Reuters: The world’s first commercial-scale tidal power turbine has supplied the British grid with its first surge of tidal electricity, Marine Current Turbines (MCT) said on Thursday. The tidal current turbine, known as SeaGen, briefly generated 150 kilowatts of power off the coast of Northern Ireland as part of testing ahead of full commercial operations in a few weeks, the company behind the project said. SeaGen works like an underwater windmill, with the rotors driven by the power …