An underwater turbine that is set to be used in the world's first tidal farm near Islay has successfully completed initial tests in hostile waters off Orkney.
Scottish Power Renewables fitted their 100-foot long device at the end of last year and it's already powering the Orkney Island of Eday.
Scotland Tonight looked at the experimantal development, and spoke to Alan Mortimer, the Head of Innovation at Scottish Power Renewables.
More About Scotland Tonight
- Murphy: Decisions on Scottish Labour will be made in Scotland
- Scotland Tonight: Spotlight on the career of comic actor Tony Roper
- Lothians MSP Sarah Boyack announces bid to lead Scottish Labour
- Brown 'won't enter the race to be the next Scottish Labour leader'
- Watch a live stream of Scotland Tonight: Scotland's current affairs show
- Photobomb named word of year as dictionary adds 50,000 words
- Scotland Tonight: Author and activist Owen Jones on his new book
People who read this story also read
- 73-year-old drove onto crossing as 90mph Glasgow-bound train approached
- Sheriff gives predatory scoutmaster heavy fine instead of 'soft' jail term
- Woman dies after suffering head injury during fall at night club
- Lib Dems claim SNP group too 'unstable' for council coalition
- Jealous boyfriend tried to kill suspected love rival with a sword