Dharasu Power Station | |
---|---|
Country | India |
Location | Dharasu, Uttarakhand |
Coordinates | 30°36′26″N78°19′09″E / 30.60722°N 78.31917°E Coordinates: 30°36′26″N78°19′09″E / 30.60722°N 78.31917°E |
Status | Operational |
Construction began | 1979 |
Opening date | 2008 |
Owner(s) | Uttarakhand Jal Vidyut Nigam Limited |
Power Station | |
Hydraulic head | 247.6 m (812 ft) (design) |
Turbines | 4 x 76 MW Francis-type |
Installed capacity | 304 MW |
The Dharasu Power Station is a run-of-the-river hydroelectric power station on the Bhagirathi River located at Dharasu in Uttarkashi district, Uttarakhand, India. The power station was commissioned in 2008 and has a 304 MW capacity.
The Bhāgīrathī (Pron:/ˌbʌgɪˈɹɑːθɪ/) is a turbulent Himalayan river in the Indian state of Uttarakhand, and one of the two headstreams of the Ganges, the major river of Northern India and considered holy in Hinduism. In Hindu faith and culture, the Bhagirathi is considered the source stream of the Ganges. However, in hydrology, the other headstream, Alaknanda, is considered the source stream on account of its great length and discharge.
Dharasu is a town in Uttarkashi district, Uttarakhand, India.
Uttarkashi District is a district of Garhwal division of the Uttarakhand state in northern India, and has its headquarters at Uttarkashi city. It has six Tehsils named after Barkot, Bhatwadi, Chinyali Saur, Dunda, Purola and Mori.
The power station is stage two of the Maneri Bhali Hydroelectric Project which was planned in the 1960s. In 1979, construction on stage two began. In 1984, the first stage, the 90 MW Tiloth Power Plant located upstream at Uttarkashi at 30°43′36″N78°26′44″E / 30.72667°N 78.44556°E was completed. Dharasu, the second stage was halted in 1990 due to funding issues and was not restarted until 2002. [1] The power station was eventually completed and commissioned by 2008. [2]
Water supplied to the power station is first diverted from the Bhagirathi River into a 16 km (10 mi) long tunnel by the 81 m (266 ft) long Bhali (Joshiyara) Dam located upstream near Bhali at 30°43′46″N78°25′25″E / 30.72944°N 78.42361°E . The difference in elevation between the barrage and the power station affords a design hydraulic head of 247.6 m (812 ft) and gross head of 285 m (935 ft). The water powers four 76 MW Francis turbine-generators before being discharged back into the river. The design discharge of the power station is 142 m3/s (5,015 cu ft/s). [2] [3]
Hydraulic head or piezometric head is a specific measurement of liquid pressure above a vertical datum.
The Francis turbine is a type of water turbine that was developed by James B. Francis in Lowell, Massachusetts. It is an inward-flow reaction turbine that combines radial and axial flow concepts.
The Gandhi Sagar Dam is one of the four major dams built on India's Chambal River. The dam is located in the Mandsaur, Neemuch districts of the state of Madhya Pradesh. It is a masonry gravity dam, standing 62.17 metres (204.0 ft) high, with a gross storage capacity of 7.322 billion cubic metres from a catchment area of 22,584 km2 (8,720 sq mi). The dam's foundation stone was laid by Prime Minister of India Pandit Jawaharlal Nehru on 7 March 1954, and construction of the main dam was done by leading contractor Dwarka Das Agrawal & Associates and was completed in 1960. Additional dam structures were completed downstream in the 1970s.
The Asan Barrage is a barrage in the Uttarakhand-Himachal Pradesh border region in Doon Valley,, northern India, situated at the confluence of the Eastern Yamuna Canal and the Asan River and about 11 km (7 mi) from Dakpathar, and 28 km. northwest of Dehradun.
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Loharinag Pala Hydro Power Project is a run-of-the-river hydroelectricity generating project planned by the National Thermal Power Corporation (NTPC) Ltd to have an output capacity of 600 MW. The project is located on the river Bhagirathi, the headstream of the Ganges River at Loharinag Pala, below the confluence of the Songad River, next to NH 108 in Uttarkashi District of Uttarakhand state, India. This is about 100 kilometres (62 mi) upstream of the Tehri Dam.
Chinyalisaur is a small town and tehsil headquarters in the Uttarkashi district of the Indian state of Uttarakhand. It is a semi-urban settlement. It is named after a nearby village called Chinyali. 'Saur' is the Garhrwali word for "plain" area. Chinyalisaur is located along the pilgrimage route to Gangotri, surrounded by small mountains, on the banks of the river Bhagirathi. The Chinyali Saur was the native land of Bisht Thakurs And the Nagraja temple located in the village is the oldest temple here.Due to the land of Bisht Thakurs the patti here had been named as The Bishtpati.
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The Dakpathar Barrage is a concrete barrage across the Yamuna River adjacent to Dakpathar in Uttarakhand, India. In a run-of-the-river scheme, the barrage serves to divert water into the East Yamuna Canal for hydroelectric power production at the Dhakrani and Dhalipur Power Plants. The foundation stone for the dam was laid on 23 May 1949 by India's Prime Minister Jawaharlal Nehru. The project was delayed due to funding and both power stations were commissioned in 1965. The barrage is controlled by 25 floodgates and has a length of 516.5 m (1,695 ft).
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