A floating tidal stream turbine off the coast of Orkney has produced more green energy in a year than Scotland's entire wave and tidal sector produced in the 12 years before it came online. In 12 months of full-time operation, the SR2000 turbine supplied the equivalent annual power demand of about 830 households. It produced 3GWh of renewable electricity during its first year of testing. Over the 12 years before its launch ... wave and tidal energies across Scotland had collectively produced 2.983GWh. Andrew Scott, chief executive officer of developers Scotrenewables Tidal Power, said: The SR2000's phenomenal performance has set a new benchmark for the tidal industry. "Its first year of testing has delivered a performance level approaching that of widely deployed mature renewable technologies." He added: "The ability to easily access the SR2000 for routine maintenance has been a significant factor in our ability to generate electricity at such levels over the past 12 months, including over winter." The team ... said their success - combined with Meygen's generation of more than 8GWh over the past year from four tidal turbines deployed in the Pentland Firth - is evidence that tidal power generation could be rolled out more widely.