DEME Offshore has completed testing the use of drones for operations and maintenance (O&M) work at the Rentel offshore wind farm in the North Sea.
DEME Offshore and its partner Sabca performed a series of tests at Rentel, off Belgium, preparing for “autonomous surveillance, rescue and detection missions in the near future”.
The partners’ goal is to replace critical and ad hoc operations with autonomous aerial vehicles.
The pilot study represents the first commercial, cross-border, “beyond visual line of sight” (BVLOS) drone operations to take place at an offshore wind farm in the North Sea.
The partners performed a diverse range of tests on various use cases including search and rescue operations, environmental surveys, turbine and substation inspections, as well as parcel deliveries.
Both a “traditional” multicopter drone and a fixed-wing surveillance drone, which has a wing span of more than three metres, were deployed in parallel.
The long endurance surveillance drone took off from the Belgian coast and flew all the way to the Rentel wind farm, which is more than 35 km off the coast.
Meanwhile, an automated resident drone performed inspections and cargo flights from the substation and vessels.
This drone also conducted a full search and rescue demonstration using infrared detection and life buoy dropping.
By combining the drone operations with the use of artificial intelligence for automatic image processing, a strong set of tools has been developed to automate operations which are executed by people.
The partners said they believe that applications can “go beyond the offshore wind industry and offers solutions for safety-critical missions at sea or above land”.
DEME Offshore general manager Bart De Poorter said: “We are convinced that these innovative, advanced technologies, which focus on fully autonomous operations without the need for any vessels and people offshore, have a game-changing potential to increase safety, lower the impact on the environment in the O&M phase of a project and reduce the overall costs.
“Ultimately, we expect unmanned vehicles to contribute significantly to a lower levelised cost of energy.”