Bastyan Power Station

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Bastyan Dam
Relief Map of Tasmania.png
Red pog.svg
Location of the Bastyan Dam in Tasmania
CountryAustralia
Location Western Tasmania
Coordinates 41°43′48″S145°31′48″E / 41.73000°S 145.53000°E / -41.73000; 145.53000 Coordinates: 41°43′48″S145°31′48″E / 41.73000°S 145.53000°E / -41.73000; 145.53000
Purpose Power
StatusOperational
Construction began1974 (1974)
Opening date1983 (1983)
Owner(s) Hydro Tasmania
Dam and spillways
Type of dam Embankment dam
Impounds Pieman River
Height75 metres (246 ft)
Length510 metres (1,670 ft)
Dam volume570 thousand cubic metres (20×10^6 cu ft)
Spillways 1
Spillway type Uncontrolled
Spillway capacity2,806 cubic metres per second (99,100 cu ft/s)
Reservoir
Creates Lake Rosebery
Total capacity123,520 megalitres (4,362×10^6 cu ft)
Catchment area 1,397 square kilometres (539 sq mi)
Surface area74.4 hectares (184 acres)
Bastyan Power Station
Coordinates 41°43′48″S145°31′48″E / 41.73000°S 145.53000°E / -41.73000; 145.53000
Operator(s) Hydro Tasmania
Commission date1993 (1993)
Type Conventional
Hydraulic head 61 metres (200 ft)
Turbines 1 x 81 MW (109,000 hp)
Fuji Francis turbine
Installed capacity 81 megawatts (109,000 hp)
Capacity factor 0.85
Annual generation 405 gigawatt-hours (1,460 TJ)
Website
hydro.com.au/energy/our-power-stations/pieman
[1]

The Bastyan Power Station is a conventional hydroelectric power station located in Western Tasmania, Australia.

Contents

Technical details

Part of the Pieman River scheme that comprises four hydroelectric power stations, the Bastyan Power Station is the third station in the scheme. The power station is located aboveground at the foot of the rock-filled concrete faced Bastyan Dam which forms Lake Rosebery. Water from the lake is fed to the power station near the centre of the dam wall by a 150-metre (490 ft) single penstock tunnel. [2]

The power station was commissioned in 1983 by the Hydro Electric Corporation (TAS) and the station has one Fuji Francis turbine, with a generating capacity of 81 megawatts (109,000 hp) of electricity. The station output, estimated to be 405 gigawatt-hours (1,460 TJ) annually, [1] is fed to TasNetworks' transmission grid via a 13.8 kV/220 kV Fuji generator transformer to the outdoor switchyard. [3]

The water discharged from the Bastyan Power Station flows into Lake Pieman for use in the Reece Power Station.

See also

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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. ↑ "Pieman". Energy. Hydro Tasmania . Retrieved 4 July 2015.
  3. ↑ "Bastyan Power Station: Technical fact sheet" (PDF). Pieman Catchment. Hydro Tasmania. Archived from the original (PDF) on 24 September 2015. Retrieved 4 July 2015.
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