Wayatinah Power Station
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The Wayatinah Power Station is a run-of-the-river
hydroelectric Hydroelectricity, or hydroelectric power, is electricity generated from hydropower (water power). Hydropower supplies one sixth of the world's electricity, almost 4500 TWh in 2020, which is more than all other renewable sources combined and ...
power station A power station, also referred to as a power plant and sometimes generating station or generating plant, is an industrial facility for the generation of electric power. Power stations are generally connected to an electrical grid. Many p ...
located in the Central Highlands region of
Tasmania ) , nickname = , image_map = Tasmania in Australia.svg , map_caption = Location of Tasmania in AustraliaCoordinates: , subdivision_type = Country , subdi ...
, Australia. The power station is situated on the Lower River Derwent catchment and is owned and operated by
Hydro Tasmania Hydro Tasmania, known for most of its history as the Hydro-Electric Commission (HEC) or The Hydro, is the trading name of the Hydro-Electric Corporation, a Tasmanian Government business enterprise which is the predominant electricity generator i ...
.


Technical details

Part of the Derwent scheme that comprises eleven hydroelectric power stations, the Wayatinah Power Station is the sixth power station in the scheme and the second power station in the lower run-of-river system. The power station is located aboveground below Wayatinah Lagoon, a small storage created by the rock-filled Wayatinah Dam on the Derwent River below its junction with the Nive River. Water from the Derwent from Liapootah Power Station and spill from Liapootah Dam flows into Wayatinah Lagoon. Water in the lagoon is diverted by a -long tunnel to two low pressure woodstave pipelines, each long. It then descends through three steel penstocks to the Wayatinah Power Station. The tunnel intake structure is provided with two vertical lift, gravity close intake gates designed to cut off full flow. Each of the three steel penstocks is provided with a hilltop valve designed to close under full flow. The power station was commissioned in 1957 by the Hydro Electric Corporation (TAS) and the station has three
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turbines, with a combined generating capacity of of electricity. Within the station building, each turbine has a fully embedded spiral casing and water flow is controlled by a spherical rotary main inlet valve and a turbine relief valve designed to prevent spiral casing overpressure. The station output, estimated to be annually, is fed to TasNetworks' transmission grid via an 11 k V/220 kV three-phase English Electric generator transformer to the outdoor switchyard. An 11 kV indoor switchgear system also supplies a distribution yard that supplies power to the local area from Wayatinah village to and includes the power stations of Liapootah, Wayatinah, Catagunya, Repulse and Cluny.


See also

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List of power stations in Tasmania This is a list of active power stations in Tasmania, Australia. Candidates for this list must already be commissioned and capable of generating or more of electricity. Gas Thermal gas These power stations use gas combustion to power steam ...


References


External links

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Hydro Tasmania Hydro Tasmania, known for most of its history as the Hydro-Electric Commission (HEC) or The Hydro, is the trading name of the Hydro-Electric Corporation, a Tasmanian Government business enterprise which is the predominant electricity generator i ...
page o
the Lower Derwent
{{CentralHighlandsTasmania , state=autocollapse Energy infrastructure completed in 1957 Hydroelectric power stations in Tasmania Central Highlands (Tasmania) Run-of-the-river power stations 1957 establishments in Australia