Hinkley Point C, in a remote corner of the Somerset countryside, will be one of the largest nuclear power stations in Europe, and the UK's first new station in a generation. The 22-billion-GBP project requires mammoth foundations for the two reactors, excavation of 3.5km cooling water tunnels under the Bristol Channel, and an airtight inner steel lining to contain any radioactive material in the event of a meltdown.