Coal Mining
 
The brown coal deposits in Anglesea were laid around 40 million years ago. With a calorific value of about 15 megajoules per kilogram, this high quality coal is found between and separated by approximately 40 metres of sands and clays. To date, roughly 80 million tonnes of this coal remains unmined.
 
To provide brown coal for its power station, Alcoa Anglesea operates an open-cut mine to a depth of around 60 metres below sea level.

Using this high quality brown coal, with a heat value of just over 15,000 joules per gram, it takes about one tonne of Anglesea coal to produce 1.3 megawatt hours of power, compared to around two tonnes of coal that it takes to generate the same power in the La Trobe Valley area. The power station provides 41% of the electricity for the Alcoa aluminium smelter at Point Henry.
 
Alcoa Anglesea extracts brown coal and moves overburden within the open cut mine using excavators (mechanical diggers) and 60 tonne dump trucks. These dump trucks are designed with special high-volume bodies to carry the comparatively lightweight coal. The excavators load the coal onto trucks for delivery to the power station.



Anglesea Mine Lease Renewal


Alcoa is working with the State Government to take up the second 50 year term of its mining lease.
Read more about this project here

Alcoa Anglesea coal mine

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Alcoa Anglesea coal mine

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Brown coal from the Alcoa Anglesea mine is loaded into a truck

Alcoa Anglesea coal mine

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A piece of brown coal from the Anglesea mine