Hayward City Council Enacts 45-Day Moratorium on New AI Data Centers Over Grid and Water Concerns

The Hayward City Council voted on Wednesday to enact a 45-day interim urgency moratorium halting the approval of new artificial intelligence data centers across the city's industrial zoning districts. Passed at Hayward City Hall on B Street, the temporary pause directs municipal planning, utilities, and environmental services staff to establish comprehensive zoning safeguards addressing high-voltage electrical demand, evaporative cooling water usage, and low-frequency acoustic emissions from diesel backup generators.

City planners reported a sharp increase in pre-application inquiries from hyperscale compute developers seeking parcels along the Clawiter Road and Arden Road industrial corridor near the San Mateo-Hayward Bridge approach. Unlike traditional light-industrial warehouses, modern AI training clusters require between 30 and 100 megawatts of continuous power per campus, raising concerns that uncoordinated connections could delay distribution upgrades needed for residential electrification and advanced manufacturing.

Hayward's urgency ordinance places the East Bay municipality alongside a growing coalition of Northern California cities re-evaluating high-density server facilities. Earlier this week, the Pittsburg City Council scheduled a parallel 45-day moratorium review for later phases of its industrial data center campus, while the City of Richmond recently extended its own municipal data center moratorium for more than twenty-two months.

During the initial 45-day review window, Hayward engineering staff will consult with Pacific Gas and Electric transmission planners and the San Francisco Public Utilities Commission regarding regional water supply thresholds. A formal status report and proposed permanent conditional-use permit criteria will be presented to the Hayward Planning Commission and City Council in late November, with agenda packets posted at hayward-ca.gov.