Meadowbank Power Station

Meadowbank Dam
Location of the Meadowbank Dam in Tasmania
Country Australia
Location Central Highlands Tasmania
Coordinates 42°30′00″S 146°38′24″E / 42.50000°S 146.64000°E / -42.50000; 146.64000Coordinates: 42°30′00″S 146°38′24″E / 42.50000°S 146.64000°E / -42.50000; 146.64000
Purpose Power
Status Operational
Opening date 1966 (1966)
Owner(s) Hydro Tasmania
Dam and spillways
Type of dam Barrage
Impounds River Derwent
Height 43 metres (141 ft)
Length 265 metres (869 ft)
Dam volume 86 thousand cubic metres (3.0×10^6 cu ft)
Spillways 1
Spillway type Controlled
Spillway capacity 5,239 cubic metres per second (185,000 cu ft/s)
Reservoir
Creates Meadowbank Lake
Total capacity 59,650 megalitres (2,107×10^6 cu ft)
Catchment area 6,561 square kilometres (2,533 sq mi)
Surface area 62 hectares (150 acres)
Power station
Name Meadowbank Power Station
Coordinates 42°36′36″S 146°50′24″E / 42.61000°S 146.84000°E / -42.61000; 146.84000 (Meadowbank Power Station)
Operator(s) Hydro Tasmania
Commission date 1967 (1967)
Type Run-of-the-river
Hydraulic head 26 metres (85 ft)
Turbines 1 x 41.8 MW (56,100 hp) Boving Kaplan-type turbine
Installed capacity 41.8 megawatts (56,100 hp)
Capacity factor 0.8
Annual generation 187 gigawatt-hours (670 TJ)
Website
hydro.com.au/energy/our-power-stations/derwent-0/meadowbank
[1]

The Meadowbank Power Station is a run-of-the-river hydroelectric power station located in the Central Highlands region of Tasmania, Australia. The power station is situated on the Lower 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 Meadowbank Power Station is the final power station in the scheme. The power station is located aboveground below Meadowbank Lake, a small storage created by the concrete buttressed Meadowbank Dam on the Derwent River. The facilities at the Meadowbank Power Station are simple and include the dam, intake structure with intake gate designed to cut off full flow, a short penstock which is integral with the dam, the power station building, generator equipment and associated facilities.[2][3]

The power station was commissioned in 1967 by the Hydro Electric Corporation (TAS) and has a single Boving Kaplan-type turbine with a generating capacity of 41.8 megawatts (56,100 hp) of electricity.[4] Within the station building, the turbine has a five-bladed runner and concrete spiral casing. Pre-stressed cables passing through the stay vanes anchor the spiral casing and form part of the station foundation. No inlet valve is installed in the station. The station output, estimated to be 187 gigawatt-hours (670 TJ) annually,[1] is fed to TasNetworks' transmission grid via parallel 11 kV/220 kV Siemens generator transformers to the outdoor switchyard.[2]

Water discharged from the Meadowbank Power Station flows into the River Derwent.[3]

2016 energy crisis

In 2016, the power station was the location of diesel generators required to supplement the power into the Tasmanian grid due to the 2016 Tasmanian energy crisis and the failure of the Basslink cable.[5]

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 "Meadowbank Power Station Fact Sheet: Technical fact sheet" (PDF). Energy: Our power stations. Hydro Tasmania. Retrieved 16 January 2015.
  3. 1 2 "Derwent: Meadowbank Power Station". Energy. Hydro Tasmania. Retrieved 5 July 2015.
  4. ↑ Austral Archaeology Pty Ltd; Terry, Ian (April 2007). "Meadowbank Power Station—Conservation Management Plan" (PDF). Retrieved 1 February 2012.
  5. ↑ http://www.abc.net.au/news/2016-03-31/temporary-diesel-generators-unveilled-meadowbank-power-station/7287076


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