Lower Seti (Tanahu) Hydroelectric Projectतल्लो सेती (तनहुँ)
A proposed 126 MW project on the Seti in Tanahun, downstream of the under-construction 140 MW Tanahu reservoir scheme, developed by Tanahu Hydropower Ltd with Asian Development Bank support. Construction is expected around 2029 with operation targeted for the early 2030s.
Installed capacity
126 MW
Run-of-river
River / basin
Seti
Gandaki basin
Location
Tanahun
Gandaki
Expected online
TBD
Proposed / under development
Milestones & projected timeline
Key dates so far, with planned milestones marked. Future dates are targets from the developer or government and frequently shift.
- ~2029
Construction expected to begin
- ~2032
Targeted commercial operation
Location
Approximate dam-area location on OpenStreetMap — precise to the district and river reach, not the exact structure.
Lower Seti (Tanahu) 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 Lower Seti (Tanahu) Hydroelectric Project?+
The Lower Seti (Tanahu) Hydroelectric Project has an installed capacity of 126 MW. It is a run-of-river hydropower scheme.
Which river is the Lower Seti (Tanahu) Hydroelectric Project on?+
The project is on the Seti River, part of Nepal's Gandaki basin, in Tanahun district, Gandaki Province.
Who is developing the Lower Seti (Tanahu) Hydroelectric Project?+
The Lower Seti (Tanahu) Hydroelectric Project is developed by Tanahu Hydropower Ltd (government (nea)).
What is the status of the Lower Seti (Tanahu) Hydroelectric Project?+
As of mid-2026 the project is proposed / under development. Planning; downstream of the 140 MW Tanahu reservoir project
Sources & data note
Figures for Lower Seti (Tanahu) 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.