The constant need to reduce the cost of energy from offshore wind is driving deployment of bigger wind turbine generators on bigger monopiles. These XXL monopiles with typical diameters of 10 metres and weighing upwards of 1,600 tons are challenging beasts to install offshore. This presentation by Fabian Hippe, MD of Menck GmbH and Ivan Harnett from Acteon, focuses on the pile driving / drilling equipment used for installation, the process for installation and some of the challenges posed by ever increasing monopile size.