Utility Hydroelectric Generation by Size and County: 2022

Energy generation data and map are from the California Energy Commission for all power plants that have a nameplate capacity of 1MW or more. Small hydroelectric plants are designated as a renewable energy source if their nameplate capacity is more than 30MW, it is classified as a large hydroelectric plant. Counties without symbols either did not report data or had no utility-scale hydroelectric power generation. Data is from 2022 and is current as of July 10, 2023.