Ranganadi Dam

Ranganadi Dam
Location of Ranganadi Dam
Location Arunachal Pradesh, India
Coordinates 27°20′34″N 93°49′0″E / 27.34278°N 93.81667°ECoordinates: 27°20′34″N 93°49′0″E / 27.34278°N 93.81667°E
Construction began 1988
Opening date 2001
Owner(s) North Eastern Electric Power Corporation (NEEPCO)
Dam and spillways
Type of dam Concrete gravity, diversion
Impounds Ranganadi River
Height 68 m (223 ft)
Length 339 m (1,112 ft)
Spillway type Service, gate-controlled
Reservoir
Creates Ranganadi Reservoir
Power station
Name Dikrong Power House
Coordinates 27°15′27″N 93°47′32″E / 27.25750°N 93.79222°E
Commission date January 2002
Type Run-of-the-river
Turbines 3 x 135 MW Francis-type
Installed capacity 405 MW


The Ranganadi Dam is a concrete-gravity diversion dam on the Ranganadi River in Arunachal Pradesh, India which serves a run-of-the-river scheme. The dam is intended for hydroelectric purposes and is part of Stage I of the Ranganadi Hydro Electric Project and supports the 405-megawatt (543,000 hp) Dikrong Power House. The 68 m (223 ft) tall dam diverts water south into a 10.1 km (6.3 mi) headrace tunnel which is then transferred into a 1,062 m (3,484 ft) penstock before reaching the three 135 megawatts (181,000 hp) turbines.[1] Since commissioning, the power house has been generating much less than its capacity because of drought.[2]

Stage II of the project is designed to provide water storage for Stage I and includes a 134 m (440 ft) rock-fill embankment dam with a 523,000,000 m3 (1.85×1010 cu ft) storage capacity. This dam will support an additional 180 megawatts (240,000 hp) power station.[3]

See also

References

  1. "Ranganadi Hydro Electric Project Stage I". North Eastern Electric Power Corporation. Retrieved 28 August 2010.
  2. "Reservoir of dams". India Environmental Portal. May 2008. Retrieved 28 August 2010.
  3. "Ranganadi Hydro Electric Project Stage II". North Eastern Electric Power Corporation. Retrieved 28 August 2010.