Method for determining the production availability of an offshore wind farm

A method for determining the production availability of an offshore wind farm, the offshore wind farm comprising at least one floating wind turbine, the method comprising the following steps which are computer-implemented:

• obtaining wind farm data relative to features of the offshore wind farm,
• obtaining strategy data relative to operation and maintenance resources to carry out an action on the floating wind turbine(s) of the offshore wind farm,
• obtaining meteorological data relative to an offshore environment for the offshore wind farm over a given period of time,
• determining motion parameters as a function of the wind farm data and of the meteorological data, the motion parameters being parameters quantifying the motions of at least an element, such as the nacelle or the floater, of a floating wind turbine of the offshore wind farm and/or the motions of a vessel aiming to reach said floating wind turbine to perform operation and/or maintenance actions on said floating wind turbine, and
• determining the production availability of the offshore wind farm in the offshore environment over the given period of time on the basis of the wind farm data, of the strategy data, of the meteorological data, and of the determined motion parameters.