Namarjun Madi Hydro Power project Himalayan Hydro Power Ltd
Namarjun Madi Hydropower Project (12 MW) is the project which is in operation since August 2015. The project is run of the river at Madi river of Kaski. For the execution of project company has entered into consortium agreement with various banks along with lead bank Janata Bank Nepal Limited.
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Kaski
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Run By Water
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Madi River
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66.342 Gwh
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63.0 m
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11,880 KW
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1024 m3/sec
Namarjun Madi Hydropower Project (12 MW) is the project which is in operation since August 2015. The project is run of the river at Madi river of Kaski. For the execution of project company has entered into consortium agreement with various banks along with lead bank Janata Bank Nepal Limited. Civil works of the project will be completed till Kartik end 2076. Installation of electromechanical equipment is ongoing in site. Power evacuation arrangement has been made with Super Madi Hydropower project (44MW) and Madhkyu Khola Hydropower Project (13 MW) and Namarjun Madi Hydropower Project (12 MW) and Upper Madi Hydro Project (25MW). Single Line Diagram Approval has been obtained from Grid Connection Department, NEA and other erection of transmission line will be completed till generation of electricity.
| Salient Features of the project | ||
| Namarjun Madi Hydropower project | ||
| 1 | Project Location | |
| Development Region | Western | |
| Zone | Gandaki | |
| District | kaski | |
| VDC | Namarjun & Sildujure | |
| Latitude | 28°16 '01"N to 28°17'43" N | |
| Longitude | 84°05'00" E to 84°06'08" E | |
| 2 | General | |
| Name of River | Madi River | |
| Nearest Town | Kaski | |
| Type of scheme | Run - of- river | |
| Gross Head | 63.0 m | |
| Capacity for PPA | 11,880 kW | |
| Average Annual Energy after Outage | 66.342 Gwh | |
| 3 | Hydrology | |
| Catchment Area | 365 km² | |
| Mean Annual Discharge | 33.95 m³/s | |
| Design Discharge | 23.75 m³/s | |
| Riparian Release | 0.72 m³/s | |
| Design Flood discharge | 1024 m³/s (100Yr. Flood ) | |
| 4 | Deversion weir | |
| Type of weir | Boulder Lined weir | |
| Length of weir | 44.0 m | |
| Height of Overflow weir | 7.0 m (including Foundation) | |
| Crest Elevation | 1012.0 m | |
| 5 | Undersluice | |
| Crest Elevation | 1006.5m | |
| Size | 2.0m x 3.5 m | |
| 6 | Intake Structure | |
| Type of Intake | Side Intake ,Orifice Type | |
| Size of Intake (w x H) | 3.0 x 1.75 m, 50 Nos | |
| Intake Sill Level | 1010.05 m | |
| 7 | Gravel Trap /Approach Canal | |
| Size of Gravel Trap (W x H) | 7.5m x 7.0 m | |
| Length of Gravel Trap | 25.0 m | |
| Spillway Length | 18.0 m | |
| Size of Approach Canal (W x H) | 6.0 x 4.75 m | |
| Length of Approach Canal | 30 m | |
| 8 | Desanding Basin | |
| Type | Conventional Flushing | |
| No of Chamber | 2 | |
| Dimension (Lx B x H ) m | 110.0 m x 110 m x 9.5 m | |
| Particle Size to be Settled | 0.2 mm | |
| 9 | Headrace Canal | |
| Type | RCC Rectangular | |
| Size | 4.4 m x 3.5 m | |
| Length | 1,248 m | |
| Longitudinal Slope | 1:1,500 | |
| 10 | Forebay | |
| Type | Surface | |
| Size (L x B x H ) | 42.0 m x 40.0 m x 3.5 m | |
| Normal Water Level | 1009.5 m | |
| 11 | Penstock | |
| Type | Steel Supported | |
| Length of Penstock Pipe Line | 144 (+11 m Bifurcated Length) | |
| Internal Diameter | 2.9 m | |
| Thickness | 12 -18 mm | |
| 12 | Powerhouse | |
| Type | Surface | |
| Dimension | 27.3 m x 22.0 m x 13.3 m | |
| Turbine Center Level | 947.9 m | |
| 13 | Tailrace Canal | |
| Type | RCC CUT & Cover | |
| Length | 85 m | |
| Size (W x H ) | 4.0 m x 1.8 m | |
| Tailrace water Level | 949.0 m | |
| 14 | Turbine | |
| Type | Francis, Vertical Axis | |
| Number | Two | |
| Rated Output Capacity per Unit | 6,250 kW | |
| Efficiency | 91.50% | |
| 15 | Governor | |
| Type | Electro- hydraulic ,PID System | |
| Adjustment for Speed Drop | Between 0 to 5% | |
| 16 | Generator | |
| Type | salient pole synchronous | |
| Rated Output Capacity per Unit | 6,000 kW | |
| Power Factor | 0.85 | |
| Voltage | 6.3 kV | |
| Frequency | 50 Hz. | |
| No of Units | Two | |
| Excitation System | Brushless | |
| Efficiency | 96.50% | |
| 17 | Transformer | |
| Type | 3 phase, Oil immersed | |
| Rated Capacity | 7,500 kVA x 2 | |
| Voltage Ratio | 6.3 /132 kV | |
| Efficiency | 99.00% | |
| 18 | Transmission Line to be Constructed by Company | |
| Voltage Level | 132 kV | |
| Length (Approx.) | 18 km | |
| From | powerhouse (HEP) | |
| To | Lekhanath | |
| Conductor | ACSR "WOLF" Double Circuit | |
| 19 | Approach Road Connection | 2.0km (New) |
| 5.0 km (Upgrading) | ||