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KHIMTI
1 HYDROPOWER PROJECT
Project
Type and Location
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The
Project is a "run of the river" hydroelectric power generation
plant with an installed generating capacity of 60MW and
an annual production of 350 million kilowatt-hours (units)
of electrical energy. The commission of the plant increased
Nepal's installed capacity by approximately 25%.
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Tamakoshi
separating Devitar, Ramechhap and Kirne, Dolakha
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The
Khimti 1 Hydropower Project site is located in the Janakpur Zone,
Central Development Region some 100 km east of the Kathmandu.
Khimti Khola forms the boundary between Ramechhap and Dolakha
Districts.
Access to
the Project area is by the existing Jiri road and the 22 Km HMGN
district road from Nayapul to the power house site at Kirne. The
total road distance from Kathmandu is 175 Km .
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Construction |
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Headworks - Gravel flushing Gate Structure
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Construction
work on the Khimti 1 Hydropower Project was started in early
1993 by the Butwal Power Company Limited and then gained
momentum as soon as the Financial Closure occurred in June
1996. The major structures of the project include the Head-works
(intake, de-silting basin), 7900m long headrace tunnel with
4 construction adits, 1000m long penstock tunnel, 900m access
tunnel and 1470m long tailrace tunnel through and a 6,700m3
underground Power house.
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The
civil design and construction works of the project were carried
out under a contract by a consortium of NCC Tunnelling, formly
Statkraft Anlegg (Norwegian company) and Himal Hydro (Nepalese
company). A consortium of Alston Power, formly ABB Kraft and Kvarner
Energy along with Nepal Hydro & Electric (Pte) Limited carried
out the electro-mechanical works. Similarly a consortium of Statkraft
Engineering and BPC Hydroconsult had carried out the project management
on behalf of HPL.
The
Project holds the record for achieving the highest national tunneling
productivity; it has the longest headrace tunnel and penstock
in the country. It is also the first project in Nepal to implement
a Total Quality Assurance Scheme during construction. Above all,
it is the first major hydropower project in Nepal to be completed
within the original schedule despite very difficult tunneling
conditions and other problems encountered.
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