Tungatinah Power Station

Lake Binney Dam
Location of Lake Binney in Tasmania
Country Australia
Location Central Highlands, Tasmania
Coordinates 42°15′36″S 146°29′24″E / 42.26000°S 146.49000°E / -42.26000; 146.49000Coordinates: 42°15′36″S 146°29′24″E / 42.26000°S 146.49000°E / -42.26000; 146.49000
Purpose Power
Status Operational
Opening date 1953 (1953)
Owner(s) Hydro Tasmania
Dam and spillways
Type of dam Embankment dam
Impounds Big Marsh Creek
Height 10 metres (33 ft)
Length 1,262 metres (4,140 ft)
Dam volume 192 thousand cubic metres (6.8×10^6 cu ft)
Spillways 0
Reservoir
Creates Tungatinah Lagoon
Total capacity 26,420 megalitres (933×10^6 cu ft)
Catchment area 52 square kilometres (20 sq mi)
Surface area 40.9 hectares (101 acres)
Power station
Name Tungatinah Power Station
Coordinates 42°16′26″S 146°27′42″E / 42.27389°S 146.46167°E / -42.27389; 146.46167 (Tungatinah Power Station)
Operator(s) Hydro Tasmania
Commission date 1953 (1953)–1956 (1956)
Type Conventional
Hydraulic head 290 metres (950 ft)
Turbines 5 x 25-megawatt (34,000 hp)
Boving Francis-type turbine
Installed capacity 125 megawatts (168,000 hp)
Capacity factor 0.8
Annual generation 579 gigawatt-hours (2,080 TJ)
Website
hydro.com.au/energy/our-power-stations/derwent-0/tungatinah-power-station
[1]

The Tungatinah Power Station is a conventional hydroelectric power station located in the Central Highlands region of Tasmania, Australia. The power station is situated on the Upper River Derwent catchment and is owned and operated by Hydro Tasmania.

Technical details

Part of the Derwent scheme that comprises eleven hydroelectric power stations, the Tungatinah Power Station is the second station in the scheme, adjacent to the Nive River. The power station is located aboveground adjacent to the Nive River. The headworks are quite complex with several dams (including the Bronte Lagoon formed by Bronte Dam, Bradys Lake formed by Bradys Dam, Lake Binney and the Tungatinah Lagoon), a tunnel, canals, pipelines, flumes their associated control gates and a pump station. Water is diverted from the Tungatinah Lagoon by a short tunnel with surge shaft and then descends 290 metres (950 ft) through five steel penstocks to the power station.[2][3]

The power station was commissioned between 1953 and 1956 by the Hydro Electric Corporation (TAS) and the station has five Boving Francis turbines, with a total generating capacity of 125 megawatts (168,000 hp) of electricity.[4] Within the station building, each turbine has a semi-embedded spiral casing and water flow is controlled via a spherical rotary inlet valve and a relief valve designed to prevent spiral casing over pressure. The station output, estimated to be 579 gigawatt-hours (2,080 TJ) annually,[1] is fed to Tasetworks' transmission grid via five 11 kV/110 kV three-phase GEC generator transformer to the outdoor switchyard.[2]

After passing through the five turbines, water is discharged into the Nive River where it combines with the water from the Tarraleah Power Station to supply the six Lower Derwent stations.[3]

See also

References

  1. 1 2 "Register of Large Dams in Australia" (Excel (requires download)). Dams information. Australian National Committee on Large Dams. 2010. Retrieved 23 June 2015.
  2. 1 2 "Tungatinah Station: Technical fact sheet" (PDF). Derwent Catchment. Hydro Tasmania. Retrieved 5 July 2015.
  3. 1 2 "Derwent: Tungatinah Power Station". Energy. Hydro Tasmania. Retrieved 5 July 2015.
  4. ↑ Austral Archaeology Pty Ltd; Terry, Ian (April 2007). "Tungatinah Power Station—Conservation Management Plan" (PDF). Retrieved 1 February 2012.


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