LONDON - Time To ACT plc (AQSE:TTA) announced Friday that its subsidiary GreenSpur Wind Limited has entered into a design services contract with Severn Estuary Tidal Bar Ltd (SETB) to assess the ...

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 ...