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.

The world’s coastlines are quietly holding one of the most disruptive energy shifts of the century. Tidal and wave technologies promise not just another clean power option, but a way to turn the ocean ...

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 ...

The oil shocks of the 1970s spurred marine energy innovation. Fifty years on, New Zealand still has vast untapped ocean power ...