Swet Bhairab Power Supply (P) Ltd.
Swet Bhairab Power Supply
Swet Bhairab Power Supply (P) Ltd.
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Upgrade Chokhopani
Project Name :  Upgrading of Chokhopani Hydropower Plant

Location: Chokhopani, Mustang, Nepal

Progress :  Clearance from Environment Ministry waited

Project Salient Feature

S.N. Items Description
1. Location Chokhopani, Jomsom
a) District Mustang
b) VDC Tukuche
2. Catchment Area 17.3 Sq. m
3. Discharge  
a) Design Discharge 156.19 lps ~ 160 lps
b) Minimum Discharge 141.3 lps
c) Flood Discharge 1906.25 lps
4. Hydraulic Head  
a) Gross Head 133.5 m
b) Net Head 132.63 m
5. Intake surface type
6. Headrace Canal
a) Length 838 m
b) Max. Capacity 550 lps
Trapezoidal Section-unlined  
a) Longitudinal Slope 1:600
b) Base width 0.75 m
c) Side slope 1:2
d) Existing canal depth 1.0 m
Masonry lined-Rectangular
a) Longitudinal Slope 1:600
b) Base width 1.1 m
c) Existing canal depth 1.0 m
Section through natural rock
a) Slope 1:600
b) Base width 1.1 m
c) Existing canal depth 1.0 m
7. Forebay (proposed)
a) Length 70 m
b) Breadth 40 m
c) Depth 1.25 m (active)
3.665 m (total)
d) Volume 3500 m3
8. Penstock
a) Diameter 500 mm
b) Length (4mm thick) 147 m
c) Length (5mm thick) 72 m
d) Length (6mm thick)
(Supported by stone masonry Anchor Block)
72 m
9. Power house
a) Length 2.0 m (Excluding existing PH length)
b) Breadth 7.0 m
c) Height 4.0 m
d) Turbine type Horizontal Pelton (xje-w-x50A/1*7.5)
e) No. of unit 1
10. Generator type Horizontal Synchronous generator, SFW200-6/740,50hZ
a) Type 3 phase, synchronous brush less
b) Rated output 200 kW at 0.8 p.f.lag
c) Rated speed 1000 rpm
d) No of unit 1
11. Tailrace
a) Type Rectangular Cement stone masonry
b) Length 9 m
c) Width 0.6 m
12. Switch Yard
a) Type Outdoor, step up
b) Dimension Ave. length: 8 m, Ave. width: 5m
13. Transmission Line Already exist (29 km)
14. Distribution line 28 km
15. No. of Consumers 1,312
16. Main Load centres Jomsom, Kagbeni, Tukuche, Marpha, Kobang, Larjung and Muktinath
17. Economic and Financial Indicators
a) Total capital cost NRs. 15,874,642.60
b) Operation and maintenance cost NRs. 158,746.43 per year
c) Cost per kW Installation NRs. 132,288.69 (US$ 1,787.68)
d) IRR 17.1%
e) EIRR 5.11for 10 year, 10.68 for 15th year
f) B/C ratio 1.1
f) Discount Rate 10%
g) Net Present Value +ve
h) Payback  Period  
 I.  Simple Payback Period 4.3 years
 II. Discounted Payback Period 10.8
i) Unit energy cost NRs. 5.56 (Proposed average rate for twenty five years is NRs. 7.93)
18. Construction period 9 months

* All interested Electro-mechanical manufacturers are requested to send the quotation.
hydropower, water, hydro power, wind power, hydropower resources, hydropower plants, international partners, hydropower supply
hydropower, water, hydro power, wind power, hydropower resources, hydropower plants, international partners, hydropower supply
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