HB 4989 Illinois House · 104th Regular Session

DATA CENTER HEATING/COOLING

Summary
Creates the Data Center Heating and Cooling Act. Defines "air to water heat exchanger" and "data center". Provides that any new or existing data center in the State shall adopt a heat energy reuse plan that involves the use of an air to water heat exchanger to help heat homes and businesses in the area around the data center. Provides that any data center constructed on or after the effective date of the Act that has an aggregate demand load of 20 megawatts or more shall have a liquid cooling system, such as direct-to-chip cooling or immersion cooling, incorporated into the data center. Effective January 1, 2027.
Bill status in committee 1 of 4 stages cleared
Introduction
Feb 2026
Committee Review
Floor Vote
Governor
Introduced Feb 4, 2026 Last action Feb 6, 2026
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Full legislative history

Actions timeline

Total actions
3
Key actions
0
Committee
1
Feb 6, 2026
Committee
Referred to Rules Committee
lower
1 primary · 0 co-sponsors

Sponsors

Role
Legislator
Party
State
District
P
Photo of Kimberly Du Buclet
Kimberly Du Buclet
DDemocratic
IL
5