RE: Figuring13 May 2019 23:57
Cheers observer. So 2017 figures give 11.7 million tonnes of petrol for road transport, and 24.9 million tonnes of diesel. In one tonne of petrol I have a figure of about 1,370L petrol, and one tonne of diesel a figure of 1,176L of diesel. There are - I think - 9.7kWh of power in 1L petrol, and 10kWh in diesel. So petrol = 9.7kWh*16,029,000,000L = 155,481,300,000kWh, and diesel = 10kWh*29,282,400,000L = 292,824,000,000kWh. Total kWh needed for road transport in 2017 = 448,305,300,000kWh
2017 renewable capacity is about 40.5GW? This is 40,500,000kW. 448,305,300,000/40,500,000 = 11,069. So renewables have to provide 11,069 times more energy than they did in 2017 to power a totally EV road transport network.
Given that nuclear is in disarray, and the energy tzar just resigned over fracking being roadblocked by regs, I’m starting to worry that this whole EV thing is going to hit the skids of incoherent government energy policies. I’m the first to admit that I am not to be trusted with a calculator but if my calcs are anything near right then we might have a problem.