Construction work is still under way on the wind farm, but some of the turbines are already generating power. All 36 wind turbines have now been erected and will be be extensively tested in the coming months. The wind farm is expected to be fully operational at the end of this year. Further work to complete the installation will continue until the end of this year. A protective layer of rock is being deposited on the sea bed round the foundation piles on which the turbines have been constructed. At the same time the finishing touches are being put to the electrical connection between the remaining wind turbines and the transformer substation on land in the vicinity of Wijk aan Zee.