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Equipment shortages and rising costs are stalling as much as $120 billion of offshore projects the European Union and other governments are counting on to reduce the use of fossil fuels and combat global warming. Royal Dutch Shell Plc on May 1 said it planned to sell its 33 percent stake in the London Array, the world's biggest sea-based wind park. ``It's been more difficult to build offshore projects than everyone thought,'' said Goeran Lundgren, head of Nordic power generation at Stockholm-based Vattenfall AB, which has put a 640- megawatt wind farm in the Baltic Sea on hold. ``I don't think we'll see any large-scale offshore parks until we've taken a few big development steps.''
London Array, proposed by Shell, E.ON and Dong Energy A/S in 2001, would be a collection of as many as 341 turbines 12 miles off the southeast coast of Britain. It would generate 1,000 megawatts of power, enough to supply a quarter of London's homes. Because they use wind -- not coal, oil or natural gas -- to generate electricity, such projects produce no carbon dioxide, the gas blamed for global warming. Building offshore provides access to more consistent winds and reduces objections from neighbors. The EU has set a goal of producing 4 percent of the region's electricity from sea-based installations by 2020.
``Offshore wind is going to be a hugely important part of our renewable energy policy,'' U.K. Energy Minister Malcolm Wicks said in an interview.
Shell's decision to sell its stake in London Array shows how difficult it will be to meet those goals. After the announcement on May 1, Skaerbaek, Denmark-based Dong Energy and Dusseldorf- based E.ON, Germany's biggest utility, said they may reduce the size of the project. ``Rising costs of materials,'' including steel and turbines ``are the reasons for reassessment of our position,'' said Shell spokeswoman Eurwen Thomas.
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