The start of construction of a £51M tidal mega scheme off the coast of Scotland is expected this year after funding was secured.
Renewable power provider Atlantis said it would begin building the MeyGen multi-turbine array in the final quarter of 2014.
It comes after terms were agreed for phase 1A of the scheme with a funding syndicate including the UK Government, Scottish Enterprise, Highlands & Islands Enterprise and the Crown Estate.
The UK Government has provided £10M worth of grant funding to the project, which will provide enough electricity to power 175,000 homes.
Energy secretary Ed Davey said: “Meygen will be the biggest tidal stream array in the world.
“Wave and tidal power have the potential to provide more than 20% of the UK’s electricity needs, and Meygen could pave the way for future projects in the Pentland Firth.”