Osbit Ltd, the Northumberland-based offshore engineering and technology company, has successfully delivered an innovative hybrid monopile cleaning tool to Van Oord, designed to support the efficient installation of offshore wind turbine foundations.
The Hybrid Marine Growth Cleaning Tool is currently supporting a project at the Walney 3 & 4 offshore wind farm in the Irish Sea, where Van Oord is charged with installing 87 monopiles for DONG Energy. The system has been delivered to a strict 12-week schedule, to ensure the installation programme can begin on time.
The tool is unique in its nature, offering combined monopile cleaning, anode cage lifting andinstallation down to 30m water depth, along with monopile survey and measurement capabilities, supporting Van Oord’s commitment to improving the efficiency of pile installation operations.
To ensure the monopiles are sufficiently prepared for grouting and the installation of the transition pieces, Osbit’s tool utilises a suite of 10 rotating cleaning headsto prepare the monopile surface to fit the transition piece. The system’s cleaning heads are adaptable, to enable effective cleaning of the tapered monopiles, which have an increasing diameter of six to eight metres.
Previously, each of these tasks would require the use of individual systems, which would increase the duration and complexity of the installation programme.
Osbit’s system was designed in collaboration with Van Oord, at its offices in Riding Mill, Northumberland and manufactured in the North East of England with the support of its experienced local supply chain.
Brendon Hayward, Managing Director of Osbit Ltd, said: “Working closely with Van Oord, we have developed an innovation to deliver new levels of operational efficiency for offshore wind foundation installations. Its hybrid capabilities combine three systems, to significantly cut installation timescales and deliver cost-savings, key targets for the industry, particularly in the current climate.”
He added: “Our engineers applied their expertise in the subsea and renewables sectors to devise a solution that not only meets operational requirements, but was delivered to an accelerated design and build schedule to enable it to be deployed on the Walney project.”
Adriaan van Oord, Operations Manager from Van Oord Offshore Wind B.V, said: “We are committed to creating ingenious solutions to improve operational efficiencies in the offshore wind sector; in this project, Osbit has succeeded in developing an innovative system moulded to suit our operational requirements, which has been delivered within a challenging time-scale.”