Datasets

Existing Hydropower Asset (EHA) Annual Gross Generation is a geospatial point-level dataset containing annual gross generation over time (2003-2024) and key characteristics of operational U.S. pumped storage and hybrid plants with 1 megawatt or greater of nameplate capacity. EIA 923 and EHA are the primary sources of the derived data. Hydropower units are excluded. Existing Hydropower […]

The HydroFish dataset lists all existing hydropower plants (EHAs) and non-powered dams (NPDs;  0.001 MW potential nominal capacity), delineates the hydrologic sub-basins in which they are situated, and then lists all freshwater fish species reported to occur in those sub-basins. This dataset was compiled using the HydroBio dataset and contains 24 total variables that describe […]

U.S. Hydropower Relicensing and License Surrender Data and Metadata is a snapshot (as of June 9, 2025) of locations and key characteristics of U.S. hydropower projects that are in the relicensing or license surrender process. This dataset was updated on Aug13, 2025 by removing trailing white spaces to optimize download time.

This dataset provides a comprehensive inventory of environmental mitigation measures required by Federal Energy Regulatory Commission (FERC) licensed hydropower facilities from 497 licenses that were issued from 1998 to 2025. These licenses constitute 478 of the 1006 FERC projects that were active in September 2026 (when this dataset was last updated). 19,113 mentions of environmental […]

The Existing Hydropower Assets (EHA) Plant Database is a geospatially comprehensive point-level dataset containing locations and key characteristics of U.S. hydropower plants that are currently operational. The dataset has been updated on July 2nd, 2025 where EHA_ID hc0108_p01 was fixed and EHA_ID hc1175_p02 was added.

The Existing Hydropower Asset (EHA) Unit database is a geospatially comprehensive point-level dataset containing locations and key characteristics of U.S. hydropower plant’s turbine units that are currently operational. The dataset has been updated on July 2nd, 2025 where EHA_ID hc0108_p01 was fixed and EHA_ID hc1175_p02 was added.

US Hydropower Retired Facilities FY2024 database is a geospatially comprehensive point-level dataset containing locations and key characteristics of US hydropower plants that are currently retired.

This dataset summarizes existing and potential hydropower capacity and freshwater biodiversity at the sub-basin level throughout the conterminous United States (CONUS). It contains descriptive information regarding each sub-basin (e.g., 8-digit hydrologic unit code identifier, name, states, and size) along with sub-basin-level summaries of: 1) existing hydropower capacity (MW), 2) potential nominal non-powered dam (NPD) capacity […]

This dataset contains geo-referenced information on fish passage facility existence, type, and direction at hydropower developments across the conterminous United States (CONUS) presented in the ORNL Hydropower Fish Passage Webmap. It was developed through collaborative partnerships with fish passage engineers and biologists at both the US Fish and Wildlife Service (USFWS) and the National Marine […]