Salient Features of Simbuwa Khola Hydroelectric Project as per Final Feasibility Report |
General |
Name of the river |
Simbuwa Khola |
Type of Project |
Run -of- river |
Project Location |
Yasang Village, Tamewa Village, Faktanglung, Rural Municipality |
District |
Taplejung |
Development Regions |
Eastern Development region |
Headwork site |
Near Yasang Village |
Latitude |
27° 30' 42'' N |
Longitude |
87° 51' 39'' E |
Power house |
Near Tamewa village |
Nearest Airport |
Suketar Airport |
Nearest Town |
Phungling bazar |
Hydrology |
Catchment Area |
246 km2 |
Average Annual Rainfall |
2220.16 mm |
Annual Average Flow |
14.76 Cumec |
Minimum Monthly Flow |
2.69Cumec |
Design Flood (100 yrs.) |
237.54Cumec |
Diversion Weir |
Type |
Broad Crested weir |
Crest Level |
EL 2335.0 m |
Length |
17 m |
Height |
5.0 m from river bed |
Under Sluice |
Location |
At left side of the Weir |
Size |
3.0 m (W) X 5.0 m (H) |
Intake |
Location |
Immediately upstream and adjacent to the Under Sluice |
Type |
Side Intake, Orifice type (RCC) |
Number, Length &Height |
2 No., 3.2m x 2.5 m |
Diversion Discharge |
9.24 cumec |
Desanding Basin |
Type |
Single chamber Hopper type |
No. of Bays |
2 |
Size |
Hydraulic Size=80.0 m (L) X 9.0 (W) X 3.2m (H), H=13.07m including storage and operation clearance |
Headrace Tunnel |
Shape |
Inverted D-Shape |
Slope |
1:1000 |
Size |
3.2 m dia. |
Length |
4392.69 m |
Surge Shaft |
Type |
Simple Cylindrical |
Size |
7.0 m dia, 24.22 m Height |
Pressure Shaft |
Size |
2m Circular shaped vertical shaft |
3.2m Inverted D-shaped Benching |
Length |
2710.42 m |
Penstock |
Size |
1.8 m penstock dia |
Powerhouse Cavern |
Location |
Left bank of Tamor river |
Type |
Underground |
Installed Capacity |
70.34 MW |
Type of Turbine |
Pelton |
Turbine central line |
EL 1446.14 m |
Size |
102.37m (L) x 14.5m (W) x 31.75m (H) |
Gross head |
888.86 m |
Design Discharge |
9.24 cumec |
Tailrace Tunnel |
Number & Type |
1No., Concrete Lined |
Dia. & Space |
3.2 m, Inverted D-shape |
Length |
422.9 m |
Transmission Line |
Length |
35.44 km |
Voltage |
132.0 kV Single circuit |
Interconnection Point |
Power House to Dhunge Sangu Sub station |
Power And Energy |
Installed Capacity (Q40) |
70.3 MW |
Annual Sellable Energy |
378.96 GWh |
Project Road |
|
29 km |
Construction Period |
|
4 years |