The Nyadi Hydropower Project is a run-of-river type project, located in Lamjung District of Western Development Region of Nepal. The entire component from intake to powerhouse are located within the Ward no. 6 of Marsyangdi Rural Municipality, Lamjung District.
The project has an installed capacity of 30 MW and will generate 168.55 GWh of energy annually. The gross head of the project is 333.9 m and design discharge of the project is 11.02 m3/s. The generated power will be connected to a proposed NEA’s Hub (Khudi Hub) that will be constructed at Marsyangdi corridor. An about 14m diversion dam has been designed to construct across the Nyadi River to divert water from intake to underground settling basin and conveys the water through about 4000 m long headrace tunnel and 745 m long penstock pipe. A surface powerhouse has been proposed on the right bank of Nyadi River at the Thulobeshi. About 520 m long adit tunnels which include Adit 1 (Flushing Tunnel), Adit 2 (Naiche Adit), and Penstock Tunnel will be constructed to make 4 headings for excavation and construction of the headrace tunnel. Surge shaft is designed near the end of the headrace tunnel having diameter of 5.0 m and 35 m height.
Hydro-Consult Engineering Limited (HCEL) has been appointed as the Employer’s Representative for this project. Debt arrangement for the Project has been made under the joint Consortium of member banks (Lead by Everest Bank Ltd., Co-lead Nabil Bank Ltd. and Global IME Bank Ltd, and other member banks are Himalayan Bank Ltd, Sunrise Bank Ltd, Hydropower Investment and Development Co. Ltd.).
An EPC contract for the major works (Civil, Hydro-Mechanical and Electro-Mechanical) of the project is awarded to Zhejiang Hydropower Construction & Installation Co. Ltd (ZHCIC) on January 16, 2017 and is schedule to be completed by April 5, 2020.
As of end of June 2018, the Contractor (ZHCIC) has completed the following construction works.
- Temporary site office and facilities, contractor’s camp, Army camp, Explosive Bunker house and stringing of 11 kV construction power line.
- Track opening of access road up to headwork
- Excavation of Flushing Tunnel, Naiche Adit, Ventilation Adit, Surge shaft and Diversion tunnel
- Excavation of 2753m (~71%) of headrace tunnel
- Side slope excavation at both sides in dam area up to the elevation of 1392 masl at right bank and 1373 masl at left bank.
- Construction of 148 m long concrete River Protection works near powerhouse
NHL has been carrying the works on Corporate Social Responsibility for the local people as per the demand.
Nyadi Hydropower Limited
Ganga Devi Marg – 313, Buddhanagar, Kathmandu
Tel: +977-1-4781776, 4785295
Website : http://nhl.com.np/