But there are other types of hydropower that harness marine currents, tidal energy and wave energy, also referred to as marine current energy. Tidal stream turbines work much like submerged windmills, ...

The vertical rise and fall of the tides — driven by the gravitational forces of the moon and sun acting on the oceans’ waters — also causes motion of water called currents within bays, harbors and ...

A Swedish start-up company is generating electricity from low-velocity tidal currents with a system of underwater kites called "Deep Green." The kites are equipped with turbines tethered to the ocean ...

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 ...

Tide gates control water movement in rivers, which allows for more dry land and agriculture. But, these gates also obstruct the natural flow of water. Guillermo Giannico is a professor at Oregon State ...