World’s First Commercial-Scale Tidal Power System Feeds Electricity to the National Grid

The world’s first commercial-scale tidal turbine, located in Northern Ireland’s Strangford Lough and developed by British tidal energy company, Marine Current Turbines (MCT), has delivered electricity onto the grid for the first time.

The tidal current turbine, known as SeaGen, has briefly generated 150kW of power onto the grid as part of its commissioning work, ahead of it achieving full capacity in a few weeks time. SeaGen’s power is being intentionally constrained to 300kW during the commissioning phase, but once fully operational, it will generate 1.2MW of power, supplying clean and green electricity to the equivalent of 1000 homes.

“This is an important milestone for the company and indeed the development of the marine renewable energy sector as a whole. SeaGen, Marine Current Turbines, tidal power and the UK Government’s push for marine renewables all now have real momentum. The marine environment poses a number of unique technical challenges, not least installing SeaGen in an extremely aggressive tide race, so we are delighted that Marine Current Turbines has delivered yet another world-first in this sector. It’s a major technical break-through. Our engineering team have done a fantastic job.”
Martin Wright, Managing Director, Marine Current Turbines

"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. My department has supported SeaGen from the start, granting £5.2 million in funds to take it from the drawing board and into the waters of Strangford Lough. This, and our plans to double the financial support for marine technologies, is further evidence of our commitment to making the UK one of the most attractive places to invest in green energy."
John Hutton, Secretary of State for Energy

SeaGen was installed in Strangford Lough in May of this year and commissioning work has been taking place since then, including the vital grid connection undertaken in partnership with Northern Ireland Electricity.

SeaGen is the world’s first commercial-scale tidal stream generating system by a large margin. It is more than four times as powerful as any other tidal current system, including the 300kW SeaFlow, the world’s first offshore tidal device in 2003 installed off Lynmouth on the north Devon coast in 2003.

Marine Current Turbines expects that the present testing and commissioning phase will be completed by the end of the summer and an official “switch on” will take place. Irish energy company, ESB Independent Energy, is purchasing the power generated by SeaGen for its customers in Northern Ireland and the Irish Republic.

“We are on course to be the first company in Ireland and Britain to provide customers with electricity powered by tidal energy. This is a very significant breakthrough which underlines ESB Independent Energy’s ongoing commitment to providing our customers with a range of renewable energy options.”
Liam Molloy, ESB Independent Energy

Marine Current Turbines’ next project, announced in February 2008, is a joint initiative with npower renewables to take forward a 10.5MW project using several SeaGen devices off the coast of Anglesey, north Wales. It is hoped the tidal farm will be commissioned around 2011/2012.

The company is also investigating the potential for tidal energy schemes in other parts of the UK, and in North America.