Tetrikhevi HPP

Tetrikhevi Hydroelectric Power Station is a hydroelectric power station in Georgia, the third and final stage of the Samgori cascade, located on the Upper Samgori Main Canal on the eastern outskirts of Tbilisi in the settlement of Tetrikhevhesi. It is a key element of the Samgori irrigation and energy system, created in the post-war years to irrigate arid lands and generate electricity. The station is also notable for its status as an active training and laboratory base for power engineering students from the Georgian Technical University. Construction of the station was carried out as part of the "people's construction" of the Samgori system starting in 1947; the Tetrikhevi HPP was put into permanent operation in 1955. In 1995, the station was privatized by its workforce, which enabled its rehabilitation and a significant increase in electricity generation. The current owner is Georgian Water and Power. By design, it is a diversionary, canal-type HPP. The installed capacity of the station is 13.6 MW. The powerhouse contains two hydro-units with Francis turbines, operating at a design head of approximately 110 meters. A distinctive feature of the Tetrikhevi HPP's operation, like the entire cascade, is its seasonal regime: during the winter, the station generates peak electricity by transferring water from the Sioni Reservoir to the Tbilisi Reservoir,

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