http://inhabitat.com/one-third-of-scotland-could-soon-be-powered-by-the-worlds-biggest-underwater-windmill-tidal-plant/
One-Third of Scotland Could Soon Be Powered by the World's Biggest Underwater "Windmill" Tidal Plant
In between the Scottish mainland and the Orkney Islands lies the
Pentland Firth, a turbulent sound with tides that can reach up to a
startling 18 miles per hour. That’s a lot of
untapped power.
MeyGen
is taking advantage of all that renewable energy with the installation
of the world’s largest tidal power plant, and if everything goes as
expected, the underwater windmills could eventually power a full third
of Scotland.
Daily tides in the Pentland Firth are about 11 miles per hour, which is ideal for a
tidal power plant,
but that same tidal activity makes installing massive turbines
difficult. Nonetheless, the new power station is expected to produce 398
megawatts of electricity every year. That would make it the biggest
tidal power plant, passing South Korea’s Sihwa Lake, which generates 254
megawatts each year.
Related: Scotland Approves Europe’s Largest Tidal Energy Project
The plan for building the plant involves dropping 61 turbines onto
the floor of the sea, where each one will be weighed in place by
concrete legs. Each turbine has rotary blades like a windmill, so to sea
life and any wayward divers, the plant will look like a giant undersea
wind farm. Though it isn’t the first time someone has used this
technology to generate power – there is, among others, one installation
in
New York City
– it is the first time anyone has attempted it at this scale. If it all
works, it could set the standard for arrays like this one.
