Alot of good points to consider . The more I think about the batteries , the more unrealistic it sounds . Imagine a billion cars with a 1/2ton battery each and a life span of 10 years per battery .That would be a lot of hazardous waste . I know JCB (heavy earth moving equipment ) have created a new head for their big Diesel engines that contains a spark plug and uses Hydrogen . When you think about it , Hydrogen in bottles is no more dangerous than LPG and we have plenty of experience with gas driven cars . Once hydrogen is made ,it can be bottled to be taken anywhere . Used in a converted combustion engine , used to drive a electric motor in a car or even run your house. Imagine harvesting your solar and take the converted Hydrogen anywhere , feed your home with electricity , drive the car , sell or trade the surplus . ( I think the government probably want be in fav our of that solution for tax reasons
) I think that is avenue to pursue.With so much empty space in the out back , big solar farms could produce the hydrogen , it then can be transported anywhere with no loss. Please dont tell me I am dreaming .