Ranganadi Dam

Ranganadi Dam
Location of Ranganadi Dam in India
Location	Arunachal Pradesh, India
Coordinates	27°20′34″N 93°49′0″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
Dikrong Power House
Coordinates	27°15′27″N 93°47′32″E
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.

Power generation

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. Since commissioning, the power house has been generating much less than its capacity because of drought.

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.

See also

• Dibang Dam