HB 3399 Illinois House · 104th Regular Session

GEOTHERMAL HOMES AND BUSINESS

Summary

Creates the Geothermal Homes and Business Act. Provides that, beginning January 1, 2026, the long-term renewable resources procurement plan developed by the Illinois Power Agency shall include a Geothermal Homes and Business Program for the procurement of geothermal renewable energy credits. Sets forth provisions concerning the geothermal heating and cooling system calculation methodology; Program block allocation; Program block pricing; approved vendors; contract terms; utility cost recovery; extenuating circumstances; administration of the Act by the Illinois Power Agency; and the prohibition of double claiming geothermal renewable energy credits. Effective immediately.

Issues: ✓ Energy ✓ Environment

Bill status passed 3 of 5 stages cleared

Introduction

Apr 2025

Committee Review

Jun 2025

House Passage

Apr 2025

Senate Passage

Governor

Introduced Apr 14, 2025 Last action Jun 2, 2025

Maddy AI version diff · 1 comparison

What changed between versions

Introduced → Engrossed · 4 edits · Apr 10, 2025

MODERATE

The bill was amended to correct the program name from 'Business' to 'Businesses' for consistency. The most significant change is the addition of a requirement that qualifying geothermal systems must not feed electricity back to the grid, narrowing the scope of eligible equipment. The definition of the program was also updated to reflect the pluralized name.

Scope change

The bill's scope was narrowed by adding a restriction that eligible systems cannot export electricity back to the grid, excluding certain types of geothermal heat pumps from the program.

DEFINITION

The short title was changed from 'Geothermal Homes and Business Act' to 'Geothermal Homes and Businesses Act' to use the plural form.

The program name was updated from 'Geothermal Homes and Business Program' to 'Geothermal Homes and Businesses Program'.

ELIGIBILITY

A new requirement was added stating that qualifying systems must not feed electricity back to the grid at the level of the geothermal heat pump.

The eligibility criteria for space cooling systems were updated to include the phrase 'when applicable'.

Floor votes · House Apr 10, 2025

How they voted

77–36

Passed · 5 other

Total votes 118

Apr 10, 2025

D Democratic78

76 Yea 2

97% Yea

R Republican40

1 Yea 36 Nay 3

90% Nay

Vote distribution

All Yea All Nay Mixed No data

Full legislative history

Actions timeline

Total actions

Key actions

Committee

Amendments

Jun 2, 2025

Committee

Rule 3-9(a) / Re-referred to Assignments

upper

May 23, 2025

Upper · Passed

Rule 2-10 Committee Deadline Established As June 1, 2025

upper

May 9, 2025

Upper · Passed

Rule 2-10 Committee Deadline Established As May 23, 2025

upper

Apr 29, 2025

Committee

Assigned to Energy and Public Utilities

upper

Apr 23, 2025

Committee

Referred to Assignments

upper

Apr 14, 2025

Introduced

Arrive in Senate

upper

Apr 10, 2025

Lower · Passed

Third Reading - Short Debate - Passed 077-036-000

lower

Apr 8, 2025

Lower · Passed

House Floor Amendment No. 2 Adopted

lower

Apr 7, 2025

Lower · Passed

House Floor Amendment No. 2 Rules Refers to Energy & Environment Committee

lower

Apr 4, 2025

Committee

House Floor Amendment No. 2 Referred to Rules Committee

lower

Apr 4, 2025

Introduced

House Floor Amendment No. 2 Filed with Clerk by Rep. Joyce Mason

lower

Mar 18, 2025

Lower · Passed

Do Pass as Amended / Short Debate Energy & Environment Committee; 019-009-000

lower

Mar 18, 2025

Lower · Passed

House Committee Amendment No. 1 Adopted in Energy & Environment Committee; by Voice Vote

lower

Mar 18, 2025

Lower · Passed

House Committee Amendment No. 1 Rules Refers to Energy & Environment Committee

lower

Mar 17, 2025

Committee

House Committee Amendment No. 1 Referred to Rules Committee

lower

Mar 17, 2025

Introduced

House Committee Amendment No. 1 Filed with Clerk by Rep. Joyce Mason

lower

Mar 11, 2025

Committee

Assigned to Energy & Environment Committee

lower

Feb 18, 2025

Committee

Referred to Rules Committee

lower

2 primary · 16 co-sponsors