Citation
Megan M. Johnson. 2025. Existing Hydropower Assets (EHA) Capacity Factor Plant Database, 2005-2024. HydroSource. Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA. DOI: 10.21951/EHA_CapacityFactor_FY2025/2570859
Overview
Existing Hydropower Asset (EHA) Annual Capacity Factor is a geospatial point-level dataset containing annual capacity factors over the years (2005-2024) and key characteristics of operational U.S. hydropower plants with 1 megawatt or greater of nameplate capacity. EIA form 860 and EHA are the primary sources of the derived data. Pumped storage and hybrid plants are excluded.
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Existing Hydropower Assets State-level Capacity and Generation Map
The interactive Existing Hydropower Assets State-level Capacity and Generation Map summarizes net electricity generation, generation capacity, and hydropower facility count by state and owner type from 2005-2024. Data is available for 1,213-1,385 US hydropower facilities varying by year. Generation data were obtained from the Existing Hydropower Assets (EHA) Net Generation Plant Database, 2003-2024 (Johnson, 2025) dataset which synthesizes data from US Energy Information Administration’s (EIA) Form EIA 923. Capacity data were obtained from Existing Hydropower Assets (EHA) Capacity Plant Database, 2005-2024 (Johnson, 2025) which synthesizes data from Form EIA 860. Pumped storage and hybrid plants are excluded.
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