First substation now 'in situ' on world's biggest wind farm

By Grimsby Telegraph | Posted: 26 Apr 2018

The first Hornsea Project One substation topside, Z12, has been installed.

Located 120km off the Yorkshire coast, it will be a vital part of the biggest wind farm in the world when it is completed in 2020. It weighs 2,800 tonnes.

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The Z12 offshore substation is one of three which will collect the electricity from the turbines, and transform it to a higher voltage so it can be exported to shore with fewer losses. Due to the unprecedented cable lengths from being located so far offshore, a reactive compensation station will also be installed between the wind farm and the landfall; a first for an offshore wind farm.

The offshore substation topsides have been manufactured by Bladt Industries, and installed by Semco Maritime, now based in Grimsby close of Orsted's East Coast Hub, using the Saipem 7000 vessel. 

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It will be commissioned by a team out of the port, with accommodation jack-up vessels sitting alongside to provide an in-field base for hundreds of engineers as the project installation ramps up over the summer and turbines are added.

It comes as Offshore Wind Connections 2018 takes place in Hull, with key figures from the project in attendance, and due to speak..  

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Landfall is at Horseshoe Point on the Lincolnshire coast, with onshore cabling skirting North East Lincolnshire to North Killingholme, where a £25 million substation investment will connect to the grid.

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