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. |
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