Death of the Internal Combustion Engine, page-10

A 5KW rooftop array will probably generate only around 15KWh per day due to non optimal angles, shade, dust and other inefficiencies. This will give you 100 km of driving. Which will have to be done at night.

By way of a motoring equivalence, 15KWh gets you the same distance as say, 7.5 litres of petrol. Multiply the millions of litres of petrol sold every day by 2 and you’ll get a feel for the massive amounts of extra electrical energy which have to be produced, which is the “easy” part and then distributed, which is the really difficult part. Today’s infrastructure can’t cope with that demand.
Sure, there are plenty of solutions and strategies, but they’re all expensive.

If you substitute dollar cost per 100Km for each fuel type, it comes to $4.50 for electric and $11.00 for petrol. EVs become quite compelling. And thus Lithium for now is becoming ever more attractive.

Of course all my numbers are crude assumptions, but not so far off the mark to not give you you some kind of a rough feel for problem.