Miena Rockfill Dam | |
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Location of the Miena Rockfill Dam in Tasmania | |
Country | Australia |
Location | Central Highlands Tasmania |
Coordinates | 41°58′48″S 146°43′48″E / 41.98000°S 146.73000°E |
Purpose | Power |
Status | Operational |
Opening date | 1967 |
Owner(s) | Hydro Tasmania |
Dam and spillways | |
Type of dam | Embankment dam |
Impounds | Shannon River |
Height | 28 metres (92 ft) |
Length | 1,136 metres (3,727 ft) |
Dam volume | 481 thousand cubic metres (17.0×10 6 cu ft) |
Spillways | 1 |
Spillway type | Controlled |
Spillway capacity | 58 cubic metres per second (2,000 cu ft/s) |
Reservoir | |
Creates | Great Lake |
Total capacity | 3,156,640 megalitres (111,476×10 6 cu ft) |
Catchment area | 399 square kilometres (154 sq mi) |
Surface area | 1,761.2 hectares (4,352 acres) |
Poatina Power Station | |
Coordinates | 41°48′42″S 146°55′08″E / 41.81167°S 146.91889°E |
Operator(s) | Hydro Tasmania |
Commission date | 1966 | ; 1977 ; 2008 ; 2010
Type | Conventional |
Hydraulic head | 758 metres (2,487 ft) |
Turbines |
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Installed capacity | 313 megawatts (420,000 hp) |
Capacity factor | 0.8 |
Annual generation | 1,255 gigawatt-hours (4,520 TJ) |
Website www | |
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The Poatina Power Station is a conventional hydroelectric power station located in the Central Highlands region of Tasmania, Australia. The power station is situated on the Great Lake and South Esk and is owned and operated by Hydro Tasmania.