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About 464,000 m 3 (16,400,000 cu ft) of concrete was used in the construction of the dam. This project is situated in Idukki District and its underground power house is located at Moolamattom which is about 43 km (27 mi) from the dam. It is notable that the Idukki arch dam does not have any shutters.
Moolamattom Power Station is the biggest underground hydro-electric project in India. The water from the Idukki Dam is carried by the underground pipes to the power station. The installed capacity of the power house is 780 MW consisting of six generator units of 130 MW each. [2]
The water discharged from the power station reaches the Thodupuzha River (a tributary of Muvattupuzha river) which becomes full of water throughout the year due to this. The power house is located underground in the foothills of Nadukani hill, at a distance of 46 km from the Idukki dam. [3]
Its generators have a power output of 780 MW (6 × 130), and generate electricity through the underground facility at Moolamattam, built by an India-Canada joint venture. Power generation at Idukki is minimal during the monsoon. The dam also permits storage of water for the dry summer period when many other reservoirs in the area are low.
There are multiple dams in 3 reservoirs - Gavi Dam, Kakki Dam, and Idukki Dam. In addition, there are 10 large barrages also in the state. Out of the 81 dams 37 reservoirs are used for hydroelectric power, 27 reservoirs are used for irrigation and 9 reservoirs are used for both hydroelectric power and irrigation.
Kundala dam and lake Idukki arch Dam. Around 66% of Kerala's power needs come from various Hydroelectric Power Projects in Idukki district. [1] The first and oldest dam in Kerala is Mullaperiyar. It was inaugurated in 1895. The largest dam in Kerala is Idukki Dam, which also one of the largest arch-dams in Asia. The dam was commissioned in 1976.
Construction of this Cheruthoni Dam, Idukki Arch Dam and Kulamavu Dam created an artificial lake of 60 km 2 and the water stored, is used for electricity generation at the Idukki power station. Located at Moolamattom, it is the biggest underground power station in India and the pressure shaft is the largest in the country. Cheruthoni is the ...
Sengulam Dam: 0.33 Idukki 10° 00' 77° 05' 28. Periyar River Neriamangalam Dam: 4.13 Ernakulam: 29. Periyar River Bhoothathankettu Dam: 6.08 Ernakulam: 30. Periyar River Periyar Lake 28.90 Idukki 10° 10' 76° 15' 31. Valapattanam River: Pazhassi Dam: 6.48 Kannur: 32. Karamana River: Peppara Dam: 5.82 Thiruvananthapuram 33. Thodupuzha River ...