It all comes down to the price of the lithium-ion battery, which nowadays costs a shade under $600 per kilowatt-hour (kWh) of storage capacity. As an electric car capable of travelling 75 miles or so between charges needs around 24kWh of capacity, the battery alone adds $14,000 to the price of the vehicle. The result is a car that costs way too much for what it offers in fuel savings.”

 

The Economist, Difference Engine: Tailpipe truths