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Tapovan Vishnugadh Dam | |
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Country | India |
Location | Chamoli District, Uttarakhand |
Coordinates | 30°29′38.9″N079°37′39.1″E / 30.494139°N 79.627528°E |
Purpose | Power |
Status | Under construction |
Construction began | November 2006 |
Owner(s) | NTPC Limited |
Dam and spillways | |
Type of dam | Concrete |
Impounds | Dhauliganga River |
Tapovan Vishnugad Power Plant | |
Coordinates | 30°32′08.2″N079°31′09.9″E / 30.535611°N 79.519417°E |
Commission date | 2020 |
Turbines | 4 x 130 MW Pelton-type |
Installed capacity | 520 MW |
The Tapovan Vishnugad Hydropower Plant is a 520 MW run-of-river hydroelectric project being constructed on Dhauliganga River in Chamoli District of Uttarakhand, India. The plant is expected to generate over 2.5 TWh of electricity annually. [1]
Tapovan Vishnugad is NTPC's second hydro power project since its foray into the sector. The 520 MW run-of-the-river project is situated on river Dhauliganga in Chamoli district of Uttarakhand. Its journey started with NTPC entering into an understanding with the Govt. of Uttarakhand for feasibility study for the project on 31.12.2002 and then signing the Implementation Agreement on 23.06.2004. Currently,[ when? ] it is in advanced stage of construction with around 70% of the implementation completed. The project has set its target for commissioning in first half on FY 2020-21.
The Foundation Stone of TVHPP was laid by Shri P M Saeed, the then Union Minister for Power, on 14 February 2005 in the august presence of Shri ND Tiwari, CM of Uttarakhand.
The power plant is located downstream on the Alaknanda River and will contain four 130 MW Pelton turbine-generators. The barrage is being constructed across the Dhauliganga River and has a catchment area of 3,100 km2.
BHEL was awarded the contract to supply four 130MW Pelton type turbines for the Tapovan Vishnugad hydroelectric power project. The contractual scope also included the testing, commissioning and operation of the generators, switchgear and excitation system. [ when? ] The project construction was awarded to a joint venture of Larsen & Toubro and Austria-based Alpine Mayreder Bau GmbH, but the contract was terminated in 2014 as geological constraints delayed tunnel construction. The tunnel project was then awarded to Hindustan Construction Company in 2016 [2]
The dam, whilst still being under construction, was severely damaged on 7 February 2021 due to a flash flood caused by the Uttarakhand glacier burst; [3] [4] the avalanche lead to large amounts of water mixed with sand & stone rushing into the Dhauliganga River, which caused severe damage to the NTPC Tapowan project. [5] [6] [7] 140 workers at the construction site died or went missing as a result of the disaster. [8]
The Tapovan Vishnugad power plant is a 520MW run-of-river project being constructed on Dhauliganga River in Chamoli District of Uttarakhand, India. The plant is expected to generate approximately 2,558GWh of electricity per year.
Construction of the hydroelectric power project began in November 2006. Power production from the plant was expected to begin in 2012, but sluggish tunnel excavation works and flash floods in June 2013 delayed its inauguration. The project is expected to commence operations in 2016.
NTPC is developing the project at an estimated cost of approximately INR 29.78bn ($677m).
The Tapovan Vishnugad hydropower project will consist of four 130MW Pelton turbines, and a barrage constructed across the Dhauliganga River. The barrage will be 200m-long and 22m-high, and will consist of four gates measuring 12m-high and 14m-wide each.
The reservoir is expected to create a catchment area of 3,100km2. It also includes an intake sill located at 5m above the riverbed, at an elevation of 1,787m.
The river water will be diverted into the head race tunnel (HRT) via a desilting basin. The HRT will have a diameter of 5.6m and a maximum discharge capacity of 122.2 m3/s. The tailrace tunnel will be 493m-long and will have a diameter of 7m.
A surge tank at the end of the head race tunnel will be installed to minimise the water hammer during operation. Two pressure shafts with a diameter of 3.6m each will emanate from the surge tank. Each shaft will be bifurcated into two branches of 2.6m diameter penstock and will be to feed water into the turbine.
The Alaknanda 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 a river considered holy in Hinduism. In hydrology, the Alaknanda is considered the source stream of the Ganges on account of its greater length and discharge; while, in Hindu tradition and culture, the other headstream, the Bhagirathi, is considered the source stream.
The Dhauliganga is a turbulent Himalayan river which rises in the border regions of India and China and flows south into the Garhwal region of Uttarakhand, India. It joins the Alaknanda, the major source stream of the Ganges river.
Loharinag Pala Hydropower 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 34 in Uttarkashi District of Uttarakhand state, India. This is about 100 kilometres (62 mi) upstream of the Tehri Dam.
NTPC Limited, formerly known as National Thermal Power Corporation, is an Indian central Public Sector Undertaking (PSU) under the ownership of the Ministry of Power and the Government of India, who is engaged in the generation of electricity and other activities. The headquarters of the PSU are situated at New Delhi. NTPC's core function is the generation and distribution of electricity to State Electricity Boards in India. The body also undertakes consultancy and turnkey project contracts that involve engineering, project management, construction management, and operation and management of power plants.
The Koldam Hydropower Station, commonly known as Koldam, is an embankment dam on the Sutlej River upstream of the Dehar Power House. It is 18 km from Bilaspur off the Chandigarh-Manali Highway (NH-21) near Barmana, Himachal Pradesh, India. The main purpose of the dam is hydroelectric power generation and it will support an 800 MW power station. The dam was constructed by NTPC Limited.
The Dhauliganga Dam was a concrete face rock and earth-fill embankment dam on the Dhauliganga River near Dharchula in Uttarakhand, India, close to the borders with Tibet and Nepal. It had very little pondage and operated as run-of-the-river. It was constructed by a joint venture of Kajima Construction Corporation, Ltd., and Daewoo Engineering & Construction with Bauer Maschinen. HRT & PH was constructed by JV of [HCC, Hindustan Construction Company] and Samsung Corporation [E&C] Group. It generates 280 MW(4x70 MW) of hydro power.
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The Duber Khwar Hydropower Plant is located near the town of Pattan in Kohistan, Khyber Pakhtunkhwa, Pakistan on the Duber Khwar River, a right bank tributary of the Indus River. It is approximately 340 km NW from Islamabad, the federal capital of Pakistan.
Golen Gol Hydropower Plant (GGHPP) is a hydroelectric power plant located on the Golen Gol River - a major left tributary of Mastuj River in Chitral District of Khyber Pakhtunkhwa province of Pakistan. The dam is located approximately 25 km from Chitral city, and 365 km from the provincial capital of Peshawar. Construction of Golen Gol project began in 2011, and was completed in January 2018.
The Bihai Power Plant is a hydroelectric power plant in Xiulin Township, Hualien County, Taiwan.
The Kohala Hydropower Project is a proposed run-of-the-river, high head project of 316 meters that will be located near Kohala, in Azad Kashmir. In 2020 the project's agreement was finalised later it was formally signed in a ceremony attended by the Pakistani Prime Minister Imran khan, and Chinese ambassador.
The Kulekhani Dam is a rock-fill dam on the Kulekhani River near Kulekhani in the Indrasarowar Rural Municipality of Makwanpur District in Bagmati Province, Nepal. The primary purpose of the dam is hydroelectric power generation and it supports the 60 MW Kulekhani I, 32 MW Kulekhani II and 14 MW Kulekhani III Hydropower Stations. Construction began in 1977 and Kulekhani I was commissioned in 1982. Kulekhani II was commissioned in 1986 and a third power station, the 14 MW Kulekhani III was expected to be commissioned in May 2015 but was delayed due to issues with the builder. The US$117.84 million project received funding from the World Bank, Kuwait Fund, UNDP, Overseas Economic Cooperation Fund and OPEC Fund. It is owned by Nepal Electricity Authority.
Lata Tapovan Hydro Electric Power Project is Run of the River based project located Approx 25 Km from Joshimath in dist. Chamoli in Uttarakhand. The Joshimath town is 230 km from Rishikesh. Capacity of project is 171 MW Underground The project has been suspended by the order of Supreme Court of India since 2014 and the matter is still pending in the court.
Tinau Hydropower Plant is a run-of-river hydro-electric plant located in Rupandehi District of Nepal. The flow from Tinau River is used to generate 1.024 MW electricity.
Kabeli B1 Hydropower Station is a 25 MW run-of-river hydro-electric plant located in Panchthar District of Nepal. The promoter and operator, with a 20% share, is Arun Kabeli Power Limited (AKPL), a subsidiary of Arun Valley Group.
The 2021 Uttarakhand flood, also known as the Chamoli disaster, began on 7 February 2021 in the environs of the Nanda Devi National Park, a UNESCO World Heritage Site in the outer Garhwal Himalayas in Uttarakhand state, India. It was caused by a large rock and ice avalanche consisting of material dislodged from Ronti peak. It caused flooding in the Chamoli district, most notably in the Rishiganga river, the Dhauliganga river, and in turn the Alaknanda—the major headstream of the Ganges. The disaster left over 200 killed or missing. Most were workers at the Tapovan dam site.
Rishiganga is a river in the Chamoli district, Uttarakhand, India. It springs from the Uttari Nanda Devi Glacier on the Nanda Devi mountain. It is also fed from the Dakshini Nanda Devi Glacier. Continuing through the Nanda Devi National Park, it flows into the Dhauliganga River near the village Rini.
Rini is a village in Chamoli district in Uttarakhand, north India. Rini is located on the river banks at the confluence of Rishi Ganga and Dhauli Ganga rivers.
The Vishnuprayag Dam lies in Chamoli district at the confluence of Alaknanda River and Dhauliganga River, in the Indian state of Uttarakhand, India.
Located at Behali village in Kullu district of Himachal Pradesh, Parbati Hydroelectric Project is a pondage scheme that involves construction of a gravity type concrete dam, procuring bolster to the hydropower potential of river Parbati, Panch Nallah, Manihar Nallah, Huria Nallah and Sainj River.