A U.S. state just banned big AI data centers. Here’s why it might not be the last

Maine's Legislature has passed a bill, sponsored by state Rep. Melanie Sachs, that would implement a statewide temporary ban on large data centers until November 2027. The measure, which applies to facilities drawing over 20 megawatts of power, aims to give the state time to assess the significant environmental and energy grid impacts of these "power-guzzling tech complexes." Rep. Sachs emphasized that the bill positions Maine to respond "deliberately and responsibly" to the rapidly evolving data center industry, addressing concerns from communities across the state regarding potential impacts on ratepayers and the electric grid. Although Maine currently hosts no large-scale data centers, several proposals were reportedly in the works. The legislation has cleared both the House and Senate, receiving bipartisan support, and now proceeds to Governor Janet Mills for her signature. Governor Mills has not yet indicated whether she will sign the bill. If signed, the bill would also establish a state council to coordinate input and planning for future data center projects.