Tokyo Electric Power Company Holdings, Incorporated is a Japan-based company principally engaged in the electricity business. The Company operates in four business segments. Holdings segment is involved in the management support and the provision of common services to core business companies, as well as the sale of electricity from hydroelectric power generation and nuclear power generation. Fuel & Power segment in involved in the sale of power from thermal power and procure fuel, the development of thermal power, as well as the investment in the fuel business. Power Grid segment is involved in the supply of electricity by transmission, transformation and distribution, the construction and maintenance of transmission, distribution and communication equipment, as well as the investigation, acquisition and maintenance of equipment land and buildings. Energy Partner segment provides total solutions and services in accordance with customer requirements and provides power supply.