Kasuwa Khola Hydropower Project is developed by Kasuwa Khola Hydropower Ltd (KKHPL). The project is a Run of River type Hydropower project with generation capacity of 45 MW. The proponent has acquired Electricity Generation Survey License of the project from Development of Electricity Development (DOED) / Ministry of Energy (MOE) / Government of Nepal (GON).
General
Type of power plant Peaking Run-of- river
Gross head 555.00 m
Net head 536.60 m
Design flow 9.90 m3/s
Location Sankhuwasabha, Makalu Gaunpalika
Hydrology
Catchment area at intake site including Hiwa Khola 86.50 km2
Design Discharge 9.90 m3/s
Downstream release 0.22 m3/s
Design flood at intake (1 in 100 Years) 333 m3/s
Diversion Weir
Type Concrete overflow
Length 17.70 m
Height 7.0 m above US apron
Crest elevation 1365.00 masl
Undersluice 2 numbers, 4 x 4m opening
Intake Side intake, 4.15 x 1.8 m (2 Nos.)
Desander Double bay, 9m X 4.5 m, 80 m long
Headrace Tunnel
Type Inverted D- shaped
Size 3.50 m x 3.75 m (finished)
Length 3086.0 m
Surge Shaft
Type Restricted orifice, cylindrical, top exposed
Internal diameter 5 m
Height 37 m
Penstock 996.0 m long Steel penstock 2.0 m diameter
Drop Shaft 154 m long steel lined 1.8 m diameter
Inclined Shaft 900 m long steel lined 1.8 m diameter
Powerhouse
Type Underground
Size 48x14x15 m Machine hall
Tailrace 3.5 m x 3.5 m Tunnel, 347m long
Turbines
Type 3 nos. Vertical axis identical 4 nozzle Pelton Turbines, 750 rpm
Turbine rated output (power on shaft) 15.70 MW x 3
Turbine efficiency 90%
Axis level 810.0 masl
Generators
Type 18MVA Synchronous, 3 phase, 11 kV, P.F. 0.85
Transformer 18 MVA Three 3-Phase, 11 / 132 kV
Transmission line about 36 km 132 KV Single Circuit, to proposed Tumlingtar Substation