Tamakoshi V Hydroelectric Projectतामाकोशी-५
A 99.8 MW cascade plant in Dolakha that reuses the tailrace water of the 456 MW Upper Tamakoshi project. It is being built by Tamakoshi Jalvidhyut Company Ltd, an NEA subsidiary formed in 2017, with Upper Tamakoshi Hydropower taking a 10% equity stake and Sinohydro as EPC contractor.
Installed capacity
100 MW
Run-of-river
River / basin
Tamakoshi
Koshi basin
Location
Dolakha
Bagmati
Expected online
2027
Under construction
Milestones & projected timeline
Key dates so far, with planned milestones marked. Future dates are targets from the developer or government and frequently shift.
- 3 Mar 2017
Tamakoshi Jalvidhyut Company incorporated (NEA subsidiary)
- 2018
Preliminary works began on the cascade project
- 2023
Sinohydro selected as EPC contractor (~US$165 million)
Location
Approximate dam-area location on OpenStreetMap — precise to the district and river reach, not the exact structure.
Tamakoshi V Hydroelectric Project: key facts
Quick answers on capacity, river, developer, status and commissioning, drawn from the sourced data above.
What is the capacity of the Tamakoshi V Hydroelectric Project?+
The Tamakoshi V Hydroelectric Project has an installed capacity of 100 MW. It is a run-of-river hydropower scheme.
Which river is the Tamakoshi V Hydroelectric Project on?+
The project is on the Tamakoshi River, part of Nepal's Koshi basin, in Dolakha district, Bagmati Province.
Who is developing the Tamakoshi V Hydroelectric Project?+
The Tamakoshi V Hydroelectric Project is developed by Tamakoshi Jalvidhyut Company Ltd (NEA subsidiary) (nea subsidiary).
What is the status of the Tamakoshi V Hydroelectric Project?+
As of mid-2026 the project is under construction.
When is the Tamakoshi V Hydroelectric Project expected to be commissioned?+
The Tamakoshi V Hydroelectric Project is expected to be commissioned around 2027, though dates for projects under development frequently shift.
Sources & data note
Figures for Tamakoshi V Hydroelectric Project are compiled from the sources below and cross-checked where possible. Status and projected dates reflect research as of mid-2026 and may change as the project progresses. The map location is an approximate dam-area estimate. Commentary is Amarnepal's own.