Expectations of wind farm performance are defined and negotiated before financial close of a project in order to minimise financial risk. However, the actual performance of a wind farm can vary compared to these budget expectations. Reasons for this variation can include: wind resource, availability, power performance, curtailments and uncertainties in the long term energy forecasts. Each of these factors will be covered in this course. The course also includes live and interactive demonstrations of tools used to monitor and optimise the performance of turbines. The course allows attendees to benefit from DNV GL’s extensive experience of project due diligence, performance optimisation and wind farm operation, and avoid common mistakes and misconceptions. On completion, delegates should understand the most significant factors affecting wind farm performance and how to measure them. Specifically: how an operational wind farm’s long term energy yield is assessed; what performance factors appear in contracts; how turbine performance is measured; how wind farm performance can be optimised and monitored.