Nadarivatu Dam

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).[1][2] The 40 m (130 ft) tall dam diverts water from the Sigatoka River through a 3,225 metres (10,581 ft) long headrace/penstock 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).[3][4]

Nadarivatu Dam
Location of Nadarivatu Dam in Fiji
CountryFiji
LocationNadarivatu District, Nadroga-Navosa Province
Coordinates17°40′02.66″S 177°56′29.14″E
PurposePower
StatusOperational
Construction began2009
Opening date2012 (2012)
Construction costUS$150 million
Owner(s)Fiji Electricity Authority
Dam and spillways
Type of damGravity
ImpoundsSigatoka River
Height (foundation)40 m (130 ft)
Height (thalweg)32 m (105 ft)
Length75 m (246 ft)
Dam volume36,000 m3 (47,000 cu yd)
Spillway typeControlled overflow, three radial gates
Reservoir
Total capacity1,009,000 m3 (818 acre⋅ft)
Active capacity244,000 m3 (198 acre⋅ft)
Nadarivatu Hydro Power Station
Coordinates17°40′39.72″S 177°54′46.17″E
Commission date7 September 2012
Hydraulic head335.7 m (1,101 ft)
Turbines2 x 20.85 MW (27,960 hp) Pelton-type
Installed capacity41.7 MW (55,900 hp)
Annual generation101 GWh (360 TJ)

See also

References

  1. "Hydroelectric Power Plants in Asia-Pacific - other". IndustCards. Retrieved 17 April 2014.
  2. "New hydro power churns". Fiji Sun. 15 September 2012. Retrieved 17 April 2014.
  3. "Nadarivatu Hydro Power Scheme" (PDF). Sustainable Energy Ltd. September 2006. Retrieved 17 April 2014.
  4. "Nadarivatu Renewable Energy EPC Project Project Description" (PDF). Fiji Electricity Authority. 29 June 2007. Archived from the original (PDF) on 19 April 2014. Retrieved 17 April 2014.
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