The Tersky Cascade is a complex of existing and promising hydropower plants on the Terek River, in Georgia and Russia. Along with the Kuban and Sulak , the Terek is one of the largest rivers in the North Caucasus , however, the hydropower potential of both the Terek and its basin is currently poorly developed. Currently, there are three hydroelectric power stations operating on the Terek River; construction of several more hydroelectric power stations is planned for the future. The total capacity of the existing hydroelectric power stations of the cascade is 184.84 MW , the average annual output is 904 million kWh . The total capacity of promising hydroelectric power stations of the cascade is 379.5 MW, the average annual output is 1610 million kWh.
Existing hydropower plants
- Daryali hydroelectric power station. Located in Georgia, in the Darial Gorge . High-pressure derivative hydroelectric power station with a capacity of 108 MW and an average annual output of 510 million kWh. It was commissioned in 2017.
- Larsi hydroelectric power station. Located in Georgia, in the Darial Gorge. A derivative hydroelectric power station with a capacity of 20 MW and an average annual output of 100 million kWh. It was commissioned in 2014.
- Ezminsk hydroelectric station . Located at the exit of the Darial Gorge, near the border with Georgia. High-pressure derivative hydroelectric power station with a capacity of 45 MW, average annual production - 251 million kWh. In the building of the hydroelectric station, three radial-axial hydraulic units were installed, operating at a design pressure of 161 m. It was launched in 1954.
- Dzau hydroelectric power station . It is located in Vladikavkaz . The medium-pressure derivative hydroelectric power station with a capacity of 9.2 MW, the average annual production - 41.9 million kWh. Four radial-axial hydraulic units were installed in the HPP building, operating at a design pressure of 27.5 m. It was launched in 1948.
- Pavlodolskaya hydroelectric power station . It is located at the Pavlodolsky waterworks, which takes water into the Tersko-Kumsky canal . The capacity of the hydroelectric power station is 2.64 MW, the average annual output is 1.2 million kWh. In the building of the hydroelectric station, two propeller hydraulic units were installed, operating at a design pressure of 7.5 m. It was launched in 1965.
Promising Hydroelectric Power Station
- Daryal hydroelectric station (Daryal hydroelectric station-2). The design capacity is 40 MW, the average annual output is 167 million kWh. Head 85 m, estimated flow rate 70.8 m³ / s. Geographically, the hydroelectric station is located in North Ossetia.
- Dolnodolinskaya hydroelectric station. The design capacity is 148 MW, the average annual output is 400 million kWh. Head 200 m, estimated flow rate 32 m³ / s. Geographically, the hydroelectric station is located in North Ossetia [1] . The economic feasibility of constructing these hydropower plants is defined in the Hydroproject Institute developed in 1980, the “Layout of Priority Hydro Power Plants and PSP in the North Caucasus” [2] .
- Mozdok hydroelectric station . The design capacity is 7.5 MW, the average annual output is 25 million kWh. Head 7.5 m. Geographically, the hydroelectric station is located in North Ossetia, on the 21st kilometer of the Tersko-Kumsky channel.
- Kurp hydropower plants. They are a complex of three derivational hydroelectric power plants with a total capacity of 184 MW and an average annual output of 1018 million kWh. The pressure at each hydroelectric station is 55-60 m, the estimated flow rate is 120 m³ / s. Geographically, hydroelectric power plants are located in Kabardino-Balkaria and are included as promising in the republican target program “Development of electric power industry and energy conservation in the Kabardino-Balkarian Republic for 2009-2013” [3] .
Notes
- ↑ Khuzmiev I.K. et al. Innovation zone in North Ossetia-Alania “Silicon Valley“ Taguria ” // Sustainable development of mountainous territories. - 2009. - No. 2 . - S. 70 . (inaccessible link)
- ↑ http://www.zaramag.rushydro.ru/file/main/zaramag/investors/disclosure/annual-reports/GO__2007_Zaramagskie_GES.pdf
- ↑ http://www.kbpravda.ru/2009/08/28d.pdf