Causes of delay in offshore wind turbine construction projects

This research investigated the causes of delays in offshore wind projects, categorizing, and ranking these factors using statistical analysis. The study presented was based on the analysis of 208,140 historical data points from seven different cases, investigating both the onshore and offshore on-site assembly locations. The findings revealed that the dominant delay factor is 'planning' at the onshore assembly location and 'previous task' at the offshore assembly location. This challenges the current perception that weather is the dominant cause of delay in offshore wind projects. This analysis and its results categorize and rank delay factors between on-site assembly locations, proffering a better understanding and insights into this domain. This is relevant to both academics and practitioners, not only in on- and off-shore wind projects but also in other project types handling remote or multiple assembly locations.