Sembcorp Marine has completed the fabrication of two topsides for Orsted’s Hornsea Two offshore wind farm.
The offshore substation (OSS) and reactive compensation station (RCS) sailed away from Singapore destined for the North Sea over the weekend.
Sembcorp Marine said the delivery of the substations “expands its footprint” in the renewables and clean energy sector, as well as highlighting its diversification endeavours.
Located in the North Sea, some 55 miles off the Yorkshire Coast, Hornsea Two spans an offshore area of 462 km2 and will be the world’s largest wind farm when it goes live in 2022.
With an installed capacity of 1.4 gigawatts, the development will supply green energy to more than 1.3 million homes in the United Kingdom.
Constructed at Sembcorp Marine’s integrated facilities in Singapore, the OSS is the largest AC offshore substation, the company said.
The two substations, which are due to reach their destination at the end of next month, have a combined weight of 10,200 tonnes.
Installation of the OSS and RCS jacket foundations was completed in October 2020 by Hereema’s Sleipnir, the world’s strongest semi-submersible crane vessel, also built by Sembcorp Marine.
In addition to fabrication, Sembcorp Marine spearheaded the engineering, procurement, hook-up and commissioning works for the topsides.
Sembcorp Marine head of offshore platforms, Samuel Wong, said: “We thank Ørsted Wind Power and Optimus Wind for their trust in Sembcorp Marine’s capability to deliver these functional engineering solutions to their desired quality.
“These Substations, along with the OSS and RCS jacket foundations that were delivered by Sembcorp Marine in August 2020, demonstrate the Group’s commitment to meet the challenge of delivering these structures safely amid this pandemic.”
Patrick Harnett, senior programme director for Orsted, said, “With plans to have the wind farm operational in 2022, this is a very exciting milestone for Hornsea Two.
“In 2019, Ørsted opened the UK’s largest operations base for offshore wind at Grimsby’s Royal Dock, providing a total of 400 jobs for local people.
“Hornsea Two will be maintained and operated from this base, creating a long-term operations hubs, meaning Ørsted will provide careers for years to come – offshore wind farms last at least 25 years.”
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