Executive order targets at least 2 GW new nuclear capacity – Governor JB Pritzker signed an order aiming to deliver two gigawatts of clean nuclear power, enough for roughly two million Illinois homes, and instructed state agencies to begin site identification and regulatory work [1][2].
30‑year moratorium on large reactors ends Jan 1 2026 – Legislation passed on 30 Oct 2025 lifted the ban on constructing new large‑scale reactors; Pritzker signed the bill into law on 8 Jan 2026, opening the path for new builds [1].
Existing fleet provides over half of state electricity – Eleven operating reactors currently supply more than 50 % of Illinois’ electricity, a result of earlier policies that kept the large‑scale nuclear fleet running after a 2021 law ensured its continuation [1].
Small modular reactors allowed up to 300 MWe from 2026 – A 2023 law authorized construction of SMRs with capacities up to 300 megawatts electric, expanding nuclear options beyond traditional large reactors [1].
Interagency work includes 60‑day notices of inquiry – The Illinois Power Agency and Illinois Commerce Commission must issue notices of inquiry to potential developers and interested communities within 60 days, data that will feed the next Integrated Resource Plan [1][2].
Clean Air Task Force applauds the nuclear push – Wibke Heymach, senior Midwest regional policy manager at the Clean Air Task Force, said the move supports Illinois’ 100 % carbon‑free goal and praised the governor’s leadership on clean, firm energy [1].