Ranganadi Dam

Ranganadi Dam
Location of Ranganadi Dam in India
Location	Arunachal Pradesh, India
Coordinates	27°20′34″N 93°49′0″E / 27.34278°N 93.81667°E / 27.34278; 93.81667
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
Dikrong Power House
Coordinates	27°15′27″N 93°47′32″E / 27.25750°N 93.79222°E / 27.25750; 93.79222
Operator(s)	North Eastern Electric Power Corporation (NEEPCO)
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 (also known as Panyor 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]

• Dibang Dam