San Jose Unveils Data Center Rules — Sound Barriers, Clean Power, 1,500-Foot Notices
San Jose has released draft standards for large data centers that would require measures including sound barriers, 100% clean power for facilities using at least 20 megawatts, restrictions on drinking-water use for open cooling, and notices to residents within 1,500 feet. The proposal responds to South San Jose residents’ complaints about noise and lighting and is scheduled for public meetings and future Planning Commission and City Council votes.
San Jose officials have proposed the city’s first uniform standards for large data centers and other high-demand technology facilities. The draft would require facilities drawing at least 20 megawatts to use 100% clean power, prohibit drinking water in open cooling systems, limit backup-generator testing, install noise and lighting controls, monitor power, water and sewer use, and notify residents within 1,500 feet of proposed sites.
The rules follow complaints from South San Jose residents about persistent equipment noise and bright lighting from nearby operating facilities. Mayor Matt Mahan and Councilmembers Pamela Campos, David Cohen, Peter Ortiz and Domingo Candelas support developing the standards, while city planning official Manuel Pineda said public feedback highlighted noise and sewer concerns. The proposal is not yet final; a community forum, Planning Commission review and two City Council votes are planned before adoption, with the city also considering fees for affordable housing and grid improvements.