Why in news?
The Naying Hydroelectric Project is a proposed 1000 MW hydropower plant planned on the Siyom (Yomgo) river in Arunachal Pradesh.

Key features of project

• Developed by the North Eastern Electric Power Corporation (NEEPCO). 
• A 108-meter-high concrete dam.
• A 7.08 km long head race tunnel with a diameter of 10.6 meters.

Siyom river

• The Siyom river is a right-bank tributary of the Brahmaputra River, flowing through Arunachal Pradesh.
• The Mouling National Park lies on the east bank of this river, near the project site.

The Naying project is part of Arunachal Pradesh's strategic hydro power mission under the Decade of Hydro Power (2025-35), aiming to add 19 GW capacity and contribute to India's clean energy and net-zero goals.

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