For the first time, EVgo equipped one of their fast-charging station with a back-up made from reused batteries from the BMW i3. For now said stationary set-up is a standalone but EVgo say they are planning to expand such second-life applications.
It is the first commercial installation of second-life battery storage at a public DC fast charging station for EVgo. It follows a successful trial at the University of California San Diego (UCSD).
The EVgo station at 3960 Smith Street, Union City, California has a total of 4 integrated BMW i3 batteries to store energy from the grid generated during peak solar hours. The second-life battery system integrates two battery packs into a single housing. Each pack has a capacity of 22 kWh and offers a 30 kW/44 kWh energy storage system capable of demand charge management.
BMW provided the recycled energy storage packs from i3s and continues to provide ongoing technical support. Princeton Power Systems provided inverter hardware and integrated the inverter with the battery packs into a working system. Kisensum developed software controls for the battery system and managed software integration for the overall site level demand charge management.
EVgo plans to deploy additional energy storage resources at stations across the network for DC fast charging.