Nadarivatu Dam | |
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Location of Nadarivatu Dam in Fiji
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Country | Fiji |
Location | Nadarivatu District, Nadroga-Navosa Province |
Coordinates | 17°40′02.66″S 177°56′29.14″E / 17.6674056°S 177.9414278°ECoordinates: 17°40′02.66″S 177°56′29.14″E / 17.6674056°S 177.9414278°E |
Purpose | Power |
Status | Operational |
Construction began | 2009 |
Opening date | 2012 |
Construction cost | US$150 million |
Owner(s) | Fiji Electricity Authority |
Dam and spillways | |
Type of dam | Gravity |
Impounds | Sigatoka River |
Height (foundation) | 40 m (130 ft) |
Height (thalweg) | 32 m (105 ft) |
Length | 75 m (246 ft) |
Dam volume | 36,000 m3 (47,000 cu yd) |
Spillway type | Controlled overflow, three radial gates |
Reservoir | |
Total capacity | 1,009,000 m3 (818 acre·ft) |
Active capacity | 244,000 m3 (198 acre·ft) |
Power station | |
Name | Nadarivatu Hydro Power Station |
Coordinates | 17°40′39.72″S 177°54′46.17″E / 17.6777000°S 177.9128250°E |
Commission date | 7 September 2012 |
Hydraulic head | 335.7 m (1,101 ft) |
Turbines | 2 x 20.85 MW (27,960 hp) Pelton-type |
Installed capacity | 41.7 MW (55,900 hp) |
Annual generation | 101 GWh (360 TJ) |
The Nadarivatu Dam, also known as the Korolevu Dam, is a concrete gravity dam on the upper reaches of the Sigatoka River in Nadarivatu District of Nadroga-Navosa Province, Fiji. The primary purpose of the dam is to generate hydroelectric power in a 41.7 megawatts (55,900 hp) run-of-the-river scheme. The Nadarivatu Hydropower Scheme was first identified in 1977 during a hydropower study. Details plans for the project were developed in 2002 and major construction began in 2009. The power station was commissioned on 7 September 2012 but an inauguration ceremony led by Prime Minister Frank Bainimarama was held a week later on 14 September. Funding and loans for the project was provided by several organizations to include the China Development Bank (US$70 Million), Fiji Electricity Authority bonds (US$50 million), ADZ Bank (US$30 million). The 40 m (130 ft) tall dam diverts water from the Sigatoka River through a 3,225 metres (10,581 ft) long headrace/ tunnel to a power station along the Ba River to the southwest. The power station contains two 20.85 megawatts (27,960 hp) Pelton turbine-generators. The drop in elevation between the reservoir and the power station affords a gross hydraulic head (water drop) of 335.7 metres (1,101 ft).