Hydropower plant in Operation
- Project ProfileProject ProfileVishnuprayag Hydro-electric Project - a run-of-the river project located across river Alaknanda in district Chamoli of Uttarakhand. The Project, utilising the waters of river Alaknanda, has an underground power station with an installed capacity of 400MW (4x100MW). It is the Group's project on Build-Own-Operate (BOO) basis.
The head works are located near Lambagarh, which is about 15 kms downstream of the holy 'Badrinath' Shrine and the power house is located near Joshimath town. The project is located in district Chamoli in the state of Uttarakhand in India. The nearest railhead is Rishikesh, which is about 280 kms from the project site. The road access to the project is through Rishikesh - Badrinath highway. The nearest airport is Dehradun, Uttarakhand.
- FeaturesFeaturesIndia’s largest Hydropower project in the private sector.With a head of 915m, the Vishnuprayag power house has the highest operating head.World’s best equipments like Pelton Impulse turbo-generators are installed to ensure on sustainable basis, highest rated output during the life of the project.
Clean power at Competitive rates.The total project cost is Rs.16940 million. The project got commissioned six months ahead of schedule.The project is designed to generate 1774.4 MU in a 90% dependable year and 1947 MU in a 50% dependable year.
- Technical InformationTechnical InformationDiversion Barrage17 m x 63 m long with three radial gates, with separate intake to power tunnel/sedimentation chambersSedimentation ChambersTwo continuously flushing desanding chambers 160-m long x 16-m wideDesigned to exclude sediments greater than 0.15 mm and aboveMaximum intake 63 cumec, maximum flushing discharge 13 cumecPower Tunnel11.343 km long, 4-m diameter horseshoe-shaped, concrete-lined power tunnelDesign Discharge 50 cumecSurge Shaft143-m high x 8-m diameter, restricted orifice type, undergroundPressure ShaftUnderground, steel lined, 1517 m length and diameter of 3.5m/3.4m/3.3m/2.5m/1.85m respectivelyPowerhouseUnderground complexMachine hall 122-m long x 18.5-m wide x 38.6-m high, with 4 x 100-MW Pelton turbo-generators, gross head 915 mTransformer gallery 103-m long x 14-m wide x 22.5-m high with single-phase power transformers and SF6 switchgearTailrace1.924 km long x 5.6-m wide x 5.7-m high D-shaped tunnel