Operational Metrics for an Offshore Wind Farm & Their Relation to Turbine Access Restrictions and Position in the Array

Abstract This study explores operations & maintenance requirements for offshore wind turbines. It does so by calculating performance, reliability and metrics from an operational database provided a large farm. Distributions of number repairs repair times per turbine are shared, as well visits. A focus is placed on the effect tidal access restrictions position in array comparing clusters turbines within was found that lead to increase mean time 16%, 0.22% decrease technical availability. Turbines first few rows with reference prominent direction experience more minor failures average, while those constantly operating wake others characterised major failures, therefore higher repair.