“Peak to trough in the UK is currently about 18GW. Lets say that averages to 9GW over a 12hour period, so the UK has spare capacity of 108GWh per day.”
Unless the power required to charge EV’s comes from non-fossil fuels the arguments for the electric vehicle mostly disappears, so the need to meet demand is still a challenge.
The UK grid has been significantly cleaned up over the last few years, and is now approaching 50% low/no carbon. We are down to our last 4 coal fired power stations, and there have been extended periods this year (over a month at a time) where no coal has been burned. The remaining coal stations are due to close by 2024. The big slug of fossil fuel burn on the grid is natural gas in combined cycle gas turbine power stations, which is about as clean as you can get if you still need to burn fossil fuel.
I am no EV evangelist, but I can see the positive arguments - even if the pollution per mile was no better for a battery car, at least the fuel in a power station is being burnt away from the high street and the exhaust not discharged at street level. You also have the benefit as an EV driver that as the grid gets cleaner, so does your car.
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