New Energy Vehicles: What’s the difference between changing electricity and charging?

The limit test of electric muck car's power changing mode-charging and power changing energy demonstration station.

The limit test of electric muck car’s power changing mode-charging and power changing energy demonstration station.

  A few days ago, the Ministry of Industry and Information Technology issued the "Notice on Launching the Pilot Work of the New Energy Vehicle Switching Mode Application" (hereinafter referred to as the "Notice"). There are 11 cities included in the pilot scope, including 8 comprehensive application cities, and Nanjing is one of the pilot cities. What are the advantages of changing electricity compared with charging? The reporter visited different types of power exchange stations that have landed in Nanjing.

  Yangzi Evening News/Zi Niu News reporter Liu Liyuan

  With the increasing number of electric vehicle users, slow charging and queuing for charging greatly affect the user experience. During the National Day this year, new energy vehicles in high-speed service areas once rushed to the hot search. As the name implies, changing electricity is to replace the battery. Compared with the current charging efficiency of electric vehicles, changing electricity is more time-saving.

  In the aspect of replacing electricity for passenger cars, Weilai, a brand of new energy vehicles, started early. Weilai staff told reporters that Weilai has built a station in Nanjing since 2018. Up to now, a total of 17 power stations have been laid in Nanjing. In Nanjing Xianlin Life Science and Technology Park, the Weilai Second Generation Power Station, which was recently launched, only needs four standard parking spaces, but it is quite efficient and convenient to operate, and it can be replaced in a few minutes. The staff said that on average, there are about 50 orders for changing power stations every day, and there are 100 orders when there are many.

  This year, State Grid Nanjing Power Supply Company and the municipal government also started the relevant exploration of replacing electricity with special vehicles. In the demonstration station of charging and replacing electric energy, which is located in Lishui, it takes only 5 minutes for an electric muck truck with insufficient battery to drive to the charging and replacing power station and replace it with a fully charged battery. In this demonstration station, the single power exchange time can be controlled within 5-7 minutes, which can provide power exchange service for 50 muck trucks. In addition, the demonstration station also bears another responsibility: compare the advantages and disadvantages of electric vehicles and traditional fuel vehicles in terms of actual cruising range, adaptability to complex road conditions, charging and replacing efficiency, user operating costs, driving experience, etc., so as to optimize and transform electric muck trucks according to the data and promote the popularization and application of electric muck trucks.

  Last year, the largest intelligent charging building for electric vehicles in China — — The electric vehicle geek space Jiangbei New District Station in Nanjing has been put into operation. The reporter learned that the station has planned a power exchange service in addition to non-inductive charging, which can exchange power for various electric vehicles such as civilian cars and network cars in the future. At present, various types of power exchange stations have not fully realized the cross-exchange of power between different brands of vehicles and different models of batteries. In view of this phenomenon, Oscar Chan, a fifth-level employee of State Grid Nanjing Power Supply Company, told reporters that establishing and improving the technical standard system for power exchange, breaking the barriers between different brands of power exchange agreements and creating a good industrial ecology for power exchange mode are important components of the pilot work of the application of power exchange mode for new energy vehicles.