Lowestoft-based Pipeshield Internatonal Limited has mobilised the second phase scour protection for the East Anglia ONE oﬀshore wind farm. Phase 1 saw the manufacture and supply of 300+ fronded concrete mattresses. Fronds are a dense carpet of strands, like seaweed, woven together to create a system which slows down the sediment on the seabed, causing it to fall and create natural burial. The FCMs are of Pipeshield’s design and utilise its three-part frond system. A recyclable protective cover protects the system during storage and transportation. This is removed prior to installation. Once the mattress is in place on the seabed, a detachable safety net is pulled away releasing the frond system and starting the burial process. The FCM is fixed to one of Pipeshields 6m x 3m concrete bi-ﬂex mattresses with its patented nose to notch block design (N2 Edge). The company claims that this block design provides up to three times more edge stability compared to a standard block design. Mobilising from the Port of Great Yarmouth and using its patented high payload wet store bases, the mattresses were loaded in stacks of six mattresses, which Pipeshield claims cut loading time. The system also meant the fronded mattresses could be loaded horizontally without compromising the frond system, since lifting in any other way configuration cause damage to the system. In total, 34 wet store bases were provided on the project. The work follows the delivery of the first phase delivery of scour protection, which was manufactured and supplied at the end of 2018. ScottishPower Renewables’ East Anglia ONE offshore wind farm is scheduled to be fully commissioned in 2020 and is expected to meet the energy demands of 500,000 British households annually. The project will have a 714MW capacity and feature 102 Siemens Gamesa SWT-7.0-154 wind turbines. The £2.5bn wind farm is the first of four projects ScottishPower Renewables is developing in the East Anglia region to begin construction. For more information on offshore wind farms, click here.