Mequinenza Dam
Mequinenza Dam | |
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Location of Mequinenza Dam in Spain
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Official name | Presa de Mequinenza |
Location | Province of Zaragoza, Spain |
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Purpose | Power |
Status | Operational |
Construction began | 1957 |
Opening date | 1964 |
Owner(s) | Endesa |
Operator(s) | Endesa |
Dam and spillways | |
Type of dam | Concrete gravity dam |
Impounds | Ebro |
Height (foundation) | 79 m (259 ft) |
Length | 461 m (1,512 ft) |
Elevation at crest | 124 m (407 ft) |
Dam volume | 1,100,000 m3 (39,000,000 cu ft) |
Spillway type | Over the dam |
Spillway capacity | 11,000 m3/s (8.9 acre·ft/s) |
Reservoir | |
Total capacity | 1,530,000,000 m3 (1,240,000 acre·ft) |
Surface area | 75.4 km2 (29.1 sq mi) |
Max. length | 110 km (68 mi) |
Max. width | 600 m (2,000 ft) |
Max. water depth | 62 m (203 ft) |
Normal elevation | 121 m (397 ft) |
Power station | |
Commission date | 1966 |
Turbines | 4 x 96 MW Francis-type |
Installed capacity | 384 MW |
Mequinenza Dam (Spanish: Presa de Mequinenza) is a concrete gravity dam in the province of Zaragoza, Spain. It impounds the Ebro creating a large reservoir, which is called Mar de Aragón.[1] About 35 km downstream of Mequinenza dam is Ribarroja dam.
Empresa Nacional Hidroeléctrica del Ribagorzana S.A. (ENHER) was mandated in 1955[2][3] by Instituto Nacional de Industria (INI) to build two dams on the Ebro near Mequinenza and Ribarroja. Work on Mequinenza dam started in 1957.[1] The filling of the reservoir began in December 1965.[2] The power plant was operational in 1964[3][4] (1966[5]). ENHER was acquired by Endesa in 1999.[6]
Dam
Mequinenza Dam is a 79 m tall (height above foundation) and 461 m long gravity dam with a crest altitude of 124 m. The volume of the dam is 1,100,000 m³. The dam features a spillway with 6 gates over the dam (maximum discharge 11,000 m³/s) and one bottom outlet (maximum discharge 160 m³/s).[7]
Reservoir
At full reservoir level of 121 m.a.s.l. the reservoir has a surface area of 75.4 km², a total capacity of 1.53 billion m³ and a length of almost 110[2][3] km. The average width of the reservoir is about 600 m, its maximum (average) depth is 62 (20) m.[5]
Power plant
The power plant contains 4 Francis turbine-generators. The initial nameplate capacity was 81 MW each. The turbines, generators and transformers were refurbished from 2007 until 2010 raising the capacity of the new machines to 96 MW each.[4] Maximum flow is 150 m³/s per turbine.[5]
See also
External links
Wikimedia Commons has media related to Mequinenza Dam. |
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References
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