What happens if you run an electric motor backwards? In short, it stops being a motor and becomes a generator. Following this principle, researchers at the University of Southampton have built a new ...

Computer simulation of Verdant Power's tidal turbines in action. (Note: video has no audio track.) Video courtesy of Verdant Power (1:00).

Tidal power is a fantastic source of clean, predictable energy – if you can harness it. It's proven immensely difficult due to a range of factors, but engineering giant SKF says it's making major ...

Scotland's Orbital Marine Power (formerly Scotrenewables) has completed the build on what it claims will be the world's most powerful operational tidal turbine. It's now on its way to the Orkney ...

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 ...