About Project

The design discharge of the Singati Khola Hydropower Project is 11.3 m3/sec .The total headrace tunnel length of the project is 5824m & 719 m of penstock pipe. The headworks & about 4.8 km length of tunnel of the project is located on the Babare VDC of Dolakha district, whereas all other project components including about 1 km tunnel lies in Lamidanda VDC. Access road to headworks passes through Laduk & Chilankha VDC. The project is a run-of-river type having the capacity of 25 MW.

Salient Features of the Project

Location of the Project27 0 44′ 00″ to 27 0 47′ 17″ N
86 0 07′ 05″ to 86 0 09′ 55″ E
Installed Capacity16.0 MW


Catchment Area at Intake189.5 km2
Catchment Area at Powerhouse231.9 km2
Design 100 yrs. Flood at Intake455 m3/sec
Design 100 yrs. Flood at PH574 m3/sec
Downstream Release308 lps
40% Dependable Flow (Q40%)11.30 m 3 /sec
Design Discharge11.3 m3/sec for From Intake to Tunnel Inlet

7.3 m3/sec for HRT, Penstock Pipe and PH Units

Power Development

Type of Power GenerationRun-of-river
Turbine Discharge7.30 m³/s
Total Gross Head268.05 m
Net Head at Design Discharge257.66 m
Average Annual Energy101.868 GWh
Dry Energy19.897 GWh
Wet Energy81.971 GWh


Type of WeirOverflow Ogee
Length of Weir38.0 m
Weir Crest LevelEL. 1246.05
Weir Foundation LevelEL. 1235.80 m

Undersluice Structure

Nos. of gates1 no.
Size of gate opening (NoxWxH)1 x 4.0 m x 4 m
Undersluice Crest levelEL. 1242.85 m

Power Intake

Intake TypeSide Intake (Orifice Type)
Intake Gates or Openings3 nos.
Gates opening size (W x H)4.0 m x 1.1 m
Intake Invert LevelEL. 1244.75 m
Total Intake Width14.0 m

Approach Canal

Section TypeRectangular
Size (W x H)13.0 m x (6.1 to 2.3) m
Length47 m
Hydraulic Slope1:1000
Gravel Trap (GT)Inbuilt Provision of GT

Desanding Basin

TypeDufour, Continuous flushing
Desanding Chambers2 nos
Size (L x B x H)- Each96 m x 9.7 m x 6.7 m
No. of Flushing Channel2 nos
Size (B xD)0.48 x 0.48 (Slope 1 in 50)
U/S transition10.0 m
D/S transition7.5 m

Head Pond

Size (W x H)13.1 m x 9 m
Length32 m
Box Conduit Invert LevelEL.1237.725 m
Operating Water LevelEL.1245.525 m

Pressure Box Conduit

Size (BxH)3m x 3.2m
Tunnel Invert LevelEL 1237.660

Headrace Tunnel

TypeInvert ‘D’ Shape (Pressure Flow)
Size (BxH)2.6 x 2.9 m
LiningFiber Shortcrete
Length5824 m
Slope of Tunnel1 in 600
Number of Adits2
Adit -1 Length295 m
Adit -2 Length65 m

Penstock Pipe

Before Double Bifurcation
TypeSteel Circular
Number1 nos.
Diameter1.85 m
Thickness12 mm to 26mm
After Double Bifurcation
TypeSteel Circular
Number2 nos.
Diameter1.3 m

Surge Shaft

Section TypeCircular
Diameter6.0 m
Height from Base31.6 m
Max. Upsurge LevelEL. 1257.525
Min. Downsurge LevelEL. 1232.525


No. of Units2
Type of TurbinePelton
Size (LxBxH)40.0 x 20.0 x 11 m
Tail Water Level (Turbine CL)EL.978.0 m


TypeRCC Box/Rectangular
Length15.0 m
Size (BxH)4.0 m x 2.60 m
Discharging RiverSingati

Transmission Line

132 kV0.2 Km long 132 kV single circuit connected to Singati sub-station
Generator Brushless synchronous, 3 phase 2×9,400 KVA 11 KV


Power Rating1 x 18,800 KVA, 132/11 KV, 50 Hz
Specification3 phase, ONAN/ ONAF Cooled
Project Cost in Mil. NPR (Excluding IDC) 2,633.173

Financial Indicators

Project Cost MNPR/MW164.573
Construction Period3 Years
IDC (MNPR)260.266
Financial Cost (MNPR)2,893.438
Financial Cost (MNPR)/MW180.840
Interest Rate10%
BC Ratio1.75
NPV (MNPR)1,586.236
Pay Back Period (years)5.61


About Us

Singati Hydro Energy Pvt. Ltd was established under the company Act 2063, in 2067 to develop the Singati Khola Hydropower Project, Dolakha.

The company was previously managed another management team. New management team is managing the company since 2069. Right now there are six members in the board of directors under the chairmanship of Mr. Batu Lamichhane.

As the company is currently developing the Singati Khola Hydropower Project (25 MW) capacity, widely known as super six project the Company using the service of other individuals, consultants, which are specialist in their field. They are available to the company as and when required for consultation, in order to ensure that the company’s progress. WELINK Associates Pvt. Ltd is our design consultant for this specific project.

Company Biography:

Name of the CompanySingati Hydro Energy  Ltd.
Type of OrganizationPublic Limited
Registered AddressDarbarmargh, 01-Kathmandu.
Office AddressDurbarmargh, Kathmandu, Nepal.

Tel : 01-4229561

email :shehydro@gmail.com

Date of RegistrationJestha-05, 2067
  Company Registration No  72937/066-067
 PAN Number 304300875
 Industry Reg. Certificate 1908/327/069-070