TESCO was created in 5th Auguest 2004 as a Semi-Autonomous Body for the purpose of coordinating and giving a unified direction to the development of schemes in Water and Power Sectors, which were previously being dealt with, by the respective Electricity and Irrigation Department of the Provinces.
FATA has 2,89,729 No. of electricity consumers spread over in area of 27,333 sq. Kilometers. Four Operational Divisions with 11 Sub Divisions in the area, are engaged in operation and maintenance of electricity system. The area was previously being served by FATA Circle of Peshawar Electricity Supply Company. However, in order to improve operational efficiency and better customer services, a separate company was established on 4th Aug, 2004 with the name of TESCO (Tribal Electric Supply Company) to carry-out expeditious development,operation, maintenance and augmentation of electrical network with revenue collection in the area.