| Jorethang Loop Hydroelectric project | |
|---|---|
 
Location in Sikkim
3km
Power House
Dam
Jorethang Loop HEP | |
| Official name | Jorethang Loop Hydroelectric project |
| Location | Sikkim, India |
| Coordinates | 27°9′36″N 88°17′31″E / 27.16000°N 88.29194°E / 27.16000; 88.29194 |
| Opening date | 26 September 2015 |
| Construction cost | Rs. 1,182 crore |
| Owner(s) | Government of India |
| Operator(s) | Sikkim Renewable Energy Development Agency |
| Dam and spillways | |
| Type of dam | Concrete Gravity |
| Impounds | Rangit River |
| Height | 17 metres (56 ft) |
| Length | 108 metres (354 ft) |
| Spillway capacity | m³/s |
| Reservoir | |
| Surface area | 14.489 hectares (35.80 acres) |
| Power Station | |
| Commission date | 29 October 2015 |
| Type | Run-of-the-river |
| Turbines | 2×48 MW |
| Installed capacity | 96MW |
| Annual generation | 444.03 GWh |
Jorethang Loop Hydroelectric project is a 96 megawatts (129,000 hp), run-of-the-river hydroelectric power station on the Rangit riverinSouth Sikkim districtofSikkim 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]
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]
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]
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