Sunnyvale has no cryptocurrency-mining ordinance. A commercial mining facility is treated like any data center - sited in the M-S or M-3 industrial districts as a light-manufacturing or office use, and bound by the Sec. 19.42.030 noise limits. Home mining is ordinary residential use.
Sunnyvale's Municipal Code contains no crypto-mining, bitcoin, or blockchain use category and no energy cap targeting mining. A warehouse of mining rigs draws power and produces heat and noise like a data center, so it is classified into the nearest use in Table 19.22.030 and located in the M-S or M-3 industrial districts - permitted by right up to 35% floor-area ratio, or by discretionary Use Permit with CEQA above it. Continuous cooling noise must stay within Sec. 19.42.030: up to 75 dBA daytime on industrial land, and 50 dBA nighttime where it reaches homes. Home-based mining is ordinary residential use, subject to the same property-line noise limits.
There are no crypto-specific penalties. A commercial mining operation outside an industrial district, or without a required Use Permit, is a zoning violation; noise over the Sec. 19.42.030 limits is enforced by the City.
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