Submerged in about 40 meters (44 yards) of water off Scotland’s coast, a turbine has been spinning for more than six years to harness the power of ocean tides for electricity—a durability mark that ...

Submerged in about 40 meters (44 yards) of water off Scotland's coast, a turbine has been spinning for more than six years to harness the power of ocean tides for electricity — a durability mark that ...

Tidal power has always been one of those renewable energy ideas that sounds brilliant in theory—predictable, clean, and totally unaffected by weather. But the ocean is a tough place to build anything, ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. Submerged in about 40 meters (44 yards) of ...