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Upper Trishuli 1 hydroelectric project, Nepal

24th August 2018

By: Sheila Barradas

Creamer Media Research Coordinator & Senior Deputy Editor

     

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Name of the Project
Upper Trishuli 1 hydroelectric project.

Location
The project will be located in a narrow gorge on the Trishuli river, 275 m downstream of the confluence of the Langtang Khola (tributary) with the Bhote Khosi river, about 80 km to the north-east of Kathmandu, in Nepal.

Client
Nepal Water & Energy Development Company, which comprises Korea South East Power Company (50%), Daelim Industrial Co (15%) and Kyeryong Construction Industrial Co (10%).

Project Description
Upper Trishuli 1 is a proposed 216 MW run-of-river hydropower project, consisting of three 72 MW units. The project comprises a 100.9-m-wide and 29.5-m-high diversion dam.

The dam will create a small 2.1 ha impoundment and divert up to 76 m3/s of water through a powerhouse, with a 216 MW capacity, returning the water to the Trishuli river about 10.7 km downstream of the dam.

The project is designed to operate continuously as a run-of-river facility and will connect to a new Chilime–Trishuli transmission line through a 1.2-km long, high-voltage extension from the Upper Trishuli-1 take-off yard.

The transmission line is being built to link several existing and planned hydropower projects into the grid. The project will be accessed using existing public roads; however, the Nepal Water & Energy Development Company is building an 11.84 km access road on the right bank of the river to link the dam and powerhouse locations. Project construction will also require the establishment of five worker camps, four quarries, one crushing plant, three batch plants, several construction/equipment yards and nine spoil disposal areas.

The project will be developed on a build, own, operate and transfer basis under a 35-year concession agreement and sell power to State-owned power utility Nepal Electricity Authority for domestic supply under a 30-year power purchase agreement.

Potential Job Creation
The project is expected to create employment for a bout 1 090 skilled, semiskilled, and unskilled workers during peak construction.

Value
The project is estimated at $650-million.

Duration
The project is expected to be commissioned in 2023.

Latest Developments
None stated.

Key Contracts and Suppliers
Daelim and Kyeryong (engineering, procurement and construction); and Korea South East Power Company (operation and maintenance).

On Budget and on Time?
Too early to state.

Contact Details for Project Information
Nepal Water & Energy Development Corporation, tel +977 1 441 2229 or email admin@nwedc.com.np.

Edited by Martin Zhuwakinyu
Creamer Media Senior Deputy Editor

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