Power Station
 
In Victoria, most electricity is generated by brown coal-fired power stations. Electricity is a major ingredient in the making of Alcoa’s aluminium at the Point Henry Smelter. 
 
At Alcoa Anglesea, once the brown coal is taken out of the mine, it is delivered firstly to the primary crusher where it gets crushed and broken down to around the size of a soccer ball and smaller.
 
A conveyor then transports the crushed coal to two live stockpiles that hold equal to 1.5 days supply for the power station.
 
The coal is then fed into the secondary crusher that breaks it down further, to a size less than a tennis ball.
 
From this point, the coal travels along the main conveyer system and is stored into six hoppers, ready to be pulverised into a fine powder.
 
This powder is dried and fed into the power station’s boiler, which is unique to Australia, as it stands at 57 metres from ground level.
 
Hot gases heat the water in the tubes lining the boiler walls to make high pressure steam that drives the turbine blades to spin at high speed and interact with the rotor to create electricity.
 
This electricity is then transported to the Point Henry aluminium smelter through a 45km high-voltage line.
 
In response to the 2009 Black Saturday Bushfires, the Victorian Bushfire Royal Commission was established to investigate causes, responses and how much devastating fires could be prevented from happening again.  Electricity infrastructure was determined to have caused a number of fires, including the Kilmore fire, one of the most deadly.  To reduce the future risk of power-related fires, the Commission's final report had eight recommendations related specifically to electricity assets.  The Electricity Safety (Bushfire Mitigation) Regulations 2003 were amended to give effect to these recommendations and includes the provision for the preparation of bushfire mitigation plans by specified operators which Alcoa has prepared and is available for download here. 

Alcoa Anglesea power station

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Coal travels through several bunkers, crushers and conveyors in the power station

Alcoa Anglesea power station

Click image to enlarge.


An Alcoa Anglesea employee inspects the furnace