Fisher Power Station

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Mackenzie Dam
Relief Map of Tasmania.png
Red pog.svg
Location of the Mackenzie Dam in Tasmania
CountryAustralia
LocationNorth-western Tasmania
Coordinates 41°40′48″S146°22′48″E / 41.68000°S 146.38000°E / -41.68000; 146.38000 Coordinates: 41°40′48″S146°22′48″E / 41.68000°S 146.38000°E / -41.68000; 146.38000
Purpose Power
StatusOperational
Opening date1969 (1969)
Owner(s) Hydro Tasmania
Dam and spillways
Type of dam Arch dam
Impounds Fisher River
Height14 metres (46 ft)
Length976 metres (3,202 ft)
Dam volume176 thousand cubic metres (6.2×10^6 cu ft)
Spillways 1
Spillway type Uncontrolled
Spillway capacity515 cubic metres per second (18,200 cu ft/s)
Reservoir
Creates Lake Mackenzie
Total capacity20,220 megalitres (714×10^6 cu ft)
Catchment area 75 square kilometres (29 sq mi)
Surface area29.6 hectares (73 acres)
Fisher Power Station
Coordinates 41°40′24″S146°16′06″E / 41.67333°S 146.26833°E / -41.67333; 146.26833
Operator(s) Hydro Tasmania
Commission date1973 (1973)
Type Conventional
Hydraulic head 603 metres (1,978 ft)
Turbines 1 x 46 MW (62,000 hp)
Fuji Pelton turbine
Installed capacity 46 megawatts (62,000 hp)
Capacity factor 0.9
Annual generation 240 gigawatt-hours (860 TJ)
Website
hydro.com.au/energy/our-power-stations/mersey-forth
[1]

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

Power station facility generating electric power

A power station, also referred to as a power plant or powerhouse and sometimes generating station or generating plant, is an industrial facility for the generation of electric power. Most power stations contain one or more generators, a rotating machine that converts mechanical power into three-phase electric power. The relative motion between a magnetic field and a conductor creates an electric current. The energy source harnessed to turn the generator varies widely. Most power stations in the world burn fossil fuels such as coal, oil, and natural gas to generate electricity. Cleaner sources include nuclear power, biogas and an increasing use of renewables such as solar, wind, wave and hydroelectric.

Tasmania island state of Australia

Tasmania is an island state of Australia. It is located 240 km (150 mi) to the south of the Australian mainland, separated by Bass Strait. The state encompasses the main island of Tasmania, the 26th-largest island in the world, and the surrounding 334 islands. The state has a population of around 533,308 as of March 2019. Just over forty percent of the population resides in the Greater Hobart precinct, which forms the metropolitan area of the state capital and largest city, Hobart.

Contents

Technical details

Part of the Mersey Forth scheme that comprises eight hydroelectric power stations, the Fisher Power Station is the second station in the scheme. The power station is located in the upper reaches of the Fisher River. The station is supplied with water from Lake Mackenzie, supplemented by water run-off from the plateau and by water pumped from Yeates Creek and Parsons Falls pumping stations. Water flow to the station is via a 6.5-kilometre (4.0 mi)-long flume, siphon and canal and then a 5.2-kilometre (3.2 mi)-long vertical shaft, inclined shaft, tunnel and surface penstock. The water descends 650 metres (2,130 ft) from the lake to the power station and then flows 4 kilometres (2.5 mi) before flowing into Lake Parangana. [2]

Mersey River (Tasmania) river in Australia

The Mersey River is a river on the north-west coast of Tasmania, Australia. The city of Devonport is situated at the river's mouth on Bass Strait.

Forth River (Tasmania) river in Australia

The Forth River is a perennial river located in northwest Tasmania, Australia.

Lake Mackenzie is a lake in the Central Highlands area of Tasmania, Australia. The lake is formed by a dam and is part of Tasmania's hydro electric scheme operated by Hydro Tasmania.

The power station was commissioned in 1973 by the Hydro Electric Corporation (TAS) and the station has one Fuji Pelton turbine, with a generating capacity of 46 megawatts (62,000 hp) of electricity. The station output, estimated to be 240 gigawatt-hours (860 TJ) annually, [1] is fed through an 11 kV air-blast circuit breaker to TasNetworks' transmission grid via an 11 kV/220 kV Siemens generator transformer T1 and a second transformer T2, accepts the station 22 kV output from Rowallan Power Station. [3]

Hydro Tasmania hydro electricity developer, and electricity provider in Tasmania, Australia

Hydro Tasmania, known for most of its history as the Hydro-Electric Commission or The Hydro, is the trading name of the Hydro-Electric Corporation, a Tasmanian Government business enterprise which is the predominant electricity generator in the state of Tasmania, Australia. The Hydro was originally oriented towards hydro-electricity, due to Tasmania's dramatic topography and relatively high rainfall in the central and western parts of the state. Today Hydro Tasmania operates thirty hydro-electric and one gas power station, and is a joint owner in three wind farms.

Water turbine type of turbine

A water turbine is a rotary machine that converts kinetic energy and potential energy of water into mechanical work.

Voltage voltage is what makes electric charges move.

Voltage, electric potential difference, electric pressure or electric tension is the difference in electric potential between two points. The difference in electric potential between two points in a static electric field is defined as the work needed per unit of charge to move a test charge between the two points. In the International System of Units, the derived unit for voltage is named volt. In SI units, work per unit charge is expressed as joules per coulomb, where 1 volt = 1 joule per 1 coulomb. The official SI definition for volt uses power and current, where 1 volt = 1 watt per 1 ampere. This definition is equivalent to the more commonly used 'joules per coulomb'. Voltage or electric potential difference is denoted symbolically by V, but more often simply as V, for instance in the context of Ohm's or Kirchhoff's circuit laws.

See also

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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. "Fisher Power Station: Technical fact sheet" (PDF). Mersey-Forth Catchment. Hydro Tasmania . Retrieved 3 July 2015.