Arun-4 Hydroelectric Projectअरुण-४ जलविद्युत आयोजना
A 490 MW project on the Arun River in Sankhuwasabha to be developed as a JV between India's SJVN (majority) and NEA, expected to generate ~2,100 GWh annually. An MoU was signed in 2022 during PM Modi's Lumbini visit; the project is in early development with construction not yet started.
Installed capacity
490 MW
Peaking run-of-river
River / basin
Arun
Koshi basin
Location
Sankhuwasabha
Koshi
Expected online
2032
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.
- 2022
MoU signed between SJVN and NEA for JV development
- 2032Planned
Possible commissioning if developed
Location
Approximate dam-area location on OpenStreetMap — precise to the district and river reach, not the exact structure.
Arun-4 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 Arun-4 Hydroelectric Project?+
The Arun-4 Hydroelectric Project has an installed capacity of 490 MW. It is a peaking run-of-river hydropower scheme.
Which river is the Arun-4 Hydroelectric Project on?+
The project is on the Arun River, part of Nepal's Koshi basin, in Sankhuwasabha district, Koshi Province.
Who is developing the Arun-4 Hydroelectric Project?+
The Arun-4 Hydroelectric Project is developed by Joint venture of SJVN Limited (India) and NEA (joint venture), with SJVN Limited (India), majority share; NEA.
What is the status of the Arun-4 Hydroelectric Project?+
As of mid-2026 the project is proposed / under development. MoU/JV signed 2022; early development phase; construction not yet started
When is the Arun-4 Hydroelectric Project expected to be commissioned?+
The Arun-4 Hydroelectric Project is expected to be commissioned around 2032, though dates for projects under development frequently shift.
Sources & data note
Figures for Arun-4 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.