Sacramento Municipal Utility District
（重定向自SMUD）
The Sacramento Municipal Utility District (SMUD) provides electricity to Sacramento County, California, and a small portion of adjacent Placer County. It is one of the ten largest publicly owned utilities in the United States, generating the bulk of its power through natural gas (estimated 56% of production total in 2009) and large hydroelectric generation plants (22% in 2009), and SMUD's green power (renewable) energy output was estimated as 19% in 2009.