Researchers have cataloged 426 potential tidal-stream turbine sites spread across 19 countries, quantifying a theoretical energy resource of 1,000 terawatt-hours per year from 262 of those locations.

While solar panels rely on sunshine and wind turbines depend on changing weather conditions, ...

DOE says the funding opportunity represents the "largest investment in tidal and river current energy technologies in the United States." Over the past few years a number of projects related to tidal ...