Power Purchase Agreement (PPA)
Grid Connection Agreement
Generation License (6.3 MW)
Financial Closure
Financial Partners
Design Consultant
Financial Analyst
Sabha Khola-C Hydropower Project (SKBHP) is located in Sabhapokhari Rural Municipality of Sankhuwasabha District in the Eastern Development Region of Nepal. It is about 26 km East from Khandbari Bazaar, the Headquarter of Sankhuwasabha District.
| 1 | Project Location |
|---|---|
| Province | Province no. 1 |
| Zone | Koshi |
| District | Sankhuwasabha |
| Intake Site | Sabhapokhari Rural Municipality |
| Powerhouse Site | Sabhapokhari Rural Municipality |
| Geographical Co-ordinates | |
| Latitude | 27° 25’ 38” N to 27° 26’ 13” N |
| Longitude | 87° 18’ 44” E to 87° 19’ 43” E |
| Conservation Area | n/a |
| 2 | General |
| Name of River | Sabha Khola |
| Nearest Settlement | Barabise |
| Type of Scheme | Cascade Project of Sabha Khola B Hydropower Project, 21.5 MW |
| Gross Head | 84.00 m |
| Net rated Head | 81.84 m |
| Installed Capacity | 6300 kW |
| PPA Capacity | 6290 kW |
| Peak Hour (if P-RoR) | – |
| Additional Average Annual Energy after Outage | 13.28 GWh |
| Additional Dry Season Energy | 4.02 GWh |
| Additional Wet Season Energy | 9.26 GWh |
| 3 | Hydrology |
| Catchment Area | Total Catchment: 119.45 km2 Sabha Intake: 88.15 km2 Yaksuwa Intake: 23.81 km2 Manjuwa Intake: 7.49 km2 At powerhouse: 113.9 km2 |
| Average Annual Discharge | (Sabha Intake=7.93 m3/s Yaksuwa Intake= 2.26 m3/s Manjuwa Intake= 0.76m3/s) Design Discharge (at 40% PoE) 8.78 m3/s |
| Design Flood Discharge | For Sabha headworks: 505 m3/s For powerhouse: 662 m3/s |
| Average Annual Precipitation | Sabha Khola basin:3450 mm |
| 4 | Sabha C Headpond |
| Headpond (L x B) | 23.00 m x 6.00 m |
| Full Supply Level | 647.00 masl |
| 5 | Headrace Pipe |
| Type | Mild steel welded pipe |
| Internal Diameter | 2.40 m internal diameter |
| Length | 227.0 m |
| Nos. of Anchor Blocks | 6 nos. |
| 6 | Headrace Tunnel |
| Type | Inverted D Shaped |
| Height/Width of tunnel | 3.00 m |
| Length | 1102.00 m |
| 7 | Surge Tank/Pipe |
| Type | Surge Pipe laid on ground |
| Length of Pipe | 47.74 m |
| Diameter of Pipe | 3.00 m |
| Up Surge Level | 658.86 masl |
| Down Surge Level | 638.77 masl |
| 8 | Steel Penstock Pipe |
| Type | Mild steel welded pipe |
| Internal Diameter | 2.00 m internal diameter |
| Length | 473.40 m with branch pipe |
| Steel Thickness | 8-10 mm of E350 |
| Nos. of Anchor Blocks | 9 nos. |
| 9 | Powerhouse |
| Type | Surface with Outdoor Switchyard |
| Size (L x W) | 38.70 m x 13.60 m |
| Height | 15.90 m from machine floor level to the roof |
| Turbine Axis Level | 566.0 masl |
| 10 | Tailrace |
| Type | RCC Free Flow Rectangular Culvert type |
| Length of Tailrace | 114.40 m |
| Max Tailrace level | 563 masl |
| Size (W x D) | 3.00 m x 3.0 m |
| 11 | Turbine |
| Type | Horizontal axis Francis |
| Number | 3 nos. |
| Rated Output Capacity per unit | 2.17 MW |
| Turbine Axis Level | 566.00 masl |
| Net Head | 81.84 m |
| Discharge per Unit | 2.93 m3/s |
| Efficiency | 92% |
| 12 | Governor |
| Type | Electronic PID Control |
| Adjustment for Speed Drop | 0-10% |
| 13 | Generator |
| Type | 3-phase AC synchronous |
| Rated Output Capacity per Unit | 2.4 MVA |
| Power Factor | 0.85 |
| Generation Voltage | 6.6 kV |
| Frequency | 50 Hz |
| No of Units | 3 nos. |
| Excitation System | Brushless excitation |
| Efficiency | 97% |
| 14 | Transformer |
| Type | Outdoor step-up power transformer, Three Phase |
| Rated Capacity | 8.5 MVA |
| Voltage Levels | 132/6.6 kV (Secondary/Primary) |
| No of Units | 1 no. |
| Vector Group | YNd11 |
| Frequency | 50 Hz |
| Efficiency | 99% |
| 15 | Transmission Line |
| Voltage Level | 132 kV |
| Length | 4 km upto Sabha Khola B switchyard, and then common TL of 21.5km upto SS |
| Conductor Type | ACSR Bear, 250 mm2 |
| From | Power plant switchyard (switching station) to Tumlingtar SS |
| To | 220/132/33 kV Tumlingtar substation |
