A community-owned tidal power scheme has started exporting electricity to the local grid in Shetland.
Scottish energy minister Fergus Ewing said the single turbine would power up to 30 homes, an ice plant and an industrial estate.
It sits on the seabed, more than 30m below the surface, and drives a generator when it is spun by the tide.
Leith-based tidal energy firm Nova Innovation developed the scheme in partnership with North Yell Development Council and with the help of government funding.
Ewing said: “For the first time, anywhere in the world, a community-owned tidal turbine is generating electricity. It will have a positive impact on the North Yell community and economy.
“Scotland is recognised as world leader in wave and tidal energy, with a quarter of Europe’s tidal stream and a 10th of its wave-energy potential.
“We must tackle climate change and reduce our reliance on fossil fuels through better and more efficient uses of energy. That is why Scotland generated a record amount of electricity from green energy sources last year.”