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Dutch Plan Energy Island

Dutch Plan Energy Island

By Mark Steer

An innovative approach to offshore wind farms could provide a new way of producing sustainable, clean energy. Dutch engineers have designed the 'Energy Island', which acts a bit like a rechargeable wind-powered battery. The designs are still on the drawing board, but could this be the start of something big?

The island's design is reminiscent of an atoll, with an inner lagoon encircled by a ridge of land. Unlike an atoll, however, the island's ridge will play host to load of wind turbines which will act as an offshore wind farm, providing power to the shore. No surprises so far.

Click on the images to see an artist's impression of the island.
The clever bit comes with the use of the inner lagoon or lake. When there's a lot of wind producing surplus energy, the surplus will be used to pump water out of the lagoon and into the surrounding sea. When the wind dies down and there's a power deficit, water is allowed to rush back into the lake through generators. This way there should never be a lack of energy production from the island. (see a diagram)

The island is still only on the drawing board, but the brains behind the scheme, a company called KEMA, claim that one island could produce enough power to equal the output of three coal-fired power stations, with none of the CO2.

As well as producing power, the islands could act as a site for other activities such as chemical processing and liquid natural gas (LNG) terminals.

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Image:KEMA


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18 Mar 2010
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