A method for determining the production based availability of a wind farm

A method for determining the production based availability of a wind farm comprising wind turbines, the method comprising the following steps which are computer-implemented:

• obtaining wind farm data relative to features of the wind farm,
• obtaining past meteorological data relative to an environment of the wind farm,
• obtaining strategy data relative to operation and maintenance resources to carry out an action on the wind turbine(s) of the wind farm,
• obtaining systematic losses data relative to each turbine of the wind farm,
• determining time series for the wind farm on the basis of the wind farm data, of the meteorological data and of the systematic losses data, the time series extending over a given time period divided in timesteps, the time series comprising at least an expected production for each wind turbine and a total expected production for the whole wind farm at each timestep of the given time period, the expected productions taking into account systematic losses relative to each wind turbine,
• determining the availability of each wind turbine at each timestep of the time series on the basis of the wind farm data, of the strategy data and of the meteorological data,
• determining a total delivered production for the whole windfarm on the basis of the expected production of each wind turbine at each timestep and of the determined availability of each wind turbine at each timestep of the time series, and
• determining the production based availability of the whole wind farm at each timestep of the given time period on the basis of the total expected production and of the total delivered production determined for the whole wind farm at each timestep of the given time period.