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Rangit II Hydro Power Project

Site consultancy services, tendering and detail design for a run-of-river scheme HPP in India

Description of project:

The Rangit II Hydro Power Project (66 MW) is located on the Rimbi River near Linchyum / Rimbi village, which is about 120 km from Gangtok, the state capital of Sikkim.

It is a run-of-river scheme which envisages diverting the flow, by use of a concrete gravity dam 40 m high, through a water conductor system to a surface powerhouse on the left bank of the Kalej Khola River. The project also comprises a single opening intake structure, a diversion tunnel, one underground desilting chamber, a horseshoe shaped headrace tunnel, a vertical surge shaft, one penstock which bifurcates into two, a surface powerhouse which accommodates two Pelton Wheel turbines, each with a capacity of 33 MW, and a free flow tailrace channel.

ÅF's services:

As Owner's Engineer, we provided the following services:

  • Review of detailed project report
  • Advisory services for topographical survey
  • Hydrology and geological studies
  • Preparation of tender specifications
  • Tender designs and drawings
  • Tender documents
  • Detail design and drawings for civil works.

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