Upper Ingwa Khola hydropower project (9.7 MW)
Upper Ingwa Hydroelectric Project is a runoff the river type hydropower project situated at Ankhop VDC of Taplejung District of Province No. 1. The installed capacity of the project is 9.7 MW and contract energy is 65.73 GWh. of which 24.9 Wh. (37.88%) is the dry energy and  40.83 GWh. (62.12%) is the wet energy. The objective of this project is to generate electricity power and sell the energy to the national grid under a power purchase agreement signed between Nepal Electricity Authority (NEA) and the company. NEA is the sole government authority to purchase the power from this project. The power generated from this project shall be evacuated to the National Grid via Amarpur Substation under Mechi Corridor. This project will help to reduce load shedding in the Eastern Province-1 of Nepal. This is a Nepali currency denominated PPA project.
The Upper Ingwa Khola Hydroelectric Project is located on the Ingwa Khola, a tributary of the Kabeli river, in Taplejung district of Province 1 of Nepal. The project area lies just downstream of the confluence of the Phalame  Khola and Ingwa Khola within the geographical coordinates of latitude : 27 16' 46" to 27 17' 20"  North and longitude : 87 52' 44" to 87 55' 20" East. The intake and powerhouse sites lie in the Ankhop VDC at altitudes of 1085m. amsl and 885 m. amsl respectively.  The proposed dam site lies at latitude 2716' 03" N  and longitude 87 55' 02"E, Elevation 1084.50 m. The proposed powerhouse site lies at latitude 27 16' 02" N and longitude 87 51' 27"E, Elevation 888.70 m and located at about 3.04 km downstream of the dam site.
Project Images
  • Project Location:
DistrictsTaplejung & Panchthar
Head works SiteYangruk & Sidingba VDC
Powerhouse SiteSidingba VDC
geographical coordinates
Barrage27° 16' 46"N, 87°53' 23"E
Powerhouse27° 17' 20"N, 87°55' 20"E
  • General
Name of RiverIngwa Khola
Nearest TownNearest Town
Type of SchemeRun of the River
Gross Head195.8 Meters
Rated Net Head186.92 Meter
Rated Net Head186.92 Meter
installed capacity9.7 MW
energy65.73 GWh
4-Dry Months24.9 GWh(37.88%)
8-Wet Months40.83 GWh(62.12%)
  • Hydrology
Catchment Area211 ㎢
Mean Annual Discharge12.0 m3/s
Fesign Discharge6.19 m3/sec
1000 Years Flood797 m3/sec
  • Head Works
Type of Diversion Structure211 ㎢
Length of Weir12.0 m3/s
Crest Level6.19 m3/sec
Height of Overflow Weir797 m3/sec
Number of Under sluice gates2
Type of GateVertical Gate
Size of Gate5m * 2m
  • Intake
TypeSide Intake
Size3.0m * 1.5 /2 No.
  • Intake
TypeSide Intake
Size3.0m * 1.5 /2 No.
  • Desalting Basin
TypeSurface type Hooper section
No. of Chamber2
Dimension (L*B*H)80m x 9.26 m x 3 m
Particle Size to be settled0.15mm
  • Head Race Pipe
TypeE 350 Mild steel
Length 4,500 meter
Diameter1.8 m
Thickness10mm – 16mm
  • Penstock Pipe
TypeE 250 "0" Mild Steel
Length255 meter
Diameter1.8 - 1.2 m
Thickness10mm – 16mm
  • Powerhouse
Size (L x B x H)40 m x 17.8 m x 27.6m
Turbine Center Level940 m
  • Tailrace Canal
TypeRectangular, RCC
Length30 m
Size (W x H)2.74m x 2.00 m
Tail Water LevelEL.940 m
  • Turbine
TypeHorizontal Fransis
Rated Output Capacity per Unit5 MW
  • Generator
TypeSynchronous brushless,30 AC
Rated output capacity per unit7 MW
Power factor0.85
Voltage11 KV
No. of unitsTwo (2)
  • Transformer
TypeOutdoor, Oil Immersed
Rated capacity18 MVA three phase
Voltage Ratio11/33 KV
Voltage11 KV
  • Transmission Line
Voltage Level33 KV Double Circuit
Length (approx.)16 km
ToAmarpur Substation
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