Illinois: The POWER Act (SB 4016/HB 5513), sponsored by Rep. Robyn Gabel (Evanston) and Sen. Ram Villivalam, establishes comprehensive statewide standards for data center development including clean energy procurement requirements, utility cost responsibility, water use reporting, pollution controls, and community engagement. Requires data centers to submit clean energy supply plans and establishes new rate tariffs for hyperscale data centers. Governor Pritzker supports. On April 22, 2026, the Illinois House Executive Committee, chaired by Rep. Ann Williams (D-Chicago), held the third of three subject-matter hearings on data centers, focused on data center water use. The April 15 hearing addressed energy use; the April 9 hearing covered general impacts. Polling shows 70% of Illinois residents support the POWER Act, which would also mandate disclosure of community benefit agreements, water efficiency standards, Illinois State Water Survey review, and an industry-funded ratepayer affordability fund. VERIFIED 2026-05-26: The POWER Act (SB 4016) was re-referred to Senate Assignments May 22, 2026 with no floor vote; advocates accused Gov. Pritzker of "lack of engagement." Dead with the session ending May 31.