Siemens Wind Power was selected as turbine supplier for the original Burbo Bank offshore wind farm and supplied 25 × 3.6 MW wind turbines (SWT-3.6-107) under an order stated as costing over €90 million. In operations, Siemens later carried out a pre-emptive maintenance campaign during summer 2010, replacing blade bearings on all 25 turbines after corrosion issues were identified on blade bearings at other sites.