Shongtong Karchham Hydro Electric Project, a run-of-river scheme, on the river Satluj in Distt. Kinnaur of HP, envisages construction of 102.50 m long diversion barrage, near village Powari, to divert 406 cumecs discharge to four sedimentation chambers, each 300 m long. Water from sedimentation chambers is further carried through water conductor system comprising 8020 m long 10.00 m diameter circular HRT, terminating in 39.50 m diameter surge shaft and three 5.10 m diameter steel lined (each 211.00 m long) pressure shafts, to feed three vertical axis Francis Turbines, housed in an underground powerhouse, located on the left bank of the river Satluj near village Ralli, to generate 450 MW of power.
The project is expected to generate 1593.93 MU in a 90% dependable year.
| Capacity |
450 MW |
| Design Energy (in 90% dependable year) |
1593.93 MU |
| Gross Head |
128.57 m |
| Diversion Structure |
Diversion Gated Barrage |
| Head Race Tunnel |
7712.70m long, Circular with dia 10.50 m |
| Penstock/Pressure shaft |
Steel lined (Underground), Circular Shape 3 Nos. Main PS (5.0m dia) |
| Power House |
3 Nos. Vertical axis Francis Turbine with generating units of 150 MW each. |
| Village |
Powari, Ralli |
| Tehsil |
Reckong Peo |
| District |
Kinnaur |
| State |
Himachal Pradesh |