LG Chem will integrate six large-scale batteries in STEAG power plants. As part of the world's largest ESS (energy storage systems) project, STEAG GBS (Großbatterie-Systeme) plants belonging to the German power supplier in North-Rhine Westphalia and Rhineland Palatinate will be modernized. With 140-MW hours of power, the storage systems will deliver enough energy to supply 10,000 households per day with electricity.
Sumitomo developed and installed the world's first large-scale power storage system that utilizes used batteries collected from electric vehicles. This commercial scale storage system, built on Yume-shima Island, Osaka, began operating in February 2014. Over the next three years, the system will measure the smoothing effect of energy output fluctuation from the nearby Hikari-no-mori solar farm, and will aim to establish a large-scale power storage technology by utilizing the huge quantities of discarded used EV batteries.