Devils Gate Power Station

Devils Gate Dam

The Devils Gate Dam double arch wall
Location of the Devils Gate Dam in Tasmania
Country Australia
Location North-western Tasmania
Coordinates 41°21′1″S 146°15′48″E / 41.35028°S 146.26333°E / -41.35028; 146.26333Coordinates: 41°21′1″S 146°15′48″E / 41.35028°S 146.26333°E / -41.35028; 146.26333
Purpose Power
Status Operational
Opening date 1969 (1969)
Owner(s) Hydro Tasmania
Dam and spillways
Type of dam Arch dam
Impounds Forth River
Height 84 metres (276 ft)
Length 134 metres (440 ft)
Dam volume 31 thousand cubic metres (1.1×10^6 cu ft)
Spillways 1
Spillway type Uncontrolled
Spillway capacity 2,040 cubic metres per second (72,000 cu ft/s)
Reservoir
Creates Lake Barrington
Total capacity 179,940 megalitres (6,355×10^6 cu ft)
Catchment area 742 square kilometres (286 sq mi)
Surface area 66.5 hectares (164 acres)
Power station
Name Devils Gate Power Station
Operator(s) Hydro Tasmania
Commission date 1969 (1969)
Type Conventional
Hydraulic head 68 metres (223 ft)
Turbines 1 x 63 MW (84,000 hp)
Boving Francis turbine
Installed capacity 63 megawatts (84,000 hp)
Capacity factor 0.8
Annual generation 314 gigawatt-hours (1,130 TJ)
Website
hydro.com.au/energy/our-power-stations/mersey-forth
[1]

The Devils Gate Power Station is a conventional hydroelectric power station located in north-western Tasmania, Australia.

Technical details

Part of the MerseyForth scheme that comprises eight hydroelectric power stations, the Devils Gate Power Station is the sixth station in the scheme. The power station is located below the double-arched concrete Devils Gate Dam which forms Lake Barrington. Water from the lake is fed to the power station by a 150-metre (490 ft) single penstock tunnel.[2][3]

The power station was commissioned in 1971 by the Hydro Electric Corporation (TAS) and the station has one Boving Francis turbine, with a generating capacity of 63 megawatts (84,000 hp) of electricity. The station output, estimated to be 314 gigawatt-hours (1,130 TJ) annually,[1] is fed to TasNetworks' transmission grid via an 11 kV/110 kV Siemens generator transformer to the outdoor switchyard.[4]

Recreation

Lake Barrington is a world-famous rowing venue that hosted the 1990 World Rowing Championships. The dam is 84 metres (276 ft) high. It is one of the thinnest concrete arch dams in the world.[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. "Mersey - Forth". Energy. Hydro Tasmania. Retrieved 3 July 2015.
  3. 1 2 "Devils Gate Dam". Engineers Australia.
  4. "Devils Gate Power Station: Technical fact sheet" (PDF). Mersey-Forth Catchment. Hydro Tasmania. Retrieved 3 July 2015.


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