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HB 3525

UTIL-2050 HEAT DECARBONIZATION

104th Regular Session Introduced by Robyn Gabel and 5 co-sponsors

HB 3525 shifts Illinois building heating from gas to electrification by emissions standards, curb on gas expansions, and tradable clean-heat credits.

Added Co-Sponsor Rep. Camille Y. Lilly
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Bill Summary · HB 3525

HB 3525 — UTIL-2050 HEAT DECARBONIZATION (Illinois, 104th GA)

Status: Introduced Feb 18, 2025; multiple committee actions April–May 2025; added co-sponsors through May 28, 2025. Companion: SB 1959.

Purpose / Intent

HB 3525 establishes a statutory framework to advance decarbonization of building heating and to align gas utility regulation with Illinois’ long‑term emissions goals. The bill creates emissions and compliance standards for building heating, retools gas utility planning and extension policies to limit expansion of gas infrastructure, creates a tradable clean‑heat credit system, and promotes workforce alignment and equity. It also authorizes the Illinois Commerce Commission (ICC) to approve discontinuation of gas service where reasonable substitute service is available.

Key provisions (summary of substantive changes)

  • Gas utility service cessation: Allows a gas utility to cease providing service if the ICC determines that adequate, reasonably priced substitute service is available to support the existing end uses of affected customers.
  • Natural gas energy efficiency: Establishes cost‑effective energy‑efficiency measures for natural gas utilities that supersede existing gas efficiency program provisions and take effect Jan 1, 2027.
  • Gas main/service extension policy: Requires policies to be based on the principle that the full incremental cost of new development/growth be borne by the customers causing those costs. Within 60 days after the bill’s effective date the ICC must open a docketed rulemaking to review tariffs that currently provide gas main/service extensions without additional charge beyond default administrative rule extensions.
  • Clean Building Heating Law (new Article): Creates emissions standards for heating in buildings (details in bill text) and related regulatory provisions.
  • 2050 Heat Decarbonization Standard (new Article): Establishes options for compliance, measures and required customer emission reductions, a system of tradable clean heat credits, banking of emission reductions, equity provisions, enforcement mechanisms, and required studies:
    • 2050 Heat Decarbonization Pathways Study
    • Gas infrastructure planning requirements
    • A study on gas utility financial incentive reform
    • Reporting requirements for utilities and agencies
  • Statewide Navigator Program Law (new Article): Creates a statewide navigator program (details in bill text) to support transitions.
  • Energy Transition Act amendment: Adds “electrification industries” to the definition of clean energy jobs; updates provisions on a Clean Jobs curriculum and workforce coordination.
  • Miscellaneous: Adds several new sections and articles to the Public Utilities Act (e.g., Sections 1-103, 3-128, Articles XXIII–XXV).

Who is affected

  • Gas utilities and their customers (residential, commercial, and industrial)
  • Developers and new customers who would bear incremental gas extension costs
  • Building owners/operators subject to heating emissions standards
  • Illinois Commerce Commission (regulatory duties and new rulemakings)
  • Workforce and training programs (Clean Jobs Workforce Network, Department of Labor, community colleges)
  • Low‑income and environmental justice communities (covered by equity provisions)
  • Electricity/clean‑energy sectors via increased electrification demand

Procedural / timeline notes

  • Introduced: Feb 18, 2025 (filed Feb 7; first reading Feb 18)
  • Referred and re‑referred through Rules, Public Utilities, and Natural Resources committees; hearings and testimony April 23, 2025
  • Committee substitute reported favorably Apr 29, 2025; committee report distributed and sent to Calendars May 7, 2025
  • Co‑sponsors added through May 28, 2025
  • Specific effective timing: most amendments effective immediately unless otherwise stated; gas energy‑efficiency measures take effect Jan 1, 2027; ICC must open the tariff review docket within 60 days of the bill’s effective date.

Potential impacts

  • Accelerates policy and regulation to shift building heating away from fossil gas toward lower‑carbon alternatives (including electrification).
  • Shifts cost responsibility for gas infrastructure expansion toward developers/new customers, potentially reducing subsidized gas expansions.
  • Introduces market mechanisms (clean heat credits) to enable compliance flexibility.
  • Triggers studies and regulatory changes that could affect gas utility revenues, planning, and rate design.
  • Includes workforce development and equity provisions intended to mitigate transition impacts on workers and vulnerable communities.

(Note: This summary is based on the bill text as introduced and committee substitute actions through May 2025. For statutory language, compliance details, and implementation specifics consult the bill text and subsequent amendments.)

Compiled from official sources — confirm details with the bill’s official record.

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