Seattle has enacted a one-year moratorium on new datacenters, making it the largest U.S. city to do so as the backlash against AI infrastructure grows across the country. The city council voted unanimously in favor of the ban. The Guardian reports: Lawmakers have framed the pause as an opportunity to draft regulations specifically targeting the electricity-hungry datacenters being built nationwide to serve the AI sector, and to protect local residents from environmental risks and rising electricity bills. According to Seattle mayor Katie Wilson, the moratorium will also let city officials determine whether datacenters are a "good use of urban land," and potentially impose new stipulations on their approval, such as requiring developers to invest in local transit and housing initiatives in exchange for construction permits. "There are times when public pressure forces elected officials to do something they don't want to do, but in other cases, public pressure just supports and helps to spur on elected officials to do things that they already want to do," said Wilson. "I think this was one of those latter cases." [...]

An amendment to the moratorium that passed unanimously last week allows existing datacenters in Seattle to apply for expansions requiring up to 20 megawatts of additional power during the year-long pause. Activists are concerned that the provision may lead to a spike in datacenters' demand for power while the moratorium is in place, and may undermine the premise of the pause. Lawmakers justified the amendment as a way to differentiate between the datacenters that already exist in Seattle and serve a civic purpose, like those powering health facilities and emergency-call systems, from large-scale centers designed to serve the AI sector.

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