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Alpha Ventus, the first German offshore wind farm presents its results for 2012

News International-French

1 May 2013

The annual yield of Alpha Ventus exceeded expectations in 2012. During last year, Germany’s first offshore wind farm fed 267,8 gigawatt hours of power into the German power grid. At 15,3 per cent, the power yield is higher than the originally forecast value. The good yield trend also continued in the first quarter of 2013.

During 2012 the wind proved to be particularly steady for operators EWE, E.ON and Vattenfall. In contrast with 2011, which provided high yields during the winter months, the power yield in 2012 was distributed very evenly over the entire year. The positive trend in yield continued during Q1 2013. From January to March alpha ventus fed over 63 gigawatt hours into the transmission grid, almost as much as in the same period of 2012.

During operating year 2012 the twelve wind power turbines at alpha ventus achieved 4 463 full load hours, a value matching the level of operating year 2011. The wind farm’s availability during 2012 was an average of 96,5 per cent. DOTI is forecasting slightly reduced availability during 2013 because a number of service and maintenance measures are scheduled at the wind farm from May onwards. Alpha Ventus, Germany’s first offshore wind farm, started official operations in 2010, since when it has continuously fed climate-neutral power into Germany’s transmission grid.

Alpha Ventus
Alpha Ventus is the first German offshore wind farm to be constructed on the high seas. The pilot project is located some 45 kilometres from the coast of Borkum and provides fundamental experience in the construction and operation of an offshore wind farm. Twelve 5-megawatt class wind power turbines are operating at the alpha ventus test field: six AREVA Wind M5000 turbines and six REpower 5M turbines, resting on two different foundations. Whereas the AREVA wind turbines stand on tripods, the REpower turbines are mounted on jacket foundations. alpha ventus fed some 267 gigawatt hours into the grid during each of the years 2011 and 2012, sufficient to supply approximately 70 000 households.


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