Plans to generate electricity from the world's first series of tidal lagoons have been unveiled in the UK. The six lagoons - four in Wales and one each in Somerset and Cumbria - will capture incoming and outgoing tides behind giant sea walls, and use the weight of the water to power turbines. Read more
The UK is underestimating the amount of electricity that could be generated from tidal sources, new research says. The analysis says that estuary barrages and tidal streams could provide more than 20% of the nation's demand for electricity. Despite high costs, experts say tidal power is more reliable than wind. Read more
Major tidal energy scheme set for waters off Islay
A major tidal energy project is to be built in the Sound of Islay off the west coast of Scotland. The Scottish government is to approve plans for 10 tidal turbines, which will generate enough electricity to power more than 5,000 homes. Read more
A new company, Kepler Energy Limited, has been formed to develop a tidal turbine which has the potential to harness tidal energy more efficiently and cheaply, using a device which is simpler, more robust and more scaleable than current designs. The turbine is the result of research in Oxford University's Department of Engineering Science by Professor Guy Houlsby, Professor of Civil Engineering, Dr Malcolm McCulloch, head of the electrical power group, and Professor Martin Oldfield, Emeritus Professor of the thermofluids laboratory. Read more
What is thought to be the biggest tidal energy turbine in the world has been unveiled in the Scottish Highlands, ahead of testing off Orkney. Read more
One of the world's largest tidal energy projects has been unveiled off Orkney in a bid to help make Scotland "the energy powerhouse of Europe". First Minister Alex Salmond opened the new testing facility at the European Marine Energy Centre (Emec). The site will house energy converters, capable of generating electricity for thousands of homes.