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info@daramkholahydro.com

Salient Features

Source River: Daram Khola
VDC: Galkot Municipality (Baglung); Musikot Municipality (Gulmi)
District: Baglung
Zone: Dhawalagiri (Baglung), Lumbini (Gulmi)
Development Region: Western
Location of the Project (To be amended after 9.6 MW license) 28° 11' 00" to 28° 12' 30" N
83° 19' 00" to 83° 21' 43" E
Type of Power Generation: Run-of-the-river
Turbine Discharge: 2 Nos. x 5.15 m³/sec
Total Gross Head: 126 m
Rated Net Head: 111.2 m
Installed Capacity: 9.6 MW
Total Energy: 56.09 GWh
Dry Energy (4 month): 9.99 GWh (17.26%)
Wet Energy (8 month): 46.10 GWh (82.74%)
Catchment Area at Intake: 7 km²
Area < 3,000 m: 240 km²
Average Annual Precipitation: 2,255 mm
Design 100-yrs Flood at Intake: 740 m³/sec
Downstream Release: 263 lps
Long-term Average Flow: 16.61 m³/sec
40 Percentile flow (Q40%): 10.30 m³/sec
Type of Weir: Free flow concrete gravity weir
Crest Length of Weir: 24 m
Crest Level of Weir: 938.50 amsl
Top Width of Weir: 2 m
Crest Length of Undersluice: 4 m
Floor elevation of Undersluice: 934 amsl
Nos. of gates in Undersluice: 2 No.
Type: Orifice
No. of Opening: 3
Crest Level: 936.0 amsl
Width × High: 3.0 m × 2.0 m (2 each)
Length: 4.5 m
Size (B × D): 7.0 m × 3.8 m
Gravel Flushing Channel: 1.0 m × 1.0 m
Type: RCC Rectangular
Length: 16.5 m
Size (B × D): 1.75 m × 1.75 m
Type: Conventional with intermittent flushing
Size of Each Chamber (L × B × H): 50.0 m × 7.5 m × 7.5 m
Particle Size to be Removed: ≥ 0.2 mm
No. of Flushing Channel: 2
Size of Flushing Pipe (Diameter): 1 m
Water Level in Head Pond: 938.0 amsl
Type: Pressurized MS Circular
Size: 2.2 m, 2.0 m and 1.8 m and 1.275 m
Length: 4226 m
Thickness: 10 mm to 18 mm
Type and Material: Non Restrained RCC Circular tank and steel pipe
Normal Water Operating Level: 938.5 amsl
Internal Diameter: 8 m for Concrete tank and 2.2 m-2.5 m dia for steel pipe
Height from its Base: 16.34 m for concrete tank
Upsurge Level: 950.2 amsl
Down Surge Level: 900.110 amsl
Type: Surface
Size (L × B × H): 35.3 m × 16.3 m × 20 m
Number of Units: 2
Rated Capacity: 2 × 4.8 MW
Tail Water Level: 811.5 amsl
Rated Speed: 600 rpm
Type: RCC Rectangular
Size (B × D): 2.9 m × 2.2 m
Length: 41.30 m
Tailrace Outlet: Daram Khola
Type: Brushless, synchronous, 3 phase
Specification: 0.8 PF, 5648 kVA, 6.6 kV, 50 Hz x 2 Nos.
Specification: LILO based (Manewa to Harihar S/C 33kV transmission line)
Length: 14 km
Project Cost (Excluding IDC): 1,742.49 million NRs.
Project Cost (Including IDC): 1,872.49 million NRs.
Financial Cost per MW: 195.05 million NRs.
Interest Rate: 9% (revision required)
FIRR: 13.25% (revision required)
NPV: 445.95 million NRs. (revision required)
Project Completion: 29ᵗʰ Poush, 2081
Project Duration: 24 months