Bladt, Semco in milestone wind farm contract

Bladt Industries and Semco Maritime are been awarded a contract to build three substations for the Hornsea Project One, described by its developer as the world's largest offshore wind farm.

It is the first time in Bladt Industries’ and their long-term partner Semco Maritime’s history that a contract has been signed for three substation topsides at the same time.

Bladt Industries is responsible for fabricating the steel structures of the substation topsides. The fabrication will take place in close cooperation with Semco Maritime who will be in charge of low voltage electrical works, including electrical and instrumentation, design, onshore construction and offshore commissioning. Each of the three substation topsides for the offshore wind farm will weigh about 2800-tonne and measure about 36x23x20m.

The Hornsea Project One Offshore Wind Farm will have a capacity of 1.2 GW in total, with 174 wind turbines and four substations. The offshore wind farm will be situated in the UK North Sea, 120km off the coast of Yorkshire.

Today,  DONG Energy announced it had awarded a multi-million pound contract to engineering support services company Babcock for the construction of a world first offshore reactive compensation station for Hornsea Project One.

The reactive compensation station, which will be constructed in Babcock’s Rosyth facilities, is a vital part of transmitting to shore the clean electricity produced by the offshore wind farm, enabling the high voltage AC system to work with cable lengths longer than those previously used for offshore wind. The reactive compensation station will be located between the offshore wind farm and shore.

The first phase of the project has already been initiated. According to plan, the first substation topside will be ready for delivery in spring 2018.

“We have been working in close cooperation with Semco Maritime on goal-oriented initiatives to bring down the costs of substations. With three substation topsides, we can continue this process and contribute with a further reduction of the long-term price per produced kWh from wind farms - also known as cost of energy (CoE),” says Jan Kjærsgaard, CEO, Bladt Industries.

Semco Maritime is a long term partner to Bladt Industries, and the cooperation has lasted for nearly 15 years and 16 substations – most recently on three separate ongoing EPCI contracted substations for three other wind farms, Sandbank, Nordsee One and Bligh Bank II, all to be delivered in 2016. 

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