TOKYO -- Large-scale energy storage systems that link directly to Japan's power grid are set to come online in the next few years as big companies including Sumitomo Corp. and Orix move into a changing electricity market.
Energy
Sumitomo, Orix bet on batteries to tame Japan's unstable power grid
New law will let storage systems earn money like solar, wind farms
Storage batteries can play a role in smoothing differences in supply and demand. (Photo by Yuki Nakao)
Read Next
Latest on Energy
