Illinois
Illinois is a major and rapidly growing data center hub where 2026 politics center on ratepayer protection, water/energy transparency, and local land-use fights rather than a statewide moratorium.
IARM Domain Signals
Energy/Power is the dominant stressor: Illinois lawmakers and local governments are focused on rising electricity bills, PJM/MISO capacity costs, and who funds the transmission and generation needed for hyperscale load (Illinois General Assembly, Chicago Tribune). Water/Geology is the secondary stressor: the state’s reporting bills and POWER Act proposals explicitly require water-use disclosure and cooling scrutiny, reflecting concern over cooling demand in a water-stressed context (Illinois General Assembly, ArentFox Schiff).
IIKey 2026 Races
None identified. Illinois's 2026 statewide and congressional races have not produced a clearly defined data-center-specific campaign track as of May 2026, though Gov. JB Pritzker (D) is publicly tied to the affordability debate over AI/data-center power costs in broader midterm coverage (Chicago Tribune).
IIIMoratorium · Ban Status
No statewide moratorium or ban has been enacted in Illinois as of May 2026. Instead, lawmakers are pursuing transparency and cost-allocation rules through pending bills such as SB2181 (data-center energy and water reporting; still in committee as of the latest action) (Illinois General Assembly) and broader “POWER Act” legislation cited in 2026 policy coverage as before the Senate AI and Social Media Subcommittee (ArentFox Schiff). At the local level, Aurora adopted a temporary 180-day pause on new data center and warehouse approvals to write new rules, and Yorkville has effectively slowed approvals with repeated commission/council scrutiny, but no Illinois locality has imposed a permanent statewide-significance ban (Chicago Tribune, Chicago Tribune).
IVRatepayer · Cost-Shift Legislation
Illinois has active cost-allocation legislation and adjacent proposals aimed at keeping grid-upgrade costs off residential ratepayers. SB2181 would require annual energy/water reporting and a study on impacts to rate-paying customers, but it is still moving through committee (Illinois General Assembly). 2026 policy reporting also identifies the “Protecting Our Water, Energy, and Ratepayers (POWER) Act” (IL S.B. 4016 / H.B. 5513) as the main comprehensive effort: it would require hyperscale data centers over 50 MW to pay for their own generation, transmission, and distribution buildout, while tightening water and environmental review and community-benefit conditions; it remained in committee as of April 2026 (ArentFox Schiff). Related legislative pressure is also reflected in an Illinois House resolution urging data centers to bear their own energy load and noting that 2025 Illinois data centers had more than 1,200 MW of operational capacity and that ComEd had received 75 project applications (Illinois General Assembly).
VBallot Measures
None identified.
VITop Contested Sites
Project Cardinal, Yorkville — roughly 1,000 acres proposed by Pioneer Development/landowners; advanced through local review in 2025 but remains highly contested by residents and subject to ongoing council scrutiny in 2026 (Chicago Tribune, Chicago Tribune). Project Steel, Yorkville — separate, smaller adjacent proposal by/with CyrusOne involvement in the same corridor; still under review and tied to the city’s cumulative-noise and infrastructure scrutiny (Chicago Tribune). Karis Critical Member data center, Naperville — 36 MW project on former Alcatel-Lucent land; repeatedly delayed amid strong neighborhood opposition and noise/capacity concerns (Chicago Tribune).
VIIActive Opposition Organizations
Illinois Clean Jobs Coalition (ArentFox Schiff), Natural Resources Defense Council (ArentFox Schiff), Union of Concerned Scientists (ArentFox Schiff), Yorkville resident opposition groups cited in local hearings (Chicago Tribune), Naperville neighborhood opponents and petition organizers (Chicago Tribune).
VIIITalent · Workforce
Inclusion criteria satisfied: Construction labor. Chicago metro data center labor council positions; downstate buildouts. Primary-source verification pending — full content in v1.2. Sub-state and labor-market analysis available in the full RAIL briefing.
IXData Center Cluster Size
Major hub. Illinois already had more than 1,200 MW of operational data center capacity in 2025, and ComEd had received 75 project applications; Yorkville, Aurora, Naperville, and the Chicago metro remain focal points (Illinois General Assembly).
XKey Quote
"In 2025, data centers in Illinois had more than 1,200 MW of operational capacity; recently, Commonwealth Edison has received 75 application for data center projects" (Illinois General Assembly).