The Dharasu Power Station is a run-of-the-river hydroelectric power station on the

Bhagirathi River 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 the holy river of Hinduism. In the Hindu f ...

located at

Dharasu Dharasu is a town, near Uttarkashi in Uttarkashi district, Uttarakhand, India. Geography It is located at an elevation of 1339 m above MSL. The Dharasu Power Station is located there, on the Bhagirathi River The Bhāgīrathī (Pron: /ˌ ...

in Uttarkashi district,

Uttarakhand Uttarakhand (, ), also known as Uttaranchal ( ; List of renamed places in India, the official name until 2007), is a States and union territories of India, state in North India, northern India. The state is bordered by Himachal Pradesh to the n ...

India India, officially the Republic of India, is a country in South Asia. It is the List of countries and dependencies by area, seventh-largest country by area; the List of countries by population (United Nations), most populous country since ...

. The power station was commissioned in 2008 and has a 304 MW capacity.

Background

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 Uttarkashi is a town and the headquarters of Uttarkashi district in Uttarakhand, India. Geography Uttarkashi is located at . It has an average elevation of . Demographics India census A census (from Latin ''censere'', 'to assess') is t ...

at was completed. Dharasu, the second stage was halted in 1990 due to funding issues and was not restarted until 2002. The power station was eventually completed and commissioned by 2008.

Design

Water supplied to the power station is first diverted from the Bhagirathi River into a long tunnel by the long Bhali (Joshiyara) Dam located upstream near Bhali at . The difference in elevation between the barrage and the power station affords a design

hydraulic head Hydraulic head or piezometric head is a measurement related to liquid pressure (normalized by specific weight) and the liquid elevation above a vertical datum., 410 pages. See pp. 43–44., 650 pages. See p. 22, eq.3.2a. It is usually meas ...

of and gross head of . The water powers four 76 MW

Francis turbine The Francis turbine is a type of water turbine. It is an inward-flow reaction turbine that combines radial and axial flow concepts. Francis turbines are the most common water turbine in use today, and can achieve over 95% efficiency. The pro ...

-generators before being discharged back into the river. The design discharge of the power station is .

References

{{Power Stations of Uttarakhand Energy infrastructure completed in 2008 Hydroelectric power stations in Uttarakhand Run-of-the-river power stations Uttarkashi district 2008 establishments in Uttarakhand

Background

Design

See also

References