gremz,Inc. engages in energy cost solution, smart house, and electricity retailing businesses in Japan. The company sells electronic circuit breakers, LED illumination, and energy-efficient appliances. It also provides photo-voltaic systems, storage batteries, and electric appliances, as well as generates renewable energy. In addition, the company retails electric power to low and high voltage electricity customers. gremz,Inc. was incorporated in 2005 and is headquartered in Tokyo, Japan.