Project in brief
Located at a distance of 700 Km northeast of Kathmandu, Middle Mewa HPP is one of the very few Peaking Run of River (PROR) type projects in Nepal. The project is proposed in Mewa river in Taplejung District of eastern Nepal. The project shall utilize the design discharge of 18.76 m3/s to generate 73.5 MW of electricity with daily peaking of 6 hours. The project is accessible through a 32 km of access road from Banande Bazar located at Mechi Highway.
Project Details
- Project Name : Middle Mewa Hydropower Project
- Type of Scheme : Peaking Run-of-River (PRoR)
- Installed capacity : 73.5 MW
- Project Location : Mikhwa Khola & Meringden R. Municipality, Taplejung
- Power Evacuation to: Dhungesanghu/ Hangpang Substation (Approx. 14 km from Powerhouse)
Salient Features
- Gross Head : 471.47 m
- Net Rated Head : 452.45 m
- Design Discharge : 18.76 m3/s
- Headrace Tunnel : 5314 m
- Net Annual Energy : 436.08 GWh
Progress Updates
Civil Works
- – Right-side dam concreting completed.
– Left side dam concreting completed.
– Gravity wall panel 1, panel 2, and Counterfort wall panel 3 concrete works completed.
– Stilling basin panel L1 and R1 concrete works completed.
– Concrete works completed at Headpond to HRT inlet area.
– Concrete, rebar, and formwork work ongoing at Settling basin, Transition culvert, and Flushing
culvert.
– Concrete work at the desander panel 2 right side slabs completed.
– High-pressure jet grouting at main Dam area, Intake, Protection walls, downstream grout walls
and settling basin completed.
– Headrace tunnel excavation works completed.
– Headrace tunnel Invert concreting completed.
– Concrete works, including contact grouting at the Surge shaft, completed.
– Concrete works at the rock trap completed.
– Concrete works at the IPT completed.
– Concrete works at the LPT and AB-4 completed; contact grouting ongoing.
Hydromechanical Works
- – All Gates and Stoplogs delivered to site except Diversion Tunnel gate.
- – Penstock pipe erection completed.
- – Bulkhead gate erection completed at HRT.
- – Gates and Stoplogs along with hoisting system installation ongoing at Headpond.
- – Manufacturing and Inspection of TRCM completed.
Electromechanical Works
- – Firefighting system installation ongoing.
- – Erection works ongoing at Dhungesanghu Substation.
- – Cable termination works ongoing
- – Equipment preservation works ongoing.
Transmission Line Works
- – All materials delivered to site.
- – Tower foundation completed for all towers.
- – Conductor stringing ongoing.
Gallery
