The Anglesea Power Station was a
brown coal
Lignite (derived from Latin ''lignum'' meaning 'wood'), often referred to as brown coal, is a soft, brown, Combustion, combustible sedimentary rock formed from naturally compressed peat. It has a carbon content around 25–35% and is considered ...
powered
thermal
A thermal column (or thermal) is a rising mass of buoyant air, a convective current in the atmosphere, that transfers heat energy vertically. Thermals are created by the uneven heating of Earth's surface from solar radiation, and are an example ...
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 electricity generation, generation of electric power. Power stations are generally connected to an electr ...
located at
Anglesea, in
Victoria
Victoria most commonly refers to:
* Queen Victoria (1819–1901), Queen of the United Kingdom and Empress of India
* Victoria (state), a state of Australia
* Victoria, British Columbia, Canada, a provincial capital
* Victoria, Seychelles, the capi ...
,
Australia
Australia, officially the Commonwealth of Australia, is a country comprising mainland Australia, the mainland of the Australia (continent), Australian continent, the island of Tasmania and list of islands of Australia, numerous smaller isl ...
. The station had one
steam turbine
A steam turbine or steam turbine engine is a machine or heat engine that extracts thermal energy from pressurized steam and uses it to do mechanical work utilising a rotating output shaft. Its modern manifestation was invented by Sir Charles Par ...
, with a capacity of . It was operated by
Alcoa of Australia and supplied almost 40% of the electricity used by the company's
Point Henry aluminium
Aluminium (or aluminum in North American English) is a chemical element; it has chemical symbol, symbol Al and atomic number 13. It has a density lower than that of other common metals, about one-third that of steel. Aluminium has ...
smelter
Smelting is a process of applying heat and a chemical reducing agent to an ore to extract a desired base metal product. It is a form of extractive metallurgy that is used to obtain many metals such as iron, copper, silver, tin, lead and zin ...
, until the smelter's closure in August 2014.
The power station was brought online on 20 March 1969, and was supplied with brown coal from the adjacent
open cut mine
Open or OPEN may refer to:
Music
* Open (band), Australian pop/rock band
* The Open (band), English indie rock band
* ''Open'' (Blues Image album), 1969
* ''Open'' (Gerd Dudek, Buschi Niebergall, and Edward Vesala album), 1979
* ''Open'' (Got ...
, transported to the power station along a -long private road.
Overburden
In mining, overburden (also called waste or spoil) is the material that lies above an area that lends itself to economical exploitation, such as the rock, soil, and ecosystem that lies above a coal seam or ore body. Overburden is distinct from tai ...
was stripped and backfilled into the mined area by earthmoving contractors, using conventional power shovels and trucks. About 80 people worked at the mine and power station.
[Murphy, Noel, 20 February 2014, ]
80 jobs in doubt at Alcoa’s Anglesea power station
'', The Independent, Retrieved 28 August 2014
In June 2015, Alcoa announced that the power plant and mine would close at the end of August 2015, after the company was unable to find a buyer for the power station.
On 31 August 2015, the plant ceased operation as planned. Mine rehabilitation, and plant decommissioning and demolition, have been carried out.
History
In about 1955, test bores for coal were made at Anglesea by Roche Brothers, who were then operating a coal mine at nearby
Wensleydale
Wensleydale is a valley in North Yorkshire, England. It is one of the Yorkshire Dales, which are part of the Pennines. The Dale (landform), dale is named after the village of Wensley, North Yorkshire, Wensley, formerly the valley's market tow ...
, where the reserves were dwindling. An extensive coal deposit was found two kilometres to the north of the Anglesea township, and mining commenced in 1959 to supply brown coal to industry and institutions in the Geelong area.
The mining rights were taken over by
Western Mining Corporation (WMC) in 1961 to supply the power station planned by Alcoa of Australia. The Mines (Aluminum Agreement) Act of 1961 granted Alcoa a 50year exclusive right to explore and mine over some of leasehold land in the region.
After further drilling investigation, WMC relocated the mining operation to the east of the original mine, closer to the power station site and providing access to a larger coal reserve of . The total thickness of the coal seams is about , with total economic mineable reserves estimated at in the upper seam, and a further in lower seams. In 1992, the overburden to coal ratio averaged around 2.5 to 1, with an average coal thickness of .
Following negotiation with the Victorian government in 2011, Alcoa took up a 50-year extension of the Agreement under the ''Mines (Aluminium Agreement) Act 1961'', allowing for continued operation of the mine and power station until 2016. Alcoa outlined plans to expand the footprint of the mine by approximately 50 percent, taking the total disturbed area from approximately , from about 2016.
, approximately of coal had been mined, with about of brown coal being extracted annually to feed the power station that consumed of pulverised brown coal an hour. The coal at Anglesea has a high quality heat value when compared to other brown coals used to produce electricity in Victoria, but has a much higher level of sulphur, at around 3%, resulting in high levels of
sulfur dioxide
Sulfur dioxide (IUPAC-recommended spelling) or sulphur dioxide (traditional Commonwealth English) is the chemical compound with the formula . It is a colorless gas with a pungent smell that is responsible for the odor of burnt matches. It is r ...
(SO
2) being emitted.
Carbon Monitoring for Action estimated that the power station emitted of
greenhouse gases
Greenhouse gases (GHGs) are the gases in the atmosphere that raise the surface temperature of planets such as the Earth. Unlike other gases, greenhouse gases absorb the radiations that a planet emits, resulting in the greenhouse effect. T ...
each year as a result of burning the coal. The Anglesea power station drew its cooling water from six sub-
artesian well bores, supplemented with
rain
Rain is a form of precipitation where water drop (liquid), droplets that have condensation, condensed from Water vapor#In Earth's atmosphere, atmospheric water vapor fall under gravity. Rain is a major component of the water cycle and is res ...
water.
With the closure of the Point Henry Aluminium smelter, Alcoa applied for and was granted a licence in May 2014 by the Victorian
Essential Services Commission to sell electricity to the national electricity market. In February 2014, an Alcoa spokesperson said that it was seeking sale options for the power station, which might be closed if a sale was not possible.
In May 2015, Alcoa announced that it was unable to find a buyer for the plant, and would close it and the associated coal mine in August 2015.
Closure occurred as planned on 31 August 2015.
Criticism
Since 2011, Alcoa and the Anglesea power station had come under increasing local criticism, with residents forming the ''Surf Coast Air Action'' group concerned with health impacts of air pollution from the mine and power station. The group campaigned for reduced emissions from the power station and, following the closure of the Point Henry aluminium smelter, claimed that there was little justification for continuing the operation of the power station.
Alcoa rejected claims it had exceeded targets, saying it had met its worldwide targets for reducing sulphur dioxide emissions, although it did not dispute that Anglesea's SO2 emissions actually went up from a base figure of to in 2012-13.
In a December 2013 submission to the Essential Services Commission,
Friends of the Earth Australia argued that Alcoa should not be granted a licence to directly sell power to the
National Electricity Market
The National Electricity Market (NEM) is an arrangement in Australia's electricity sector for the connection of the electricity transmission grids of the eastern and southern Australia states and territories to create a cross-state wholesale ele ...
for four reasons: no additional coal-fired power was needed, Alcoa has no social licence to operate in the energy market, local health concerns, and that continuing operation of the power station undermined efforts to tackle
climate change
Present-day climate change includes both global warming—the ongoing increase in Global surface temperature, global average temperature—and its wider effects on Earth's climate system. Climate variability and change, Climate change in ...
.
Alcoa's licence to supply electricity to the grid was approved, although community groups said the decision lacked transparency and legitimacy, because no community consultation had been conducted by the Essential Services Commission.
Protests
Two major protests in Anglesea occurred in 2014 regarding the future of the coal mine and power station. In July, over 500 people made up a human sign on the Anglesea beach saying "Shut it Down". On 10 August 2014, several hundred people attended a rally and march calling for the coal mine and power station to be closed.
See also
*
List of power stations in Victoria
*
State Electricity Commission of Victoria
The State Electricity Commission of Victoria (SEC, SECV or ECV) is a government-owned electricity company in Victoria, Australia. Originally established to generate electricity from the state's reserves of brown coal, the SEC gradually monopoli ...
References
External links
Alcoa of Australia: Anglesea Power Station
{{FormerVictorianPowerStation
Coal-fired power stations in Victoria (state)
Energy infrastructure completed in 1969
Former power stations in Australia