💥UPSC 2026, 2027 UAP Mentorship September Batch

Renewable Energy – Wind, Tidal, Geothermal, etc.

Naying Hydroelectric Project

Why in the News?

The Naying Hydroelectric Project (1000 MW), proposed on the Siyom (Yomgo) River in Shi-Yomi district, Arunachal Pradesh, represents a major addition to India’s clean energy expansion under the Decade of Hydro Power (2025–35).

About Siyom (Yomgo) River:

  • Geography: A right-bank tributary of the Brahmaputra, flowing entirely within Arunachal Pradesh.
  • Origin & Course: Arises in West Siang, travels ~170 km, and joins the Brahmaputra near Assam.
  • Ecology: Basin supports rich biodiversity, agro-pastoral livelihoods, and lies within the Eastern Himalaya Biodiversity Hotspot.
  • Protected Areas: Mouling National Park lies on its eastern bank, part of the Dibang–Siang biosphere landscape.
  • Hydrological Role: Ensures irrigation, microclimate regulation, and provides run-of-the-river potential for clean energy, though demanding careful ecosystem balance.

About Naying Hydroelectric Project:

  • Overview: A proposed 1,000 MW (4×250 MW) run-of-the-river project located in Shi-Yomi district, Arunachal Pradesh.
  • Developers: Jointly undertaken by North Eastern Electric Power Corporation (NEEPCO) and Arunachal Pradesh Hydropower Corporation Ltd (APHCL).
  • Design & Output: Features a concrete dam, underground powerhouse, and diversion tunnels, expected to generate 4,966.77 GWh annually.
  • Regulatory Approval: Received Central Electricity Authority (CEA) concurrence in 2013; progress slowed by environmental and social concerns.
  • Public Consultation: Environmental hearing scheduled for 12 November 2025 at Yapik Community Hall to assess ecological and community impacts.
  • Timeline: Construction targeted to start by 2028, with commissioning by 2032.
  • Policy Context: Forms part of the state’s Decade of Hydro Power (2025–2035), aiming for 19 GW capacity addition to support India’s net-zero goals.
  • Regional Linkages: Among five key hydel projects in the region – Heo (240 MW), Hirong (500 MW), Tato-I (186 MW), and Tato-II (700 MW).
[UPSC 2022] Consider the following pairs:

Reservoirs – States

1. Ghataprabha — Telangana

2. Gandhi Sagar — Madhya Pradesh

3. Indira Sagar — Andhra Pradesh

4. Maithon —Chhattisgarh

Options:

(a) Only one pair (b) Only two pairs (c) Only three pairs (d) All four pairs”

 

Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024

Attend Now

Subscribe
Notify of
0 Comments
Oldest
Newest Most Voted
Inline Feedbacks
View all comments

JOIN THE COMMUNITY

Join us across Social Media platforms.