Europe’s first two-way battery charging point for public cars is to be installed in Helsinki in Finland.
The V2G (vehicle to grid) point will enable an electric vehicle to charge, but will also enable the car to give energy back to the grid when needed. It has a charging and discharging capacity of 10 kW. This particular point is only compatible with the Nissan Leaf car.
“With the V2G charging point, the vehicle’s battery can be used as part of the energy system. In the future, electric vehicles will no longer be a load on the network, but they can be used as part of the electricity network. With two-way charging, the batteries of electric vehicles could be utilised, for example, in disturbances in the electricity network or to prevent any disruptions. [Finnish energy company Helen] is testing the practical operation of V2G at the Suvilahti pilot site,” said Helen unit manager Perttu Lahtinen.
Helen says that V2G will become more important as more energy is derived from solar and wind resources. In the future, electric car owners will be also able to use the vehicle’s battery as an energy storage unit at home, and help balance demand and consumption.