NDRC suggests EVs as energy storage devices

The National Development and Reform Commission (NDRC) released the suggestions on innovating and boosting the green development of pricing mechanism on July 2.

The NDRC suggests that it is necessary to improve the peak-valley electricity price forming mechanism. Moreover, leveraging on modern technologies, such as information and connected vehicle, China encourages electric vehicles to provide energy storage services and make profits by the price gaps between peak and valley.

The energy storage modes of electric vehicles mainly include vehicle-to-grid (V2G), orderly battery charging, battery swapping and energy storage of disused batteries. A large quantity of electric vehicles can be used as storage devices for distributive power resources, providing substantial resources for power grid system.

Specifically, the vehicle-to-grid (V2G) has the greatest potential, which can be used to assist the electricity supply for power grid and renewable energy resources. When the load of grid is too high, the electric vehicles can supply their stored energy to the grid. When the load of grid is too low, the electric vehicles can store the redundant electricity to avoid waste.

The power storage methods of vehicle-to-grid (V2G) and disused batteries will be subsumed under the distributive power resource management, helping to encourage energy storage of EVs among EV owners, social capitals and battery charging service providers.

The suggestions also state that a pricing mechanism and a pricing policy system should be set up to boost green development by 2020. Moreover, the pricing mechanism should be further enhanced and be translated into action thoroughly by 2025.