Illinois 104th General Assembly Status: Introduced 1 D cosponsors

HB4989      — DATA CENTER HEATING/COOLING

Last action — Referred to Rules Committee

  1. 1
    Introduced
  2. 2
    In Committee
  3. 3
    Passed House
  4. 4
    Passed Senate
  5. 5
    To Executive
  6. 6
    Enacted

This bill has been introduced in the House. Introduced February 04, 2026. It must pass committee before a floor vote.

Next likely step: a committee referral and hearing.

Odds of enactment

Low chance

Based on the sponsor, cosponsors, and committee posture, this bill has a low chance of becoming law.

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A statistical estimate from our own model of past outcomes — an insight, not a guarantee. Policymaking is volatile.

Prognosis

Not enough signal yet

Not enough signal yet to read this bill's trajectory — we surface a likelihood only once there's real movement (stage, sponsorship, committee, or votes) to point to.

Based on stage, sponsorship breadth, committee status, recorded votes, and cross-state momentum — a description of the observable signals, not a prediction.

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 Text

We don't have the full text on file for this bill yet.

Read HB4989 on the official Illinois source →

Action History

  1. Referred to Rules Committee

  2. First Reading

  3. Filed with the Clerk by Rep. Kimberly Du Buclet

Sponsors

Sponsorship breakdown

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1 sponsors · 0 co-sponsors · 182 not signed on

Sponsors (1)

Co-sponsors (0)

None.

Not signed on (182)

182 members have not signed on to this bill.

Show all 182 →

"Not signed on" means a member has not sponsored or co-sponsored this bill — it does not imply opposition. Members flagged Voted No have a recorded No vote on this bill.

Whip count is in markup. Polling the chamber and every recorded vote this session. Only the first open is slow. It’s instant for you after this. Calling the roll · Tallying · Engrossing

Subjects

environment technology energy
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Frequently asked questions

What does HB4989      do?
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.
Who sponsors HB4989     ?
HB4989      is sponsored by Kimberly Du Buclet (Democrat).
What is the current status of HB4989     ?
This bill has been introduced in the House. Introduced February 04, 2026. It must pass committee before a floor vote.
Where can I track HB4989     ?
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Last checked for changes 3 months ago · updated continuously

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