Upper Trishuli – 1 HEP, 216 MW

Upper Trishuli-1 Hydroelectric Project is a ROR scheme in Trishuli River with 216 MW installed capacity. Total annual gross energy production of UT-1 is 1533.06 GWh. The project consists of 29.5m high Dam, Underground Desander, 9.8 km long Headrace Tunnel (HRT), Surge Tank and Underground Power House as the main structures.

Currently, Contractor’s camp facilities, Bailey bridge and Access Road from Mailung to Dam Site are under construction. The Main Construction is expected to commence from September 2021 and the construction period is of 5 years. The UT-1 project has been continuously contributing to Corporate Social Responsibility (CSR) activities and has planned other several CSR, Environmental & Social activities on upcoming days.

Company Structure



Project Location



Project Access

Salient Technical Features

Capacity216 MW (72 × 3 units)
Design Discharge76 m3/s
Annual Energy1,456 GWh (PPA Contract Energy)
Special FeatureQ50 Design
Gross Head341 m
WeirL 100.9m x W 30.85m x H 29.5m
Headrace TunnelL = 9.7 km, Dia = 6.5m
PowerhouseUnderground (90 x 18.7 x 43.9 m)
SwitchgearUnderground 220 kV

Project Layout

Project Participants

Government Entities

Ministry of Energy (MoE) – The Ministry of Energy, Water Resources and Irrigation is a governmental body of Nepal that governs the development and implementation of energy including its conservation, regulation and utilization. It furthermore develops and operates electricity projects including hydropower projects. Due to the importance of water resources in Nepal, the ministry focuses on the development and utilization of hydropower.

Department of Electricity Development (DoED) – The Department is responsible for assisting the Ministry in implementation of overall government policies related to the power/electricity sector. The major functions of the Department are to ensure transparency of regulatory framework, accommodate, promote and facilitate private sector’s participation in the power sector by providing “One Window” service and license to power projects.


Project Lenders

The Project has signed Financial Agreement with nine different International Banks (IFC, ADB, AIIB, KEXIM, KSURE, CDC, FMO, PROPARCO and OFID).

Power Purchaser

Nepal Electricity Authority

Nepal Electricity Authority (NEA) was created on August 16, 1985 (Bhadra 1, 2042) under the Nepal Electricity Authority Act. 1984, through the merger of the Department of Electricity of Ministry of Water Resources, Nepal Electricity Corporation and related Development Boards. To remedy the inherent weakness associated with these fragmented electricity organizations with overlapping and duplication of works, merger of this individual organization became necessary to achieve efficiency and reliable service.

The primary objective of NEA is to generate, transmit and distribute adequate, reliable and affordable power by planning, constructing, operating and maintaining all generation, transmission and distribution facilities in Nepal’s power system both interconnected and isolated.


EPC Contractor

The main EPC Contract was signed with Doosan Heavy Industries and Construction Co. Ltd. (DHI) for the main construction of the project.