Nieterana Power Station
The Nieterana Power Station is a small hydroelectric power station located in the Central Highlands region of Tasmania, Australia.
| Clark Dam | |
|---|---|
 The Clark Dam wall with the Butler Gorge Power Station located at the wall base. | |
  Location of the Clark Dam in Tasmania | |
| Country | Australia |
| Location | Central Highlands, Tasmania |
| Coordinates | 42°15′36″S 146°15′36″E |
| Purpose | Power |
| Status | Operational |
| Opening date | 1949 |
| Owner(s) | Hydro Tasmania |
| Dam and spillways | |
| Type of dam | Arch dam |
| Impounds | Upper River Derwent |
| Height | 67 metres (220 ft) |
| Length | 378 metres (1,240 ft) |
| Dam volume | 159 thousand cubic metres (5.6×106 cu ft) |
| Spillways | 1 |
| Spillway type | Controlled |
| Spillway capacity | 687 cubic metres per second (24,300 cu ft/s) |
| Reservoir | |
| Creates | Lake King William |
| Total capacity | 539,340 megalitres (19,047×106 cu ft) |
| Catchment area | 575 square kilometres (222 sq mi) |
| Surface area | 41.45 hectares (102.4 acres) |
| Nieterana Power Station | |
| Coordinates | 42°15′36″S 146°15′36″E |
| Operator(s) | Hydro Tasmania |
| Commission date | 2004 |
| Type | Mini-hydro |
| Hydraulic head | 30 metres (98 ft) |
| Turbines | 1 x 2.2-megawatt (3,000 hp) Boving Fouress Bangalore Francis-type turbine |
| Installed capacity | 2.2 megawatts (3,000 hp) |
| Capacity factor | 0.9 |
| Website hydro | |
| [1] | |
Technical details
Part of the Derwent scheme that comprises eleven hydroelectric power stations, the Nieterana Power Station is the second station in the scheme. The power station is located aboveground at the foot of the concrete arched Clark Dam across the River Derwent that forms Lake King William. Water from the lake is fed to the Butlers Gorge Power Station, coupled to one of two discharge regulating valves to ensure water flow to Tarraleah Power Station located further downstream. The Nieterana Power Station takes advantage of the energy potential from water dissipating from the Butlers Gorge Power Station into Tarraleah No. 2 canal. The mini-hydro station can only be used when the Lake King William lake level is between 709.2 metres (2,327 ft) and 720.7 metres (2,365 ft).[2][3]
The power station was commissioned in 2004 by Hydro Tasmania and the station has one horizontal Boving Fouress Bangalore Francis turbine, with a generating capacity of 2.2 megawatts (3,000 hp) of electricity. The station output is fed to TasNetworks' transmission grid via an existing 11 kV/110 kV three-phase English Electric generator transformer to the outdoor switchyard.[2]
Nieterana is the aboriginal word for little brother.[3]
References
- "Register of Large Dams in Australia" (Excel (requires download)). Dams information. Australian National Committee on Large Dams. 2010. Retrieved 23 June 2015.
- "Nieterana Power Station: Technical fact sheet" (PDF). Derwent Catchment. Hydro Tasmania. Archived from the original (PDF) on 24 September 2015. Retrieved 5 July 2015.
- "Derwent: Nieterana Power Station". Energy. Hydro Tasmania. Retrieved 5 July 2015.