Meadowbank Power Station
Power station in Tasmania, Australia From Wikipedia, the free encyclopedia
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.
| Meadowbank Dam | |
|---|---|
 | |
  Location of the Meadowbank Dam in Tasmania | |
| Country | Australia |
| Location | Central Highlands Tasmania |
| Coordinates | 42°30′00″S 146°38′24″E |
| Purpose | Power |
| Status | Operational |
| Opening date | 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 (3.0×106 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 (2,107×106 cu ft) |
| Catchment area | 6,561 square kilometres (2,533 sq mi) |
| Surface area | 62 hectares (150 acres) |
| Meadowbank Power Station | |
| Coordinates | 42°36′36″S 146°50′24″E |
| Operator(s) | Hydro Tasmania |
| Commission date | 1967 |
| Type | Run-of-the-river |
| Hydraulic head | 26 metres (85 ft) |
| Turbines | 1 x 41.8 MW (56,100 hp) Andritz Kaplan-type turbine |
| Installed capacity | 43.8 megawatts (58,700 hp) |
| Capacity factor | 0.51 |
| Annual generation | 187 gigawatt-hours (670 TJ) |
| Website hydro | |
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 above ground, 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.[1][2]
The power station was commissioned in 1967 by the Hydro Electric Corporation (TAS) with a single Boving Kaplan-type turbine with a generating capacity of 41.8 megawatts (56,100 hp) of electricity.[3]
In 2015, the turbine was upgraded to a single Andritz Kaplan-type turbine with a generating capacity of 43.8 megawatts (58,700 hp) of electricity.[1]
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, is fed to TasNetworks' transmission grid via parallel 11 kV/220 kV Siemens generator transformers to the outdoor switchyard.[1]
Water discharged from the Meadowbank Power Station flows into the River Derwent.[2]
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.[4]
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