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Utility Hydroelectric Generation by Size and County: 2023

Published by California Energy Commission | State of California | Metadata Last Checked: July 28, 2025 | Last Modified: 2025-05-20T20:59:01.000Z
Energy generation data and map are from the California Energy Commissionfor all power plants that have a nameplate capacity of 1MW or more.Hydroelectric plants are designated as a renewable energy source if theirnameplate capacity is 30MW or less. Counties without symbols either did notreport data or had no utility-scale hydroelectric power generation. Data is from2023 and is current as of May 29, 2024. For more information, contact JohnHingtgen at (916) 510-9747 or Jessica Lin at (415) 990-8392.

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