Constellation Byron nuclear plant data center site

Illinois state legislation

• ApprovalICC Docket Nos. 25-0677/25-0679 (Consolidated) - ComEd Large Demand Project Applicant/Customer (LDPAC) Tarifficc.illinois.govDownloadComEd tariff creating a formal "Large Demand Project Applicant/Customer" class for data centers/large loads ≥50MW, approved March 2026 with graduated security deposits ($1M for 50-200MW, +$500k per additional 100MW). Cites 75+ pending large-load interconnection requests totaling 28,000+MW, exceeding ComEd's all-time system peak.
• Community benefits agreementProject Vector Annexation and Development Agreementfas.orgDownloadAnnexation and development agreement setting terms for the 'Project Vector' data center development in DeKalb, Illinois.
• LegislationHB2756 - Data Center Cost-Shifting Protection Actdatacenterbans.comDownloadProtects ratepayers from cost-shifting caused by data centers.
• LegislationSB2181 - Illinois Data Center Energy and Water Reporting Actdatacenterbans.comDownloadRequires all data centers to annually report energy and water consumption beginning January 1, 2026.
• LegislationSB58 - Sales and Use Tax Law exemption for certified data center facilitiesdatacenterbans.comDownloadCreates sales/use tax exemptions for certified data center facilities.
• LegislationSB57 - Large-Load Data Centersdatacenterbans.comDownloadRegulates large-load data centers.
• LegislationHB2026 - Data center industrial zoning ordinance review requirementdatacenterbans.comDownloadRequires localities to review and amend zoning ordinances for data centers under industrial zoning rules.
• MoratoriumHB1301 - Limits data center electricity cost risk and imposes moratoriumdatacenterbans.comDownloadLimits costs/risks associated with data center electricity use and imposes a moratorium.
• OrdinanceData Center Zoning Ordinancewandtv.comDownloadLogan County, Illinois zoning ordinance for data centers, approved by the board June 1, 2026.
• LegislationSB4206 - LOC GOVT-DATA CENTERlegiscan.comIn committee May 18, 2026DownloadDescription coming
• LegislationHB5755 - MUNI CD-DATA CENTER REFERENDUMlegiscan.comIn committee May 5, 2026DownloadDescription coming
• LegislationSB4016 - HYPERSCALE DATA CENTERSlegiscan.comAdded as Co-Sponsor Sen. Karina Villa May 30, 2026DownloadDescription coming
• LegislationSB3761 - DATA CENTERS-VARIOUSlegiscan.comIn committee May 22, 2026DownloadDescription coming
• LegislationSB0094 - DATA CENTERS-FOREIGN OWNERSHIPlegiscan.comAdded as Co-Sponsor Sen. Terri Bryant Apr 3, 2025DownloadDescription coming
• LegislationSB3830 - DATA CENTERS-VARIOUSlegiscan.comIn committee May 22, 2026DownloadDescription coming
• LegislationSB3578 - DATA CENTERS-FOREIGN OWNERSHIPlegiscan.comAdded as Co-Sponsor Sen. Darby A. Hills Jul 1, 2026DownloadDescription coming
• LegislationHB5513 - HYPERSCALE DATA CENTERSlegiscan.comAdded Co-Sponsor Rep. Suzanne M. Ness Aug 26, 2026DownloadDescription coming
• LegislationSB4203 - DCEO-DATA CENTERSlegiscan.comAdded as Co-Sponsor Sen. Erica Harriss Jun 17, 2026DownloadDescription coming