce any
restriction, covenant, bylaw, regulation, lease stipulation, or other rule
that directly or indirectly restricts, prohibits, or imposes unreasonable
conditions on the installation, use, or operation of a plug-in solar
energy system. Amends the Counties Code, the Illinois Municipal Code, and
the Homeowners' Energy Policy Statement Act. Provides that "solar energy
system" includes a plug-in solar energy system. Makes other changes.
LRB104 17587 AAS 31015 b

A BILL FOR

HB4524
LRB104 17587 AAS 31015 b
1

AN ACT concerning regulation.

2

Be it enacted by the People of the State of Illinois,
3
represented in the General Assembly:

4

Section 5.
The Counties Code is amended by changing
5
Section 5-46005 as follows:

6

(55 ILCS 5/5-46005)
7

(This Section may contain text from a Public Act with a
8
delayed effective date
)
9

Sec. 5-46005.
Definitions.
As used in this Division:
10

"Low-voltage solar-powered device" means a piece of
11
equipment designed for a particular purpose, including, but
12
not limited to, doorbells, security systems, and illumination
13
equipment, powered by a solar collector operating at less than
14
50 volts, and located:
15

(1) entirely within the lot or parcel owned by the
16

property owner; or
17

(2) within a common area without being permanently
18

attached to common property.
19

"Plug-in solar energy system" has the meaning given to
20
that term in Section 16-507.5a of the Public Utilities Act.

21

"Solar collector" means:
22

(1) an assembly, structure, or design, including
23

passive elements, used for gathering, concentrating, or

HB4524
- 2 -
LRB104 17587 AAS 31015 b
1

absorbing direct and indirect solar energy and specially
2

designed for holding a substantial amount of useful
3

thermal energy and to transfer that energy to a gas,
4

solid, or liquid or to use that energy directly;
5

(2) a mechanism that absorbs solar energy and converts
6

it into electricity;
7

(3) a mechanism or process used for gathering solar
8

energy through wind or thermal gradients; or
9

(4) a component used to transfer thermal energy to a
10

gas, solid, or liquid, or to convert it into electricity.
11

"Solar energy" means radiant energy received from the sun
12
at wavelengths suitable for heat transfer, photosynthetic use,
13
or photovoltaic use.
14

"Solar energy system" means:
15

(1) a complete assembly, structure, or design of a
16

solar collector or a solar storage mechanism that uses
17

solar energy for generating electricity or for heating or
18

cooling gases, solids, liquids, or other materials; and
19

(2) the design, materials, or elements of a system and
20

its maintenance, operation, and labor components, and the
21

necessary components, if any, of supplemental conventional
22

energy systems designed or constructed to interface with a
23

solar energy system.
24

"Solar energy system" includes a plug-in solar energy
25
system.
26

"Solar storage mechanism" means equipment or elements,

HB4524
- 3 -
LRB104 17587 AAS 31015 b
1
such as piping and transfer mechanisms, containers, heat
2
exchangers, batteries, or controls thereof and gases, solids,
3
liquids, or combinations thereof, that are utilized for
4
storing solar energy, gathered by a solar collector, for
5
subsequent use.
6
(Source: P.A. 104-458, eff. 6-1-26.)

7

Section 10.
The Illinois Municipal Code is amended by
8
changing Section 11-15.5-5 as follows:

9

(65 ILCS 5/11-15.5-5)
10

(This Section may contain text from a Public Act with a
11
delayed effective date
)
12

Sec. 11-15.5-5.
Definitions.
As used in this Division:
13

"Low-voltage solar-powered device" means a piece of
14
equipment designed for a particular purpose, including, but
15
not limited to, doorbells, security systems, and illumination
16
equipment, powered by a solar collector operating at less than
17
50 volts, and located:
18

(1) entirely within the lot or parcel owned by the
19

property owner; or
20

(2) within a common area without being permanently
21

attached to common property.
22

"Plug-in solar energy system" has the meaning given to
23
that term in Section 16-507.5a of the Public Utilities Act.

24

"Solar collector" means:

HB4524
- 4 -
LRB104 17587 AAS 31015 b
1

(1) an assembly, structure, or design, including
2

passive elements, used for gathering, concentrating, or
3

absorbing direct and indirect solar energy and specially
4

designed for holding a substantial amount of useful
5

thermal energy and to transfer that energy to a gas,
6

solid, or liquid or to use that energy directly;
7

(2) a mechanism that absorbs solar energy and converts
8

it into electricity;
9

(3) a mechanism or process used for gathering solar
10

energy through wind or thermal gradients; or
11

(4) a component used to transfer thermal energy to a
12

gas, solid, or liquid, or to convert it into electricity.
13

"Solar energy" means radiant energy received from the sun
14
at wavelengths suitable for heat transfer, photosynthetic use,
15
or photovoltaic use.
16

"Solar energy system" means:
17

(1) a complete assembly, structure, or design of a
18

solar collector or a solar storage mechanism that uses
19

solar energy for generating electricity or for heating or
20

cooling gases, solids, liquids, or other materials; and
21

(2) the design, materials, or elements of a system and
22

its maintenance, operation, and labor components, and the
23

necessary components, if any, of supplemental conventional
24

energy systems designed or constructed to interface with a
25

solar energy system.
26

"Solar energy system" includes a plug-in solar energy

HB4524
- 5 -
LRB104 17587 AAS 31015 b
1
system.

2

"Solar storage mechanism" means equipment or elements,
3
such as piping and transfer mechanisms, containers, heat
4
exchangers, batteries, or controls thereof and gases, solids,
5
liquids, or combinations thereof, that are utilized for
6
storing solar energy, gathered by a solar collector, for
7
subsequent use.
8
(Source: P.A. 104-458, eff. 6-1-26.)

9

Section 15.
The Public Utilities Act is amended by adding
10
Section 16-507.5a as follows:

11

(220 ILCS 5/16-507.5a new)
12

Sec. 16-507.5a.
Plug-in solar energy system.
13

(a) As used in this Section:
14

"Electricity provider" has the meaning given to that term
15
in Section 16-107.5.
16

"Eligible customer" means a retail customer of an
17
electricity provider.
18

"Net electricity metering" has the meaning given to that
19
term in Section 16-107.5.
20

"Plug-in solar energy system" means a moveable
21
photovoltaic generation device that:
22

(1) may or may not include an energy storage system;
23

(2) exports no more than 1,200 watts to an outlet;
24

(3) is designed to be connected to a building's

HB4524
- 6 -
LRB104 17587 AAS 31015 b
1

electrical system through a standard outlet;
2

(4) is intended primarily to offset part of an
3

eligible customer's electricity consumption; and
4

(5) is certified by Underwriters Laboratories or an
5

equivalent nationally recognized testing laboratory.
6

(b) An electricity provider shall not require an eligible
7
customer who uses, or intends to install and use, a plug-in
8
solar energy system to do any of the following:
9

(1) obtain the electricity provider's approval before
10

installing or using the plug-in solar energy system;
11

(2) pay a fee or charge related to the installation or
12

use of the plug-in solar energy system; or
13

(3) install additional controls or equipment beyond
14

what is integrated into the plug-in solar energy system.
15

(c) A plug-in solar energy system is exempt from
16
interconnection requirements under Section 16-107.5 and any
17
rules adopted by the Commission pursuant to Section 16-107.5.
18

(d) A plug-in solar energy system is not eligible for net
19
electricity metering under Section 16-107.5 or any rebate
20
under Section 16-107.6.
21

(e) An electricity provider is not liable for any damage
22
or injury caused by an eligible customer's plug-in solar
23
energy system.
24

(f) A plug-in solar energy system that has a maximum power
25
output to a receptacle outlet of 391 watts or less is exempt
26
from any building safety code provisions or any product

HB4524
- 7 -
LRB104 17587 AAS 31015 b
1
listing standard provisions that would require alterations to
2
a building's premises, wiring, or electrical panels.
3
Landlords, homeowners' associations, common interest community
4
associations, and condominium unit owners' associations shall
5
not adopt, enforce, or attempt to enforce any restriction,
6
covenant, bylaw, regulation, lease stipulation, or other rule
7
that directly or indirectly restricts, prohibits, or imposes
8
unreasonable conditions on the installation, use, or operation
9
of a plug-in solar energy system subject to this subsection
10
(f). Any such restriction, covenant, bylaw, regulation, lease
11
stipulation, or other rule is void and unenforceable as a
12
matter of public policy. Landlords, homeowners' associations,
13
common interest community associations, and condominium unit
14
owners' associations may not impose fees, insurance
15
requirements, or procedural conditions that function as a
16
prohibition on the installation, use, or operation of a
17
plug-in solar energy system subject to this subsection (f).
18
This subsection (f) applies only to leases, contracts,
19
covenants, bylaws, rules, or other governing documents
20
created, entered into, renewed, or amended on or after the
21
effective date of this amendatory Act of the 104th General
22
Assembly.

23

Section 20.
The Homeowners' Energy Policy Statement Act is
24
amended by changing Section 10 as follows:

HB4524
- 8 -
LRB104 17587 AAS 31015 b
1

(765 ILCS 165/10)
2

Sec. 10.
Definitions.
In this Act:
3

"Plug-in solar energy system" has the meaning given to
4
that term in Section 16-507.5a of the Public Utilities Act.

5

"Solar energy" means radiant energy received from the sun
6
at wave lengths suitable for heat transfer, photosynthetic
7
use, or photovoltaic use.
8

"Solar collector" means:
9

(1) an assembly, structure, or design, including
10

passive elements, used for gathering, concentrating, or
11

absorbing direct and indirect solar energy, specially
12

designed for holding a substantial amount of useful
13

thermal energy and to transfer that energy to a gas,
14

solid, or liquid or to use that energy directly; or
15

(2) a mechanism that absorbs solar energy and converts
16

it into electricity; or
17

(3) a mechanism or process used for gathering solar
18

energy through wind or thermal gradients; or
19

(4) a component used to transfer thermal energy to a
20

gas, solid, or liquid, or to convert it into electricity.
21

"Solar storage mechanism" means equipment or elements
22
(such as piping and transfer mechanisms, containers, heat
23
exchangers, batteries, or controls thereof, and gases, solids,
24
liquids, or combinations thereof) that are utilized for
25
storing solar energy, gathered by a solar collector, for
26
subsequent use.

HB4524
- 9 -
LRB104 17587 AAS 31015 b
1

"Solar energy system" means:
2

(1) a complete assembly, structure, or design of solar
3

collector, or a solar storage mechanism, which uses solar
4

energy for generating electricity or for heating or
5

cooling gases, solids, liquids, or other materials; and
6

(2) the design, materials, or elements of a system and
7

its maintenance, operation, and labor components, and the
8

necessary components, if any, of supplemental conventional
9

energy systems designed or constructed to interface with a
10

solar energy system.
11

"Solar energy system" includes a plug-in solar energy
12
system.

13
(Source: P.A. 102-161, eff. 7-26-21.)

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