Hornsea One
Image credit: Orsted

Hornsea One claimed to be both the world’s biggest offshore wind farm, as well as the furthest located away from the shore, is installing its final turbine, nine months after the installation of the first, priming the facility’s full operations scheduled to commence in 2020.

The facility first became operational in June 2019, when 50 of the site’s 174 turbines were brought on line.

According to developer Ørsted each 7MW Siemens Gamesa turbine at the facility, located 120 kilometres off the coast of Yorkshire, will be able to power a UK home for more than a day with a single rotation, with the overall facility capable of powering a million UK homes.

Each turbine blades is 75 metres long and is handcrafted in Hull, where sets of three blades per turbine are selected for the closest match, thus avoiding any being out of balance. The project has a 25-year lifespan and is expected to remain in operation until 2045.

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“At the time of taking on the project, it’s scale and the technical pioneering required seemed a Herculean challenge but a truly extraordinary effort from all those involved have managed to make this impressive feat of engineering the new norm.

Duncan Clark, Ørsted Programme Director for Hornsea One added: “The milestone of this last turbine being installed only nine months after the first one was erected is just one small part of this record-breaking project. Hornsea One has truly paved the way for the next generation of offshore wind farms.

“We have benefitted from fantastic working relationships with contractors and suppliers, and that includes vessel providers who have maintained a constant stream of communication to ensure that turbine installation has been concluded on time and within budget.”