First Commercial Tidal Power Generation In The UK  

Posted by Big Gav in ,

The Guardian reports that the MCT project at Strangford Lough in Northern Ireland has started commercial power generation - First tidal power turbine gets plugged in. More "Britain gets first taste of big tidal power".

An underwater turbine that generates electricity from tidal streams was plugged into the UK's national grid today. It marks the first time a commercial-scale underwater turbine has fed power into the network and the start of a new source of renewable energy for the UK.

Tidal streams are seen by many as a plentiful and predictable supply of clean energy. The most conservative estimates suggest there is at least five gigawatts of power in tidal flows around the country, but there could be as much as 15GW.

The trial at Strangford Lough, in Northern Ireland, uses a device called SeaGen and generates power at 150kW. However, engineers have plans to increase power to 300kW by the end of the summer. When it is eventually running at full power SeaGen will have an output of 1,200 kW, enough for about 1,000 homes.

SeaGen was designed and built by the Bristol-based tidal energy company Marine Current Turbines (MCT), which also installed the test device at Strangford in May.

"The best way to think of it is an underwater windmill," said Martin Wright, managing director of MCT. "There are big masses of water moving on the Earth's surface as a result of the gravitational attraction of the moon. Therefore you have streams occurring where you have accelerated flow."

Tidal generators harvest the energy of these moving streams with the added advantage that the resource is, unlike wind, predictable.

The secretary of state for business, John Hutton, said: "This kind of world-first technology and innovation is key to helping the UK reduce its dependency on fossil fuels and secure its future energy supplies. "Marine power has the potential to play an important role in helping us meet our challenging targets for a massive increase in the amount of energy generated from renewables."

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