I was very pleased to read that a so-called "wave farm" has been proposed for installation off Great Bernera, west of Lewis. A wave farm (terrible description) consists of several units of Pelamis, which convert the energy of wave action into electricity. How this works in practice, off Portugal, can be read here.
A tidal generator is to be built off Shader (Barvas), and should this new installation become reality, it would place the Western Isles at the forefront of renewable energy usage. Pelamis was designed in Scotland, trialed off Orkney and initially produced in the Arnish Fabrication Yard. I sincerely hope that any orders for Pelamis will be placed at Arnish, bearing in mind it is only some 30 miles from Great Bernera (by road). Whilst the Fabrication Yard has proven to be temperamental in terms of its viability, I support any projects that would put some sustainability in that plant's future. Should the Great Bernera project prove a success (and I think it will be), other wavepower projects may ensue elsewhere in Scotland or indeed the UK. From there on, the sea is the limit.