Marine and Hydrokinetic Technology Resources
Tethys Environmental Impacts Knowledge Management System
The U.S. Department of Energy partnered with the International Energy Agency's Ocean Energy Systems initiative to create Tethys, a database and knowledge management system that provides access to information and research about the potential environmental effects of offshore wind and marine and hydrokinetic development.
Tethys also hosts data from Annex IV, an international collaboration to gather information on MHK environmental research worldwide.
Learn where marine and hydrokinetic technology research and testing is being done across the country. Learn more from the Water Power Program's project database:
Marine and Hydrokinetic Technology Database 
The Marine and Hydrokinetic Technology Database provides information on marine and hydrokinetic renewable energy projects, both in the United States and around the world.
Hydrodynamic Testing Facilities Database
The Hydrodynamic Testing Facilities Database provides data on a range of test capabilities and services available at commercial, academic, and government facilities and offshore berths within the United States.
Marine and Hydrokinetic Glossary
A glossary of key terms about marine and hydrokinetic technologies.