The remote inspection and asset management of offshore wind farms and their connection to shore, is an industry which will be worth up to £2 billion annually by 2025 in the UK alone. 80% to 90% of the cost of offshore Operation and Maintenance according to the Crown Estate is generated by access requirements: such as the need to get engineers and technicians to remote sites to evaluate a problem and decide what action to undertake. Such inspection takes place in a remote and hazardous environment and requires highly trained personnel, of which there is likely to be a shortage in coming years. This project will investigate the use of robotic systems for the inspection of offshore assets. A specific use case of the inspection of a live HVDC sub-station will be used to investigate autonomous mission planning and coordination of multiple robots operating in a dark, GPS denied environments.