From this information the team can discuss with the client in respect of the best course of action to take, there are several inspection methods that can be used…
• Ground Based – with a hi-resolution camera five turbines per day onshore and three turbines per day offshore can be inspected; on average it takes two hours per inspection
• Drone – qualified drone pilots can inspect multiple turbines per day
• Rope Access – highly experienced blade repair and IRATA certified Rope Access Technicians can inspect one to two turbines per day depending on the severity of the blades.
These surveys can also help to determine the severity of the blades across the windfarm. With this information a planned blade maintenance schedule can prevent minor defects turning in to severe damages that could dramatically impact on the turbine production. All photos are reviewed and categorised by severity by the technical manager and all images are treated as highly sensitive.