Location of Andekaleka Dam in Madagascar
|Location||Andekaleka, Analamanga Region|
|Construction cost||US$142.1 million|
|Dam and spillways|
|Type of dam||Gravity|
|Height||10 m (33 ft)|
|Length||125 m (410 ft)|
|Andekaleka Hydroelectric Power Station|
|Commission date||1982, 2012|
|Hydraulic head||235 m (771 ft)|
|Turbines||2 x 29 MW (39,000 hp), 1 x 33 MW (44,000 hp) Francis-type|
|Installed capacity||91 MW (122,000 hp)|
The Andekaleka Dam is a gravity dam on the Vohitra River near Andekaleka in eastern Madagascar. The primary purpose of the dam is hydroelectric power generation and it diverts water from the Vohitra east into a 4 kilometres (2.5 mi) headrace tunnel where it reaches a 91 megawatts (122,000 hp) underground power station. After water charges the turbine-generators, it travels down a 500 metres (1,600 ft) tailrace tunnel before it reenters the Vohitra River. The drop in elevation between the dam and power station affords a hydraulic head of 235 metres (771 ft). The dam and power station were funded by the World Bank at a cost of US$142.1 million. It was constructed between 1978 and 1982. The power station can house up to four generators. The first two were operational in 1982 and a third in 2012.
- "Andekaleka Hydroelectric Project" (PDF). World Bank. 18 May 1978. Retrieved 18 March 2014.
- Humphries, R. W. "Underground design at Andekaleka Hydroelectric Development". Canadian Geotechnical Journal. Retrieved 18 March 2014.
- "Andekaleka Hydroelectric Project Completion Report" (PDF). World Bank. 27 December 1991. Retrieved 18 March 2014.
- "Inventaire du parc hydroélectrique existant - Juin 2013" (in French). ORE. June 2013. Retrieved 18 March 2014.