Sawra Kuddu HEP has been contemplated as a power generation development on the Pabbar River in Shimla District (HP). The project comprises of a piano key weir, an intake structure to draw 78 cumecs discharge through three openings, surface gutter type de-silting arrangement divided into three portions, each 80 m long 19.5 m wide and 10.5 m deep for exclusion of silt particles down to 0.2 mm size. Water is further carried through water conductor system comprising 11.145 km long, 5 m diameter D-shaped Head Race Tunnel, 14 m diameter 82 m high underground restricted orifice type surge shaft, 4 m diameter steel lined pressured shaft, trifurcating in 2.30 m diameter branch shafts, to feed three 37 MW capacity each vertical axis Francis turbines, housed in an 90 m x 14 m x 39 m size underground power house cavity located on the left bank of the Pabbar river near Snail village. The project is expected to generate 386 MU in a 90% dependable year.
Capacity |
111 MW |
Design Energy (in 90% dependable year) |
386 MU |
Design Head |
182.48 m |
Diversion Structure |
P K Wier type with 5 nos. gate (8.20m X 6.30m each) |
Head Race Tunnel |
11232 m long, 5 m dia, D- Shaped. |
Penstock/Pressure shaft |
Steel lined (Underground), Circular Shape 1 No. Main PS (4.0m dia), 3 Nos.Branch PS (2.30m dia) |
Power House |
Underground, 3 Nos. Vertical axis Francis Turbine with generating units of 37 MW each. |
Village |
Sawra |
Tehsil |
Rohru |
District |
Shimla |
State |
Himachal Pradesh |