The largest American electric vehicle (EV) public fast charging network (EVgo) has launched the first commercial two battery charger (Second-Life battery) storage device at the DC fast charging station. Following the pilot program at the University of California at San Diego (UCSD), the two battery system has been unveiled at the EVgo fast charging station, No. 3960, Smith street, California.            The EVgo integrated the two battery of BMW I3 to store the power of the power grid generated by solar peak hours and to use stored energy at the peak of the charging demand to provide fast charging for EVgo customers. In addition to reducing the use of solar and wind energy and the benefits of all grid users, EVgo has also proven commercially for the benefits of reusing electric batteries for the power grid.     

EVgo CEO (CEO) Cathy Zoi said, "EVgo is driving energy innovation in the field of electric vehicles, because we provide solutions to the environment and to make fast charging more economical. The United city's charging station is only the first step in integrating EVgo's advanced energy storage system into the fast charging network in the United States.           

Austin Brown, executive director of the energy, environmental and Economic Research Institute at University of California at Davis, said: "speeding up the use of two batteries is an exciting development that allows consumers to afford the fast charging of a clean electric car and make the power grid unaffected by the electric demand for electric vehicles, and take the two battery as a recharge. The battery can achieve win-win economic and environmental benefits for electric vehicles. "           

The EVgo charging station of the United city started operation earlier this summer and already has two 50 kilowatts (kW) DC fast charger. The two battery system integrated the BMW I3 battery pack into a charger case, with a capacity of 22 kwh per two battery pack, and a 30 kilowatt /40 kwh storage system when using a 30 kW inverter to manage the charging demand.           

Before the two battery system was launched in the United City, EVgo carried out a successful test at the microgrid of University of California at San Diego. The test case and the implementation of the two battery system of the United city are part of the first project of the current three technical demonstration projects of EVgo. The three technical demonstration projects are: 1) to support the energy storage of electric vehicles fast charging; 2) to power grid (V2G) technical projects; 3) charging (5) More than 0 kilowatts) were supported by the California Public Utilities Commission.           

With the joint efforts of many partners of the project, the project of the United city will be successful. BMW provides a circular energy storage package for BMW I3 models and continues to provide technical support; the Princeton power system (Princeton Power Systems) provides inverter hardware and integrates inverters into a product system; Kisensum has developed control software for the battery system and the work of software integration. It is used to manage the charging requirements of the entire site. EVgo plans to deploy more energy storage equipment at the charging station of the entire charging network, and regards energy storage as a key technology to realize the fast charging of DC at affordable prices.