A chap on the BBC said that using night time electricity costs £1.75 for 150 miles. That is enough for me to get to Luton airport and back which sounds good except the upfront cost of the car is nearly £30000!
I personally like the idea of a hydrogen fuel cell where the only by product is water but currently it is expensive to separate hydrogen from oxygen and there are very few places to fill up. Using wind or nuclear to power massive electrolysis plants may be a future solution to producing hydrogen, the most abundant element, cheaper to isolate and retail.
Current electric cars are powered by Lithium-ion batteries which are range limited and don't even think about towing a caravan!
I think I could tolerate a hybrid but the upfront cost again is quite prohibitive and apparently the battery needs replacing after 10 years which could knock the second hand value for six.
In an Ideal world a portable nuclear powered drive assembly would be ideal - it could last for hundreds of years ( or millions

Back on planet earth, conventional electric cars use Lithium in the battery pack ,most lithium come from Chili - so I am off to buy shares in the mining company!
In the meantime I am sticking with petroleum - sorry Greta!