Irganai Dam
| Irganai Dam | |
|---|---|
 | |
  Location of the Irganai Dam in Dagestan  Irganai Dam (Russia) | |
| Country | Dagestan, Russia |
| Location | Untskul region |
| Coordinates | 42°44′42.72″N 46°49′53.76″E / 42.7452000°N 46.8316000°E |
| Status | Operational |
| Construction began | 1979 |
| Opening date | 1998 |
| Owner(s) | RusHydro |
| Dam and spillways | |
| Impounds | Avar Koisu |
| Height | 111 m (364 ft) |
| Length | 317 m (1,040 ft) |
| Reservoir | |
| Creates | Irganai reservoir |
| Total capacity | 705,000,000 m3 (2.49×1010 cu ft) |
| Surface area | 18 km2 (6.9 sq mi) |
| Power Station | |
| Turbines | 4 x 200 MW |
| Installed capacity | 400 MW 800 MW (max. planned) |
| Annual generation | 1,280 GWh |
Irganai Dam is a hydroelectric dam in the Untskul region of Dagestan, Russia. It is located on the river Avar Koisu.
History
[edit]Construction of the dam and power station started in 1979. The first generation unit of the Irganai hydropower station was launched in 1998.[1] The second generation unit was launched in 2001.
Technical description
[edit]The dam is 111 metres (364 ft) high and 317 metres (1,040 ft) long at the crest. It is filled of gravel with asphalt-concrete diaphragm. The complex includes tunnel spillway, intake structure, two diversion tunnels 5.2 kilometres (3.2 mi) each, underground surge tanks, steel-reinforced concrete penstocks, and a powerhouse.[1]
Irganai is the largest derivational hydroelectric power station in Russia, with two radial-axial hydraulic units with a capacity of 200 MW each.[citation needed] The power station has a total installed capacity of 400 megawatts (MW) and projected capacity of 800 MW.[1][2] Its mean annual electric energy output is 1,280 GWh.
The dam creates the Irganai reservoir. The reservoir has a surface area of 18 km2 (6.9 sq mi). Its full capacity is 705,000,000 cubic metres (2.49×1010 cu ft) and alive storage capacity is 397,000,000 cubic metres (1.40×1010 cu ft).[1]
The dam and power station is projected by Lenhydroproject and operated by RusHydro.
Incidents
[edit]On 7 September 2010, fire broke out at power station's hall. On 9 September 2010, Russian security forces defused an explosive device equivalent to 3 kilograms (6.6 lb) of trinitrotoluene in the room.[3][4] On 31 January 2011, a stick of dynamite was discovered at the power station.[citation needed]
References
[edit]- ^ a b c d "Fire at Irganay HPP". Hydroproject. 2010-09-08. Archived from the original on 2011-10-03. Retrieved 2011-01-31.
- ^ "Fire breaks out at hydropower plant in Russia's Dagestan". HydroWorld. PennWell Corporation. ITAR-TASS. 2010-09-08. Archived from the original on 2011-07-12. Retrieved 2010-09-08.
- ^ "Explosive device found, defused at hydropower plant in Russia". HydroWorld. PennWell Corporation. 2010-09-09. Retrieved 2011-01-31.
- ^ "Bomb blast prevented at Irganai Dam". Voice of Russia. 2010-09-09. Archived from the original on 2012-04-01. Retrieved 2011-01-31.
