Portland aluminium smelter

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The Portland aluminium smelter is located at Portland, Victoria, Australia. The smelter has a production capacity of 345,000 tonnes of aluminium per year [1] The smelter is a joint venture owned by [2] Alcoa World Alumina and Chemicals, 55% (owned by Alcoa 60% and Alumina Limited 40%), CITIC 22.5% and Marubeni 22.5%. Alcoa manages the smelter operations.

The smelter was commissioned between 1986 and 1988. It consists of two potlines of Alcoa A817 reduction cells, operating at a line current of over 310kA.[3] Portland is the only smelter using this technology.[4] Alumina is delivered bi-weekly from Western Australia via a ship known as "The Portland". From the harbour, it is transported to the smelter via an enclosed conveyor belt several kilometres long. The majority of aluminium ingots are trucked out of Portland to other ports, although some is shipped directly from the Port of Portland.

The smelter has been the subject of significant controversy since its inception in 1986. In 1984, under the leadership of John Cain, the ALP government signed a joint venture agreement with Alcoa to build an aluminium smelter at Portland. The State Government entered into a deal with Alcoa, which provides for subsidised electricity until 2016, at a price linked to the world price of aluminium. It is estimated that the cost of electricity for the smelter is $14 per MWh (1.4 cents per kWh),[5] and that it has cost the state more than $2 billion over 20 years.[6] The Portland smelter is believed to consume between 8 and 10 per cent of the state's electricity.[6] Given that most of this energy is derived from brown coal in the Latrobe Valley, the production of aluminium is a significant contributor to Victoria's greenhouse emissions.

In March 2010 it was announced that the operators of Loy Yang A power station (Loy Yang Power) had signed a contract with the smelter operators for the supply of electricity to power aluminium smelters at Portland and Point Henry until 2036, the existing power contracts expire in 2014.[7]

See also[edit]

References[edit]

  1. ^ "Alcoa smelting capacity". Retrieved 2007-08-20. 
  2. ^ "The AWAC Business". Archived from the original on 2007-08-29. Retrieved 2007-08-25. 
  3. ^ Purdie, J.; Nahoum, F.; Guirguis, G.; Donehue, S. (2001). "Improving the Stability of the A817 Pot at Portland Aluminium". Seventh Australasian Aluminium Smelting Technology Conference and Workshops. 
  4. ^ "Alton Tabereaux - 'Prebake Cell Technology: A Global Review', JOM, 52 (2), pp 22-28.". Retrieved 2007-08-19. 
  5. ^ "Hal Turton - 'The Aluminium Smelting Industry' - January 2002". Retrieved 2007-08-13. 
  6. ^ a b Birnbauer, William; Dowling, Jason (2006-05-21). "The Age - 'Greenhouse showdown over smelter' - May 21, 2006". Melbourne. Retrieved 2007-08-13. 
  7. ^ Royce Millar, Ben Schneiders and Adam Morton (March 2, 2010). "Alcoa deal locks in jobs - and emissions". Sydney Morning Herald (www.smh.com.au). Retrieved 2010-03-02. 

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Coordinates: 38°23′14″S 141°37′48″E / 38.38722°S 141.63000°E / -38.38722; 141.63000