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EEW to manufacture all Hornsea One monopiles

Posted by DONG Engery on


EEW Special Pipe Constructions GmbH (EEW) has been selected by DONG Energy to manufacture all 174 monopiles for the Hornsea Project One offshore wind farm.

Up until June 2017 it was anticipated that the site would feature 58 jacket foundations in addition to the 116 monopile foundations however, DONG Energy revised the decision which it claims "optimises the execution of the project, and helps ensure it will be built on time."

Claus Nørgaard, Engineering, Procurement and Construction Director for the project said: “Hornsea Project One will be the first wind farm in the world to have a capacity of more than 1GW and will provide enough energy for well over one million UK homes. Using the same foundation solution for all turbines means we benefit from economies of scale and experience, and therefore maximise efficient construction of the project. “

EEW and DONG Energy previously signed a contract for the production of 116 monopiles in November 2016, and with the new agreement in place EEW's work has been extended to cover all 174 foundations. Each monopile foundation has a diameter of up to 8.1m and weighs approximately 900 tons.

Michael Hof, COO/Managing Director at EEW SPC, said: “We are very pleased that DONG Energy placed their trust in EEW SPC again. This demonstrates the excellent relationship between our companies and we are looking forward to contributing in bringing this project to success.”

In early 2017 it was announced that 116 transition pieces would be provided by Bladt Industries, Offshore Structures Britain, Steelwind and Wilton Engineering. Work to fabricate the remaining transition pieces is yet to be awarded. When contacted DONG Energy confirmed discussions are ongoing.

The Hornsea Project One is scheduled to be operational in 2020. Onshore works began in 2016 and offshore construction will begin in late 2017. The wind farm is being built 120km east of the Humber Estuary and will cover an area of approximately 407km2. It will feature 174  Siemens' SWT-7.0-154 turbines which stand at 190m, larger than the Gherkin building in London.

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