AEE · 10-Q · 2026Q3 · Full report

Illinois Gas Decarbonization Proceeding

AMEREN CORP · 2026-11-06 · Importance 17 · Surprise 24

An ICC order from November 2023 directed staff to develop a proceeding examining the future of gas, including decarbonizing Illinois’ natural-gas distribution system in light of the state’s CEJA goal of economy-wide 100% clean energy by 2050. Issues include stranded distribution assets, energy efficiency’s role, and effects on the electric distribution system. An ICC staff report is expected in 2026 and will inform any further ICC action.

Key facts

• The Illinois ICC’s future-of-gas proceeding is examining natural-gas distribution decarbonization, stranded-asset mitigation, energy efficiency, and impacts on the electric distribution system; a final ICC staff report is expected in 2026.