World-first autonomous subsea survey and inspection system

AVISIoN project has received funding from Innovate UK AVISIoN project has received funding from Innovate UK
Industry Database

A Darlington, UK-based subsea specialist is developing a docking system to enable autonomous underwater vehicles (AUVs) to remain at offshore wind farm sites without a support vessel. The company claims that the move could shave £1.1billion from the operating cost of Europe’s offshore wind farms and would be a world-first in the sector.

Modus Seabed Intervention, in partnership with Osbit Ltd and the Offshore Renewable Energy (ORE) Catapult, is currently trialling the AUV docking station. The design will enable vehicle re-charging, as well as the upload of acquired data and download of mission commands.

The use of AUVs to survey and inspect offshore wind farm subsea infrastructure is a relatively new cost-efficiency measure in this sector. Replacing support vessels with the AUV docking station could further reduce expenditure. In addition to the estimated £1.1billion saving across the current 11GW offshore wind farm fleet over the next 25 years, the scheme will also significantly reduce the need for staff to work in often hazardous environments.

“Since 2012, Modus has been focusing on the development of hybrid AUV systems to be deployed for subsea and seabed survey, and inspection,” said Managing Director of Modus and project lead Jake Tompkins. “Part of our vision is to see AUVs becoming field resident, offering significant cost savings and quality benefits to the markets and our customers.”

The Autonomous Vehicle for the Inspection of offshore wind farm Subsea INfrastructure (AVISIoN) project has received funding from Innovate UK. This will enable further development, testing and demonstrations of Modus’ existing Hybrid AUV capability, and docking station.

Testing will take place at ORE Catapult’s National Renewable Energy Centre in Blyth, Northumberland. The first phase will use saltwater testing docks and Catapult’s National Anemometry Hub. Offshore wind farm developers Innogy, EDF Energy and E.ON are also supporting the project, with Innogy agreeing to carry commercial trials at the Gwynt y Môr offshore wind farm.

Tariq Dawood, research engineer at the EDF Energy R&D UK Centre said: “EDF Energy strongly believes the AVISIoN project will likely lead to a complete rethink in the logistics for subsea surveys for future offshore wind farms.

“Through the EDF Energy R&D UK Centre, we are fully committed to participating in the AVISIoN project to ensure the benefits of a permanent offshore base station for an Automated Underwater Vehicle is realised in terms of improved health and safety and reduced Levelised Cost of Energy.”

By Jake Frith

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