Tokyo Energy & Systems, Inc. engages in design, construction and supervision of electric and mechanical facilities. It operates through the following segment: Facility Construction. The Facility Construction Business involves the construction and maintenance of thermal, nuclear, hydroelectric, cogeneration, solar and biomass power generation facilities, as well as the design and construction of substation, general electrical, information and communications equipment and air conditioning facilities The company was founded on August 14, 1947, and is headquartered in Tokyo, Japan.