Illinois Enacts Energy Reform Affecting Data Center Backup Generators

January 31, 2026

On January 8, 2026, Illinois enacted the Clean and Reliable Grid Affordability Act, a sweeping energy reform measure aimed at strengthening the state’s power grid and addressing projected energy shortages. Among the law’s key provisions are new air regulations for backup generators at data centers, requiring diesel-powered units to meet EPA Tier 4 emissions standards, according […]