Tanahu Hydropower Projectतनहुँ जलविद्युत आयोजना
A 140 MW peaking storage project on the Seti River in Tanahun, built by Tanahu Hydropower Ltd (an NEA subsidiary) with ADB, JICA and EIB financing. It features a ~140 m dam and is one of Nepal's few large reservoir projects, designed to supply dry-season peak power. By August 2025 main-dam concreting had begun and Package 2 was about 55% complete.
Installed capacity
140 MW
Reservoir
River / basin
Seti
Gandaki basin
Location
Tanahun
Gandaki
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.
- 2013
Loan agreements signed (ADB / JICA / EIB)
- 2023
Access tunnel completed
- Mar 2025
First concrete poured in main dam
- 2027Planned
Expected commissioning of Package 1
Location
Approximate dam-area location on OpenStreetMap — precise to the district and river reach, not the exact structure.
Tanahu Hydropower Project: key facts
Quick answers on capacity, river, developer, status and commissioning, drawn from the sourced data above.
What is the capacity of the Tanahu Hydropower Project?+
The Tanahu Hydropower Project has an installed capacity of 140 MW. It is a reservoir hydropower scheme.
Which river is the Tanahu Hydropower Project on?+
The project is on the Seti River, part of Nepal's Gandaki basin, in Tanahun district, Gandaki Province.
Who is developing the Tanahu Hydropower Project?+
The Tanahu Hydropower Project is developed by Tanahu Hydropower Ltd (NEA subsidiary) (nea subsidiary), with ADB, JICA, EIB, Abu Dhabi Fund financing.
What is the status of the Tanahu Hydropower Project?+
As of mid-2026 the project is under construction.
When is the Tanahu Hydropower Project expected to be commissioned?+
The Tanahu Hydropower Project is expected to be commissioned around 2027, though dates for projects under development frequently shift.
Sources & data note
Figures for Tanahu Hydropower 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.