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 | |
| Country | Fiji |
| Location | Nadarivatu District, Nadroga-Navosa Province |
| Coordinates | 17°40′02.66″S 177°56′29.14″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) |
| Nadarivatu Hydro Power Station | |
| Coordinates | 17°40′39.72″S 177°54′46.17″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) |
See also
References
- "Hydroelectric Power Plants in Asia-Pacific - other". IndustCards. Retrieved 17 April 2014.
- "New hydro power churns". Fiji Sun. 15 September 2012. Retrieved 17 April 2014.
- "Nadarivatu Hydro Power Scheme" (PDF). Sustainable Energy Ltd. September 2006. Retrieved 17 April 2014.
- "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.