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Himachal Pradesh & Punjab Nathpa Dam
Nathpa Jhakri dam has the largest power generation plant in India. This dam is located on Sutlej River in Shimla district of Himachal Pradesh state of India. This dam was conceptualised in 1991. A MoU was signed between the state government of Himachal Pradesh and central Government of India to construct this dam in Shimla district. The project has been financially shared by both the governments on fifty percent ratio. This project has also the back support from World Bank but major financial assistance has been provided internally. Rs. 8187 crore were expended in completion of this project. Officially this dam was inaugurated by Prime Minister of India Dr. Manmohan Singh on 28/05/2005. Though, the commissioning of the dam was completed in 2004 but due to some political reason the inaugural ceremony delayed.
This dam was completed in 2004 and dedicated to the country in 2005. River Sutlej flows through Shimla district and has very steep and ‘U’ Turns. On one of these turns, this project was started seeing the natural, fast and dense flow of water. These conditions are very appropriate for installation of hydro electrical plants. The plants established at this dam are supplying electricity to Himachal Pradesh, nearby state Haryana, Jammu and Kashmir and Punjab. Some portion of Uttarpradesh and Uttarakhand are also supplied from this station. Northern grid is very powerful grid in entire north India and it gets power from this Hydro electricity plant.
This plant has been designed to store water upto the 200,000 m3 . 6950.88 million unit electricity is also set as production target at this plant. This is a gravity based dam. This dam is largest dam of the country with respect of the Hydro electricity generation. 1500 MW hydro electricity is produced here with the help of six units installed. This is the underground power plant. Water is passed through a 17 miles long tunnel before it enters the power plant. The project is a joint venture of state government and central government and finally it is owned by SJVN Limited. This power station is located between the geographical coordinates 31°33′50″N 77°58′49″E. Height of this dam is 62.5 Mtrs and length is 185 mtrs. Spillway capacity of the dam is 5,660 m3/s (199,881 cu ft/s). A large water reservoir having the capacity of 3,430,000,000 m3 is there and spread over a surface area of 234.5m. 6 x turbines of 250 MW capacities are installed at this plant to produce 1500 MW hydro electricity.
The dam is located at very beautiful place. Natural scenic beauty and lush and dense surroundings made this area an ideal picnic spot. In nearby places of this spot, Naldehra and Mashobra are famous. This place is well connected with the state highways and other link roads. Shimla being the tourist city attracts a lot of tourists towards this dam. In the large reservoir of this dam, boating and para sailing facilities are provided for the entertainment of tourists.