Re-financing of Operating Wind Farms : A Case Study in Northern France

This paper shows the impact on the wind farm financing scheme of an energy yield assessment based on wind farm production data. Initially, this scheme relied on an energy yield assessment based on a wind measurement campaign of medium quality. After one year of operation, the financing scheme has been updated according to a combined analysis of an additional high quality measurement campaign and of the wind farm operational data. A long-term correlation method of the production data is conducted using a site-specific energy index. With this combined approach, the uncertainty analysis yields to a p90 increase of about 15 p.c.