• Electricity production in our country started with a dynamo in 2 kW installed capacity connected to a water mill in Tarsus in 1902 and the first significant electricity production facility, Silahtarağa Power Plant was taken into service in 1914. In the early years of Turkish Republic, Turkish transmission system did not exist however only local distribution system existed and installed capacity was 33 MW. By the end of 2017, Turkish transmission system has reached 85.200 MW installed capacity, 66.453 km transmission line, 163.849 MWV transformer power in European standards.

  • From the proclamation of Turkish Republic in 1923 until today, Turkish electricity sector has undergone very important physical developments and structural changes. In order to abolish dispersed structure in power sector and provide operational integration, Turkish Electricity Association (TEK) was established in 1970 and generation, transmission, distribution and selling services were incorporated nationwide in TEK, except duty areas of privileged companies and municipal boundaries.

  • In 1993, for the purpose of maintaining transmission service in more active, productive and modern manner and within the scope of privatisation policies, TEK was unbundled into two separate state economic enterprises: Turkish Electricity Generation-Transmission Co. (TEAŞ) and Turkish Distribution Co. (TEDAŞ)

  • In 2001, competitive open market was introduced and TEAŞ was unbundled into three separate state economic enterprises: Turkish Electricity Transmission Co. (TEİAŞ) responsible for transmission, Electricity Generation Co. (EÜAŞ) responsible for generation and Turkish Electricity Trade Co. (TETAŞ) responsible for trade.

  • Within the context of the “Transmission Licence” obtained from Energy Market Regulatory Authority (EMRA) in 2003 and according to new market structure, TEİAŞ has been carrying out its activities by central units, nationwide regional directorates and load dispatch directorates.