In the UK, road and air transport (both overwhelmingly fossil-fuel based) use energy at a rate twice that of the average power transmission of the national grid. In 2015, road transport alone used energy at an average rate slightly more than the peak electricity demand in that year. In simple terms, if we electrify the road transport fleet we are going to need a grid – and electricity generation system – at least twice the capacity we have now. To generate this from nuclear power we would need 16.5 more Hinckley Point C power stations at a total cost of £404 billion.