Price at system level remain quite high
http://www.energypost.eu/anil-srivastava-ceo-leclanche-europes-battery-leader-public-transport-take-lead-electrification/
According to Srivastava, the biggest challenge for electric cars today is not cost of storage, as many people think. Costs are steadily coming down. “Prices in Europe today are down to €600/kWh at the system level. We will be able to reduce them another 20 to 30 per cent in the next three years.”