Subansiri Lower Hydro Electric Project (SLHEP)

About Subansiri Lower Hydro Electric Project (SLHEP):

• It is an under-construction gravity dam on the Subansiri River in North Eastern India on the borders of Arunachal Pradesh and Assam.
• It is a run-of-river project. 
• It will be the single largest hydroelectric plant in India when completed.
• The dam will be 116 m high from the river bed level and 130 m from the foundation. The length of the dam will be 284 m. 
• The project is being developed by the state-run National Hydro Power Corporation (NHPC).
• It is expected to supply 2,000 MW of power (eight 250 MW units) when completed.

Key Facts about Subansiri River:

• It is a trans-Himalayan River and a right-bank tributary of the Brahmaputra River.
• Also called the Gold River, the Subansiri River is famous for its gold dust.
• Course:
  • It originates from the Himalayas in China and flows towards the east and southeast into India.
  • It flows through Assam, Arunachal Pradesh, and the Tibet Autonomous Region of China.
  • It joins the Brahmaputra River in the Lakhimpur district of Assam.
• It is approx. 518 km long, with a drainage basin of 32,640 sq.km.
• It is the largest tributary of the Brahmaputra, contributing 7.92% of the Brahmaputra's total flow.

Q1: Which are the main tributaries of Brahmaputra?

The principal tributaries of the river joining from right are the Lohit, the Dibang, the Subansiri, the Jiabharali, the Dhansiri, the Manas, the Torsa, the Sankosh and the Teesta whereas the Burhidihing, the Desang, the Dikhow, the Dhansiri and the Kopili joins it from left.

News: Assam: 2000 MW Subansiri Lower Hydroelectric Project Nearing Completion, 93% Work Over