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KATHMANDU UNIVERSITY

DEPARTMENT OF CIVIL AND GEOMATICS ENGINEERING

Proposal report on

SUNKOSHI POIOYHYLROJHOY RCRJORPORDWDRORDYHJ (Hydropower Engineering II)

Submitted By:

Swadesh Khatri(27), Pukar Raj Neupane(36),

Kanchan Niroula(37), Saurav Niroula(38), Kantish Sharma(64),

Ajay Gelal(68).

Submitted to:

Prof. Dr. Ing. Ramesh K. Maskey

ASSOCIATE DEAN

SCHOOL OF ENGINEERING

Submitted on:

4/9/2014

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Submitted on:

4/9/2014,

The Project Supervisor,

Prof. Dr. Ing. Ramesh Kumar Maskey,

Associate Dean, School of Engineering,

Kathmandu University.

SUBJECT: APPROVAL FOR THE PROPOSAL

Dear Sir,

Submitted for your review is our proposal for a Sunkoshi Hydropower Project

Rehabilitation, this document is submitted to partially fulfill the requirement of

Engineering Project Work of 4th year 1st semester.

Within this document you will find the following materials:

1. Introduction

2. Objective

3. Rationale

4. Methodology

5. Current Scenarios and some problems

6. Conclusion

7. References

We do hope that you will find our proposal sound and will favor us with positive

response by allowing us to go there on our own risk.

Yours Sincerely,

The Project Team

Enclosure: Proposal

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Contents INTRODUCTION ........................................................................................................................................ 4

OBJECTIVES ............................................................................................................................................... 4

RATIONALE ................................................................................................................................................ 4

METHODOLOGY ....................................................................................................................................... 5

CURRENT SCENARIO AND SOME PROBLEMS ................................................................................... 5

CONCLUSION ............................................................................................................................................. 5

REFERENCES ............................................................................................................................................. 5

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TIRTNUDORTNI Sunkoshi Hydropower Station, located 81 km east from Kathmandu on the upper reach of Sunkoshi river in Sindhupalchowk district, is a run-of-river type power station with an installed capacity of 10.05 MW (3 X 3.35 MW).It consist of three main parts, the headworks area, the canal and the powerhouse area. The power house was commissioned in January 1972 with the friendly cooperation of the Water Conservancy, Electric Power Ministry of the People's Republic of China and the Government of Nepal. This power station is presently at the centre stage specially in the evacuation of power from Sunkoshi Small Hydropower station (2.6 MW), Chaku Khola small Hydropower Station (1.6 MW) and other potential hydropower projects in its vicinity. The interconnection of these hydropower projects with the INPS is through 6.3/66 kV, 6.3 x2 MVA power transformers located at its 66 kV switchyard. Considering the evacuation of power at Sunkoshi corridor, which otherwise may severely overload the existing power transformers, NEA, Grid Operation Department has proposed the construction of 66 kV bay, an extension of the existing 66kV switchyard.

NEVBORTJBO To study the present condition of the project and examine the functionality of its

components.

To suggest the necessary modifications and estimate necessary cost in the

design for the rehabilitation, upgradation and modernization of project.

To investigate whether the blockage can be used to increase the head, if it cant

be cleared.

RATIONALE

The present condition of the country is lack of electricity and excessive loadshedding.

Also the blockage in the Sunkoshi river has caused Sanima HP nonfunctioning as well

as Sunkoshi HP to be stopped for safety consideration until (31/08/2014). This has

created problem over problems. Sunkoshi HPP has much great values in present

context and our country cannot afford to lose 10.05MW power in a condition of energy

crisis. Now it started generation from one unit after 30 days ( 31/08/2014) due

to massive landslide at Jure on 2nd August 2014 which swept away two gates of 10

MW Sunkoshi Power House headworks. The technology and the equipment used in this

projects are old as well as affected by landslide, which can either be replaced by new

technology and more efficient equipment or maintained in various ways thereby

achieving more benefits at low effort. Thus rehabilitation and modification of existing

project to utilize its maximum benefit is a major concern.

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METHODOLOGY

Desk Study

Desk study covers various literature reviews, project planning, etc. Require

information will be gathered via various sources and results from it will be

implemented at various steps of our project implementation.

Consultation and field visits

After consulting with our faculties, frneids, local people and from the substantial

information gathered from the desk study we will be visiting the sites to carry out

the project.

Design

Based on our survey and requirements we will be designing various structures

for improving the capacity and efficiency. Generally it includes increasing the

discharge, reservoir capacity, decreasing the sediment erosion etc.

Estimation

Estimation of the designed structure will be done and the overall cost for

rehabilitating the project will be taken out.

OmttrorsCero tdns oisCnurs tnerruC Sunkoshi HEP which has capacity of 10.05 MW had been stopped until

(31/08/2014) due to massive landslide at Jure on 2nd August 2014. Now it has started

generation but not as its capacity before. Two gates of headworks have been swept

away and has to be reconstructed. The situation is not stable and various unseen

damages may be there which are to be investigated.

CONCLUSION

Thus completion of this project would be helpful for modernization of Sunkoshi HEP and

provide new ideas for rehabilitation, maintenance and operation.

REFERENCES

http://megasushilk.blogspot.com/2012/05/sunkoshi-hydro-power-station-hydropower.html

(2012-2013). Annual Report Of NEA. Kathmandu.

Nepal Electricity Authority. (n.d.). Retrieved August 28, 2014, from www.nea.com.np