World’s Largest Monopile Factory Gets Planning Approval

SeAH Wind Ltd, a subsidiary of South Korean pipe manufacturer SeAH Steel Holdings, has received planning approval for its planned £300m UK XXL monopile plant to be built at Teesworks.

Work on the site is expected to begin in July with overall completion expected in 2024.

The 40m high and over 800m long building, part of the Teesside Freeport, will be situated on a 90 acre site and provide 1.13 million square feet of factory space for the production of monopiles up to 120 meters in length, 15.5 meters in diameter and weighing approximately 3,000 tons.

Once fully operational, the facility, which will become SeAH Wind’s first such resource outside of South Korea, is expected to produce between 100 and 150 monopiles per year which will be transported directly from the factory to the new South Bank dock. Teesworks Quay, worth £107million. before heading to the North Sea for installation using specialist pile driving equipment.

SeAH Wind Ltd recently changed the location where the monopile plant will be built from Able Marine Energy Park (AMEP) on the south bank of the Humber to Teesworks. The reasons were not disclosed.

The factory, which Teesworks says is the largest of its kind in the world, will have a 93,324 square meter main monopile manufacturing building, a 3,873 square meter administrative office, a maintenance station , a paint facility and site-specific power stations, as well as a range of staff welfare facilities designed by Ashton Smith Associates.

“Ashton Smith Associates’ design directly addresses the challenges of creating space with optimum capacity for monopile construction, and the layout has been carefully developed to achieve a configuration that meets SeAH Wind’s operational requirements, ensuring that every space is efficiently and safely interconnected, with all disciplines operating under one roof,” said Teesworks.

K2 Consultancy, the project manager, construction manager and cost consultant for the project, engaged with a multi-disciplinary team including Ashton Smith Associates acting as architects, as well as Clarkebond as engineers civil, structural and geo-environmental, and engineering construction services, Waterman Group.

According to Teesworks, the plant will create 1,500 jobs in the supply chain and during construction, with an additional 750 jobs once the plant is fully operational in 2026.

In November 2021, Ørsted announced a multi-million pound deal to be the first and largest customer for monopile foundations manufactured at SeAH Wind Limited’s planned UK plant.

The deal, subject to obtaining a contract for difference and a final investment decision (FID) for the 2.4GW Hornsea Three offshore wind farm, will include the first-ever UK-produced monopiles. United.

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