Another exciting development, not that EV second life batteries as storage is new, a number of such projects exist, but because of the players. BMW is a brand with a big pull, and a reputation for quality and build quality. Likewise Bosch is well known in many diverse industries, not just automotive and energy. And of course seeing a big utility like Vattenfall engage is good to see.
The more projects of this nature get into the public domain the better. The battle for energy storage and clean energy generally is as much a battle for the hearts and minds of consumers and the public as it is a technical one. When people see it works, now, then they can question politicians on why choose older, fossil based solutions. In that regard Tesla, BMW, Mercedes Benz, Nissan etc bring exposure and projects that aid the market as a whole.
2 600 used battery modules from over 100 electric vehicles The electricity storage facility consists of 2,600 battery modules from over 100 electric vehicles. It has a power rating of two megawatts (MW) and a storage capacity of 2,800 kilowatt-hours (kWh). This is enough to supply electricity to an average two-person household for seven months. However, the stored energy is not intended for general supply, but instead is sold on the primary control reserve market by Vattenfall, along with power from other flexibly controllable facilities. The storage facility delivers primary control reserve power necessary to keep the 50 Hz grid frequency stable. Primary control reserve power must be available within a few seconds.