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
- Scotland Tonight: How can we make the most of our sporting success?
- Scotland Tonight: Spotlight on new play The Trial of Jane Fonda
- Scotland Tonight: Should the Games be a politics-free zone?
- Campaign to engage 'missing million' in independence referendum
- Scotland Tonight: Jim Sillars on his vision for independent Scotland
- Let the Games begin: World watches Glasgow's 2014 Commonwealth show
- Nick Clegg speaks out against homophobia in Commonwealth countries
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