Preliminary Salient features of Mai Cascade Hydropower Project (4.5 MW)
Location |
Danabari VDC, Ilam District
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Hydrology at Intake
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Catchment area
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As per MHP
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Design Flow
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As per MHP |
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Minimum mean monthly flow
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As per MHP |
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Maximum flood flow
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As per MHP |
Proposed Structures
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Intake
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Tailrace of the Mai Hydropower Project
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- Tailrace of MHP 263.91m long, 3.5 m wide and 3.8 m depth
- Headrace Canal of MCHP length =3910.65 m.,Top width=6.8m,Bottom width=2.6m ,longitudinal slope =1:1500 ,height=2.6m
- Intake Canal of MCHP length=188.068 m , breadth=3.5m and height=3.8 m
- Flushing from headrace canal At chainage 1324m,length=109.7 m,breadth=3 m and height =3.5 m
- Stream Crossings Details
Type Rectangular(RCC),breadth=206 m and height =2.6 m
Crossing 1 12m (chainage 477)
Crossing 2 15m ( chainage 1529)
Crossing 3 15m (chainage 2389)
Crossing 4 15m ( chainage 2963)
Crossing 5 15 m (chainage 3484)
- Forebay 66.40m long, 12.80 m wide and 4.98 m depth
- Spillway at forebay 165 m long, 8 m wide and 3.2 m depth
- Penstock Pipe 66.58 m long, 2.3 m ø, 10 mm thick and 11.51m long, 1.2 4m ø, 12mm thick, 2 pipes
- Power house RCC, lenght=51.65 m ,breadth=21.87 m and height =16.18m
- Tailrace Canal length-500m , breadth=5 m and height = 2.5 m
- Turbine 2 Nos. Francis Turbines
- Transmission Line 33 KV, 3.5-4 km long
Energy:
- Gross Head 42 meters
- Installed Capacity 4500 kW
- Average Annual Energy 31.02 GWh
- Average Dry Energy 6.56 GWh
- Average Wet Energy 24.46 GWh
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