Datasets

This dataset provides a comprehensive inventory of environmental mitigation measures required by Federal Energy Regulatory Commission (FERC) licensed hydropower facilities from 461 licenses that were issued from 1998 to 2023. These licenses constitute 446 of the 1015 FERC projects that were active at the end of 2023. 17,612 mentions of environmental mitigations were identified and […]

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 […]

The U.S. Hydropower Development Pipeline database is a snapshot as of December 31, 2024 of locations and key characteristics of U.S. hydropower projects that are in the permitting/licensing/exemption phase and yet to be operational. The dataset has been updated on July 2nd, 2025 to add Seminoe PSH and Scott’s Dam HY projects for pending licenses; […]

This dataset has a new version at https://hydrosource.ornl.gov/data/datasets/rectifhydplus_v1-1/ The files included in this page are as follows: RectifHydPlus.zip: contains the main RectifHydPlus dataset, containing monthly generating totals for 590 plants (> 10MW) over the forty-year period 1980 – 2019. Three versions are offered: 1. Estimated historical monthly generation, backfilled with EIA observed monthly generation where […]