Currently the cost of energy to the charging stations open to the public is too high with peaks reaching € / cent 50 kWh. The cost of electricity to recharge the car privately in garages and parking spaces depends on the cost of the energy contract for your residence, but in any case there is no incentive reduction for those who use an electric vehicle. Without a clear intervention that reduces the cost of electricity dedicated exclusively to recharging for electric transport, electric mobility will not be really competitive with the traditional one that uses fossil fuels, causing huge slowdowns in the development of electric vehicles and therefore in achieving objectives provided for the reduction of CO2. During the transition period, it is essential to implement all the rules necessary to have a rate dedicated to transport with low-priced electric vehicles  (in any case never higher than the cost of domestic energy). All about hadware you can find here