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.

Wind turbines and solar panels will undoubtedly play the central role. But both depend on the weather: wind turbines stand ...

Tides are predictable years in advance, unlike wind or sunlight. Because of this reliability, harnessing the energy of ocean tides has long appealed to engineers. The difficulty lies in building ...

Lance McMullan tests an early prototype of his tidal generator in Juneau in October 2023. (Photo by Anna Canny/KTOO) Inventor Lance McMullan has a beautiful house on Douglas Island. But he spends ...

Plans for a tidal lagoon in Swansea Bay have taken a step forward following an agreement between Swansea Council and Batri Ltd ...

Marine energy is renewable and generally predictable. It could thus compensate for the unplanned intermittency of solar and ...