Jorethang Loop Hydroelectric project

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Jorethang Loop Hydroelectric project
Jorethang Loop Hydroelectric project is located in Sikkim
Jorethang Loop Hydroelectric project
Location in Sikkim
Jorethang Loop HEP
Official nameJorethang Loop Hydroelectric project
LocationSikkim, India
Coordinates27°9′36″N 88°17′31″E / 27.16000°N 88.29194°E / 27.16000; 88.29194Coordinates: 27°9′36″N 88°17′31″E / 27.16000°N 88.29194°E / 27.16000; 88.29194
Opening date26 September 2015
Construction costRs. 1,182 crore
Owner(s)Government of India
Operator(s)Sikkim Renewable Energy Development Agency
Dam and spillways
Type of damConcrete Gravity
ImpoundsRangit River
Height17 metres (56 ft)
Length108 metres (354 ft)
Spillway capacitym³/s
Reservoir
Surface area14.489 hectares (35.80 acres)
Power Station
Commission date29 October 2015
TypeRun-of-the-river
Turbines2×48 MW
Installed capacity96 MW
Annual generation444.03 GWh

Jorethang Loop Hydroelectric project is a 96 megawatts (129,000 hp), run-of-the-river hydroelectric power station on the Rangit river in South Sikkim district of Sikkim state in India.[1] The dam is located near village Piple and power station is located about 13 km downstream near village Majhitar. Dans Energy Private Limited was awarded contract for construction of the project. The project was officially inaugurated on 29 October 2015. The project was built at a cost of Rs 1,182 crores.[2][3][4]

Powerhouse[edit]

The dam is located about 5 km upstream from Jorethang and powerhouse is located about 13 km downstream from dam site at 27°06′29″N 88°19′27″E / 27.10806°N 88.32417°E / 27.10806; 88.32417 (Jorethang Loop HEP). Water is diverted from barrage through 6.8 km long head race tunnel, through a surge shaft of 25 m dia. and pressure shaft to power house near village Majitar. The powerhouse has 2 x 48.75 MW vertical shaft type Francis turbines that generate 2x48 MW power. The water flow is discharged back into Rangit river through a 40m tall race channel. With installed capacity is of 96 MW project is expected to generate approximately 444.03 GWh per annum.[1][5]

Power transmission[edit]

The electricity generated is connected to switchyard near powerhouse and evacuated through double circuit 220 kV transmission line to the New Melli 220KV switching substation. New Melli sub station is located about 10 km away from powerhouse and connected to Eastern Regional Grid.[1][6]

See also[edit]

References[edit]

  1. 1.0 1.1 1.2 "Monitoring report - Jorethang Loop Hydroelectric Project, India". Clean Development Mechanism. Retrieved 15 January 2019.
  2. "Jorethang Loop Hydro-Electric Power (Sikkim) Project". Retrieved 15 January 2019.
  3. "96 Mw Jorethang Loop project commissioned". NE live. 30 October 2019. Retrieved 15 January 2019.
  4. "Sikkim's second private HEP launched". United News of India (UNI). 24 September 2015. Retrieved 15 January 2019.
  5. "Jorethang Loop Hydroelectric Project, India". United Nations Carbon offset platform. Retrieved 15 January 2019.
  6. "Power Transmission system from Sikkim" (PDF). Ministry of Environment, Forest and Climate Change - Government of India. Retrieved 15 January 2019.

External links[edit]


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