Why in news?
Arunachal Pradesh plans to hold an environmental public hearing on 12 November 2025 for the long‑delayed Naying hydropower project. The run‑of‑the‑river scheme, to be developed by the North Eastern Electric Power Corporation (NEEPCO), will harness the Siyom (Yomgo) River to generate more than 4,900 GWh of electricity each year. Construction is expected to start around 2028 with commissioning in 2032.
Background
The Naying project was conceived over a decade ago and received approval from the Central Electricity Authority in 2013. However, environmental and social concerns have delayed progress. Under Arunachal Pradesh’s Decade of Hydro Power (2025–35) mission, the state aims to develop about 19 GW of hydroelectric capacity. NEEPCO proposes a concrete dam on the Siyom River with an underground powerhouse and long headrace tunnels. Large areas of forest land would be diverted, raising concerns among local communities. The state government has created joint ventures between NEEPCO and the Arunachal Pradesh Hydropower Corporation to fast‑track projects such as Naying.
Siyom River – brief profile
- Right‑bank tributary: The Siyom or Yomgo originates in the Assam Himalaya near the Tibet border and flows southeast through West Siang district before joining the Brahmaputra (Siang) near Aalo.
- Length and course: The river runs for about 170 km, passing through rugged valleys and the town of Aalo. Mouling National Park lies on its eastern bank.
- Ecological significance: Dense forests and rich biodiversity line its banks, supporting local livelihoods. Any dam must carefully mitigate impacts on wildlife and communities.
Key facts about the Naying project
- Capacity and design: The proposed plant will have a capacity of 1,000 MW. Water will be diverted through long tunnels to an underground powerhouse, relying on the river’s natural flow rather than large reservoirs.
- Annual generation: The project is expected to produce around 4,966.77 GWh of electricity, enough to power millions of homes.
- Timeline: Construction is likely to begin around 2028, with commissioning targeted for 2032.
- Environmental challenges: Diversion of forest land will affect wildlife and local communities. Past protests delayed the project; the upcoming public hearing gives residents an opportunity to voice concerns.
- Economic significance: Hydropower could bring revenue and jobs to this remote region and help India meet its clean‑energy goals. Balancing development and ecological protection remains critical.
Conclusion
The Naying hydropower project embodies both the promise and the challenges of harnessing Himalayan rivers. If built responsibly, it could spur regional development and reduce reliance on fossil fuels. Careful environmental safeguards, fair rehabilitation for affected people and sustained public consultation will determine its long‑term success.
Source: Business Standard · The Times of India