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 Project | 27 0 44′ 00″ to 27 0 47′ 17″ N
86 0 07′ 05″ to 86 0 09′ 55″ E |
| Installed Capacity | 16.0 MW |
Hydrology
| Catchment Area at Intake | 189.5 km2 |
| Catchment Area at Powerhouse | 231.9 km2 |
| Design 100 yrs. Flood at Intake | 455 m3/sec |
| Design 100 yrs. Flood at PH | 574 m3/sec |
| Downstream Release | 308 lps |
| 40% Dependable Flow (Q40%) | 11.30 m 3 /sec |
| Design Discharge | 11.3 m3/sec for From Intake to Tunnel Inlet 7.3 m3/sec for HRT, Penstock Pipe and PH Units |
Power Development
| Type of Power Generation | Run-of-river |
| Turbine Discharge | 7.30 m³/s |
| Total Gross Head | 268.05 m |
| Net Head at Design Discharge | 257.66 m |
| Average Annual Energy | 101.868 GWh |
| Dry Energy | 19.897 GWh |
| Wet Energy | 81.971 GWh |
Weir
| Type of Weir | Overflow Ogee |
| Length of Weir | 38.0 m |
| Weir Crest Level | EL. 1246.05 |
| Weir Foundation Level | EL. 1235.80 m |
Undersluice Structure
| Nos. of gates | 1 no. |
| Size of gate opening (NoxWxH) | 1 x 4.0 m x 4 m |
| Undersluice Crest level | EL. 1242.85 m |
Power Intake
| Intake Type | Side Intake (Orifice Type) |
| Intake Gates or Openings | 3 nos. |
| Gates opening size (W x H) | 4.0 m x 1.1 m |
| Intake Invert Level | EL. 1244.75 m |
| Total Intake Width | 14.0 m |
Approach Canal
| Number | single |
| Section Type | Rectangular |
| Size (W x H) | 13.0 m x (6.1 to 2.3) m |
| Length | 47 m |
| Hydraulic Slope | 1:1000 |
| Gravel Trap (GT) | Inbuilt Provision of GT |
Desanding Basin
| Type | Dufour, Continuous flushing |
| Desanding Chambers | 2 nos |
| Size (L x B x H)- Each | 96 m x 9.7 m x 6.7 m |
| No. of Flushing Channel | 2 nos |
| Size (B xD) | 0.48 x 0.48 (Slope 1 in 50) |
| U/S transition | 10.0 m |
| D/S transition | 7.5 m |
Head Pond
| Section | Rectangular |
| Size (W x H) | 13.1 m x 9 m |
| Length | 32 m |
| Box Conduit Invert Level | EL.1237.725 m |
| Operating Water Level | EL.1245.525 m |
Pressure Box Conduit
| Type | RCC |
| Size (BxH) | 3m x 3.2m |
| Length | 65m |
| Tunnel Invert Level | EL 1237.660 |
Headrace Tunnel
| Type | Invert ‘D’ Shape (Pressure Flow) |
| Size (BxH) | 2.6 x 2.9 m |
| Lining | Fiber Shortcrete |
| Length | 5824 m |
| Slope of Tunnel | 1 in 600 |
| Number of Adits | 2 |
| Adit -1 Length | 295 m |
| Adit -2 Length | 65 m |
Penstock Pipe
| Before Double Bifurcation |
| Type | Steel Circular |
| Number | 1 nos. |
| Diameter | 1.85 m |
| Length | 657.0m |
| Thickness | 12 mm to 26mm |
| After Double Bifurcation |
| Type | Steel Circular |
| Number | 2 nos. |
| Diameter | 1.3 m |
| Length | 42.0m |
| Thickness | 26mm |
Surge Shaft
| Section Type | Circular |
| Diameter | 6.0 m |
| Height from Base | 31.6 m |
| Max. Upsurge Level | EL. 1257.525 |
| Min. Downsurge Level | EL. 1232.525 |
Powerhouse
| Type | Surface |
| No. of Units | 2 |
| Type of Turbine | Pelton |
| Size (LxBxH) | 40.0 x 20.0 x 11 m |
| Tail Water Level (Turbine CL) | EL.978.0 m |
Tailrace
| Type | RCC Box/Rectangular |
| Length | 15.0 m |
| Size (BxH) | 4.0 m x 2.60 m |
| Discharging River | Singati |
Transmission Line
| 132 kV | 0.2 Km long 132 kV single circuit connected to Singati sub-station |
| Generator | Brushless synchronous, 3 phase 2×9,400 KVA 11 KV |
Transformer
| Power Rating | 1 x 18,800 KVA, 132/11 KV, 50 Hz |
| Specification | 3 phase, ONAN/ ONAF Cooled |
| Project Cost in Mil. NPR (Excluding IDC) | 2,633.173 |
Financial Indicators
| Project Cost MNPR/MW | 164.573 |
| Construction Period | 3 Years |
| IDC (MNPR) | 260.266 |
| Financial Cost (MNPR) | 2,893.438 |
| Financial Cost (MNPR)/MW | 180.840 |
| Interest Rate | 10% |
| IRR | 17.34% |
| BC Ratio | 1.75 |
| 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 Company | Singati Hydro Energy Ltd. |
| Type of Organization | Public Limited |
| Registered Address | Darbarmargh, 01-Kathmandu. |
| Office Address | Durbarmargh, Kathmandu, Nepal. Tel : 01-4229561 email :shehydro@gmail.com |
| Date of Registration | Jestha-05, 2067 |
| Company Registration No | 72937/066-067 |
| PAN Number | 304300875 |
| Industry Reg. Certificate | 1908/327/069-070 |
