As Sonoma Water developed renewable and other carbon-free energy sources, the utility learned what does and doesn’t work in the wine country north of San Francisco.
The Sonoma County Water Agency treats wastewater for more than 75,000 people with eight sanitation zones and districts, including seven small plants, and is a water wholesaler to water retailers serving more than 600,000 people. It achieved its goal of using entirely carbon-free energy sources in 2014.
Dale Roberts, principal engineer, says the agency has numerous renewable energy projects and another one in development, but not all have been successful. A geothermal project, for example,
