Alstom was appointed by TenneT as general contractor for the DolWin3 offshore grid connection. Alstom was to supply and construct both the onshore and offshore HVDC converter stations and the connecting cable systems. Alstom also received a five-year service contract covering the complete offshore converter station and platform as well as the onshore converter system, including inspection, preventive and corrective maintenance, refurbishment and repair, spare parts management and a technology support line. Alstom stated an order value of around £125 million for work designed and built at its Stafford HVDC centre of excellence (as part of the wider DolWin3 contract).