Chicago Introduces Moratorium to Halt Data Centers as AI Grid Costs Hit Residential Bills

Chicago Mayor Brandon Johnson formally introduced a one-year moratorium ordinance on new data center construction to the City Council, citing sharply rising electricity bills for residents. The proposal, co-introduced by Aldermen Maria Hadden, Lamont Robinson, and Leni Manaa-Hoppenworth, would halt permits for new facilities and bar major expansion of existing ones while the city develops a long-term regulatory framework.

This legislative step follows an executive order and comes as Illinois consumers face significantly higher electricity costs, with the capacity portion of typical ComEd bills surging 775 percent in a single year due to data center demand. Consumer groups, like the Citizens Utility Board, warn of potential $70 monthly bill hikes if unchecked data center growth continues. The city's chief sustainability officer is also tasked with publishing new air and noise pollution standards.

While the moratorium has political momentum, it faces opposition from some aldermen and the data center industry, which highlights the economic benefits of these facilities. This local action by Chicago mirrors similar efforts in other states like New York and Texas, and follows stalled federal legislation (Ratepayer Protection Act and GRID Savings Act) aimed at making large-load customers pay for grid upgrades. The Chicago Data Center Task Force is expected to deliver regulatory recommendations by March 2027.