A tidal turbine off the coast of Orkney has produced more energy in a year than the rest of Scotland's wave and tidal sector combined.

The SR2000 supplied enough electricity to meet the demands of more than 800 homes in its first 12 months.

It is the most powerful turbine of its kind in the world and has been described as a "milestone" for the industry.

Andrew Scott, chief executive of SR2000 developers the ScotRenewables Trust, 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."

Hanna Smith, senior policy manager at industry body Scottish Renewables, said Scotland is "front and centre" of the marine energy sector.

"This milestone for the tidal energy industry truly demonstrates the untapped potential of this emerging sector," she added.

"Scotland's remarkable marine energy resource has placed us front and centre in developing this industry with global potential."