The U.S. hydropower fleet has been an important source of flexible, low-cost, and reliable renewable energy for more than 100 years. No document existed that comprehensively summarized the current status of hydropower in the United States, so DOE commissioned Oak Ridge National Laboratory (ORNL) to write the first-ever Hydropower Market Report in 2014. The report provides industry and policy makers with a quantitative baseline on the distribution, capabilities, and status of hydropower in the United States.” – DOE Water Power Technologies Office

Since then, ORNL has released the 2015 and 2016 Updates which provided updated values for installed capacity, generation, hydropower rehabilitation and upgrade expenditures, hydropower and pumped storage hydropower project development pipeline, and hydraulic turbine imports and exports.

In April of 2018, DOE published the 2017 Hydropower Market Report providing industry, policy makers, and other interested stakeholders with updated information on all the topics covered in the first version of the full report as well as coverage of some new topics: international hydropower development trends, U.S. hydropower price and O&M cost trends.

The 2018 Update was published in April of 2019. Along with the slide deck and associated public data, ORNL has released the U.S. Hydropower Development Pipeline Database that is a snapshot of proposed hydropower facilities in the United States that have submitted applications for permitting from FERC or Bureau of Reclamation and tracked all the way up until construction (see the Existing Hydropower Assets page for operational facilities). ORNL has also published the U.S. Hydropower Retired Plant Database that aims to track once operational plants that are no longer producing power and may or may not have surrendered their license or decommissioned the facility.