Maintenance service is a vital element and has a major contribution within the overall costs of maintaining a wind farm. The maintenance of WTGs is generally categorised into predictive and reactive maintenance. In reactive maintenance, repairs are undertaken once a component fails and often results in long downtimes for the affected WTG. In predictive maintenance, efforts are taken to detect potential component failures in advance so as to be able to resolve any issues early and minimize such downtime. The Company focuses on predictive maintenance through the scheduling of regular inspections and maintenance (which are enhanced during peak wind seasons) as well as employing advanced tools such as wtSCADA to monitor the conditions of the WTGs and common infrastructure facilities in our portfolio to allow for early detection and resolution of issues.