Illinois HB 5049: LOC GOV-RESIDENTIAL ENERGY

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104TH GENERAL ASSEMBLY 
State of Illinois 
2025 and 2026
HB5049

Introduced 2/10/2026, by Rep. Ann M. Williams 

SYNOPSIS AS INTRODUCED:

55 ILCS 5/5-46005

55 ILCS 5/5-46025

55 ILCS 5/5-46030 new

65 ILCS 5/11-15.5-5

65 ILCS 5/11-15.5-25

65 ILCS 5/11-15.5-30 new

 Amends the Counties Code and the Illinois Municipal Code. Provides that a county or a municipality may not adopt or enforce an ordinance, rule, or other measure that would regulate the installation or inspection of a residential energy backup system, including on a building with a shared roof. Defines "residential energy backup system". Effective June 1, 2026.

LRB104 19679 RTM 33128 b

A BILL FOR

HB5049LRB104 19679 RTM 33128 b

1 AN ACT concerning local government.

2 Be it enacted by the People of the State of Illinois, 

3represented in the General Assembly:

4 Section 1. Short title. This Act may be cited as the 

5Residential Storage Act.

6 Section 2. Legislative intent. The purpose of this Act is 

7to provide reliable energy at low cost to the People of 

8Illinois, strengthen the electric grid, and promote the use of 

9renewable energy resources by facilitating the deployment of 

10residential energy storage systems.

11 Section 5. The Counties Code is amended by changing 

12Sections 5-46005 and 5-46025 and by adding Section 5-46030 as 

13follows:

14 (55 ILCS 5/5-46005)

15 (This Section may contain text from a Public Act with a 

16delayed effective date)

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

18 "Low-voltage solar-powered device" means a piece of 

19equipment designed for a particular purpose, including, but 

20not limited to, doorbells, security systems, and illumination 

21equipment, powered by a solar collector operating at les