Sitting in Dong’s plush London offices, head of global operations Michael Simmelsgaard is under no illusion as to the magnitude of the task. On his office wall is a map showing the company’s rapidly expanding offshore portfolio — which is set to grow from 2.6GW to 6.5GW by 2020.

The world’s largest operator of offshore wind farms has been at the forefront of industry efforts to cut the levelised cost of energy to under €100 ($132.80)