What similarities exist in terms of risk? 

Several parallels exist between offshore wind and petroleum activities with regard to risk conditions and safety challenges. Both sectors involve challenging activities, such as lifting and marine operations, work in enclosed spaces, high voltages, dropped objects, hand tools and work at a height. 

The biggest difference between the two is that the dominant risk associated with handling large quantities of oil and gas under pressure does not arise on offshore wind facilities. 

This means that the major accident risk is significantly smaller with the latter. But the sector nevertheless has a potential for major accidents and incidents involving multiple fatalities.