The 220 kV transmission line extending from Mary HPP to Herat city, i.e., to the border of Turkmenistan and Afghanistan, is fully ready for commissioning. This power transmission line is one of the links of the project on construction of the transboundary energy highway - high voltage transmission line TAP (through the territory of Turkmenistan, Afghanistan and Pakistan).
The transmission line section from Mary HPP to Herat stretches 260 km, with 876 high-voltage supports installed along its entire length. At the Mary HPP site the power engineers of Turkmenistan have completed the expansion of the open switchgear. At the moment, the only unfinished object is the transformer substation 220/110/10 kV in Serkhetabat, where, according to the schedule, the works should be completed by the end of May 2021.
Reliable operation of the power line in Turkmenistan is ensured by communication systems of telecontrol and modern relay protection that meet high world standards.
The start of operation of the transmission line from the Mary hydropower plant to Herat is scheduled for August 2021.