• Task: Survey Optmization study deatiled feasiblity study Tender documents detailed engineering design IEE reports Structural desing including Reinforcement detailing

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• Capacity: 5.2 MW

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• Status: Completed

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Salient features:as per Feasibility Study Report, 2009
Location	:	Junbesi Khola, Beni VDC, Solukhumbu District, Sagarmatha Zone, Eastern development region of Nepal
Latitude	:	27o 33′ 15″ N to 27o 35′ 08″ N
Longitude	:	86o 32′ 40″ E to 86o 34′ 29″ E.
Geology
Region	:	High Himalayan Crystalline Zone
Rock composed	:	Gneiss, schist, schistose phyllite and quartzite
Geotechnical zoning	:	Fair to good
Hydrology
Catchment area	:	66.80 km2
90% firm flow in the driest month	:	1.31 m3/sec
Design flow (Q45)	:	2.99 m3/sec
Flood 1 in 100 years	:	218 m3/sec
Weir
Type	:	Boulder lined
Length	:	18.04m
Crest level	:	2655.50 masl
Intake
Type	:	Side intake
Number of orifice	:	2
Orifice Size	:	2.00 x 1.00 m (w x h)
Sill level upper orifice	:	2655 masl
Sill level bottom orifice	:	2654 masl
Gravel Trap
Type	:	Surface
Length	:	5.70 m (including transition)
Width	:	4.60 m
Height	:	4.5 m
Normal water level	:	2654.35 masl
Spillway level	:	2655.00 masl
Gravel Flushing Canal
Type	:	Surface
Length	:	40.50 m
Breadth	:	1.40 m
Height	:	2.00 m
Number of gates	:	2 nos.
Canal from Gravel Trap to Settling Basin
Type	:	RCC rectangular culvert
Length	:	11.32 m
Bottom width	:	4.60 m
Height	:	1.00 m
Settling Basin
Type	:	Surface
Size	:	47.10 x 11.10 x 4.23m (l x b x h)
No. of chambers	:	2
Normal water level	:	2654.14 masl
No. of flushing channel	:	2
Sediment Flushing Channel
Type	:	Surface
Length	:	13.15m
Breadth	:	1.20m
Height	:	1.00m
No. of gates	:	2
Headrace Pipe
Material	:	Steel
Length	:	2983.8 m
Internal diameter	:	1500 mm
Thickness	:	8 mm
Saddle supports	:	234 nos.
Anchor blocks	:	37 nos.
Forebay
Type	:	Semi surface RCC rectangular tank
Width	:	11.50 m
Length	:	11.50 m
Height	:	3.00 m
Balancing Tank
Type	:	Surface RCC rectangular tank
Width	:	9.00 m
Length	:	9.00 m
Height	:	3.00 m
Penstock Pipe
Material	:	Steel
Length	:	438.6 m
Internal diameter	:	1500 mm
Thickness	:	8-28 mm
Anchor blocks	:	46 nos.
Saddle supports	:	234 nos.
Y-Bends	:	1 no.
Branching	:	2 pipes of 950 mm internal diameter, 10.30 m long
Powerhouse
Type	:	Surface
Length	:	23.00m
Breadth	:	10.50m
Height	:	12.00m (from foundation level)
Number of generating units	:	2 (Two) each 2.6 MW
Turbine type	:	Horizontal Axis Pelton Turbine
Installed capacity	:	5.2 MW
Turbine level	:	2434.00 masl
Tailrace
Type	:	Rectangular box closed duct and open channel
Length of closed duct	:	31.80 m
Transmission Facilities
Transmission line Length	:	9 km from Powerhouse to to proposed Salleri Sub-station
Voltage level	:	33 KV
Power and Energy
Gross Head	:	221.5 m
Net Head at design discharge	:	212.62m
Installed Capacity	:	5.2 MW
Gross Annual Energy	:	34.55 GWh
Net Annual energy	:	32.30 GWh
Wet Energy	:	25.66 GWh
Dry Energy	:	6.64 GWh
Access road
Length	:	9.00 Km (Upgrading)
Financial Indicators:
Energy rate, NPR/KWh	:	NPR 4.62/KWh at base year** and 3% escalation up to 9 times from generation year (From the dry season rate of NPR7.0 and wet season rate of NPR 4.0)
Base Case:
Benefit Cost ratio (B/C ratio)	:	1.22
Internal Rate of Return, (IRR)	:	14.00%
Return on Equity (FIRR, 70/30 ratio)	:	17.25%
Net Present worth, (NPV, at 10% discount rate)	:	242 MNPR
Project Development Cost	:	838 MNPR
Cost per kW, USD/kW (at 1 USD=78 NPR)	:	2066.00 USD/KW