Idamalayar Dam is a multipurpose concrete gravity dam located at Ennakkal
between Ayyampuzha and Bhoothathankettu in Ernakulam district of Kerala on the Idamalayar, a tributary of the Periyar River in Kerala, South India. The dam however extends east as far as Malakkappara. Completed in 1985, with a length of 373 metres (1,224 ft) and a height of 102.8 metres (337 ft), the dam created a multipurpose reservoir covering 28.3 km2 (10.9 sq mi) in the scenic hills of the Anamalais.[1][2]
The reservoir storage is utilized by a hydroelectric power station which has an
installed capacity of 75 MW with two units of 37.5 MW capacity, producing an annual energy output of 380 GW·h.[3][4]
The large reservoir created by the Idamalayar Dam is operated by the Kerala State Electricity Board to augment its peak power generation requirements.[5] The dam will benefit the Idamalayar Irrigation Development Project by diverting water released from the tail race channel of the Idamalayar power station.[6]
^"Fact File on Major Dams owned by Kerala State Electricity Board". Expert Eyes. Org. Retrieved 30 January 2011.
^"Idamalayar". Kerala Planning Board.org. Retrieved 30 January 2011.
^"Generation". Kerala State Electricity Board. Archived from the original on 6 December 2010. Retrieved 30 January 2011.
^Sharad K. Jain; Pushpendra K. Agarwal; Vijay P. Singh (2007). Hydrology and water resources of India. Springer. p. 759. ISBN 978-1-4020-5179-1. The reservoir has a live storage capacity of 1018 million cubic metres at FRL 169 m
^Central Board of Irrigation and Power (1995). Water and energy, 2001. Central Board of Irrigation & Power. pp. 610, 614. Retrieved 1 February 2011.
^"Irrigation and Flood Control" (PDF). Kerala Planning Board. Retrieved 30 January 2011.
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