Archive · 24 Dec 2025
Subansiri Lower Hydroelectric Project Unit-2 Inaugurated
The Subansiri Lower Hydroelectric Project is a big dam in Arunachal Pradesh that makes clean energy.
On Tuesday, the second part of the dam (Unit-2) started working.
The dam is very big and can make a lot of electricity every year.
It helps the country use cleaner energy and makes the power system stronger.
Many important people were there to celebrate this big achievement.
The dam also helps control floods and manage water in the area.
Soon, more parts of the dam will start working, making even more clean energy for India.
The project also supports local communities by creating jobs and improving infrastructure.
Unit 2 (250 MW) of the 2000 MW Subansiri Lower Hydroelectric Project was inaugurated commercially.
The project symbolizes India’s commitment to clean and sustainable energy, supporting North-East India’s growth and Net Zero goals.
The dam is the largest in North-East India, featuring an 116-metre-high concrete gravity dam.
The project is designed as a Run-of-the-River scheme, generating 7,422 million units of renewable electricity annually.
The inauguration was attended by Union Power Minister Manohar Lal, Pankaj Agarwal (Secretary Power), Bhupender Gupta (CMD, NHPC), and other key stakeholders.
- Who
- Union Power Minister Manohar Lal, Pankaj Agarwal (Secretary Power), Bhupender Gupta (CMD, NHPC), Ministry of Power, NHPC, Governments of Arunachal Pradesh and Assam, former NHPC leadership, Subansiri Project team, key stakeholders, and partners
- What
- Inauguration of the commercial operation of Unit 2 of the Subansiri Lower Hydroelectric Project
- When
- Tuesday (specific date not mentioned)
- Where
- Subansiri River, Arunachal Pradesh
- Why
- To support North-East India’s growth, strengthen the national grid, and advance India’s Net Zero goals
Proponents
Critics
Environmental Impact
Proponents
Proponents argue that the project supports clean energy and sustainable development, enhancing regional infrastructure and grid resilience.
Critics
Critics may raise concerns about the environmental impact on local ecosystems and communities, including potential disruptions to the Subansiri river basin.
- Project Name
- Subansiri Lower Hydroelectric Project
- Total Capacity
- 2000 MW (8×250 MW)
- Location
- Arunachal Pradesh
- Annual Electricity Generation
- 7,422 million units (MU)
- Dam Height
- 116 metres
- Project Type
- Run-of-the-River scheme
- Inauguration Date
- Tuesday (specific date not mentioned)
- Flood Cushion
- 442 million cubic metres
- Gross Reservoir Storage
- 1,365 million cubic metres
- Riverbank Protection Measures
- 30 km downstream completed, extending to 60 km
- Investment in Riverbank Protection
- Rs 522 crore
- Livelihood Programmes
- Piggery, sericulture, and handloom
- Beneficiaries
- 16 states, with free power allocations to Arunachal Pradesh and Assam
- Local Employment
- 7,000 local people daily during construction
