6 key questions Madison planners face about regulating data centers
Madison is considering regulations that would cap new data centers at 100,000 square feet and ban larger hyperscale facilities, with buffer, noise and location requirements varying by size. The proposal is being developed as the city’s one-year construction moratorium approaches its Jan. 24 expiration, amid resident concerns about noise, water, electricity and AI-related demand.
Madison residents questioned city staff about proposed data center regulations intended to limit the size and impacts of new facilities. The draft framework would permit data centers in three size categories, impose stricter zoning and noise requirements as facilities grow, require buffers from homes and between larger facilities, and prohibit buildings larger than 100,000 square feet. City staff said the rules are intended to preserve smaller facilities serving hospitals, research centers and local businesses while preventing hyperscale development.
The proposal follows a one-year Madison moratorium that is scheduled to expire Jan. 24, as well as moratoriums in Dane County and Sun Prairie and public debate over data center projects elsewhere in Wisconsin. Officials cited concerns about electricity and water demand, noise and infrastructure impacts, while noting that state law limits local regulation of utility usage and that a total ban could face legal challenges. The Plan Commission and city committees are expected to review the framework before the City Council considers ordinance changes.