Seattle Halts New Big AI Data Centers for a Year

Seattle's City Council has unanimously enacted a one-year moratorium on the construction of new large AI data centers. This decisive action, pending Mayor Katie Wilson's signature, stems from a recent report highlighting that proposed projects could consume up to a third of the city's electricity. Residents also voiced significant concerns regarding the substantial water usage and noise pollution associated with these facilities.

The moratorium specifically targets data centers with an energy demand exceeding 20 megavolt-amperes, a threshold capable of powering thousands of homes. This temporary ban may be extended for an additional six months. Concurrently, the council has mandated a comprehensive study to assess the full impact of AI data centers on Seattle's utilities, economy, and public health, paving the way for potential permanent regulations.

This move positions Seattle alongside other cities implementing similar restrictions on data center development. An amendment to the legislation differentiates between traditional data centers and AI "hyperscale" facilities. Public testimony revealed calls for renewable energy mandates and labor protections, urging a measured approach to the rapid expansion of compute capacity before comprehensive regulations are established.