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Value adding in Australia - the beginning of the end? : Comments
By Viv Forbes, published 24/5/2011Xstrata's abandonment of smelting in Mt Isa shows where Australia is heading under a carbon tax.
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For a typical mining operation, transport fuels may account for about 5% of its costs and electricity another 5% (total 10%). A 6c per litre increase in the current diesel price (it is excise-free and costs them less than $1.00/L) would add about 0.33% to costs. These industries pay close to wholesale price for electricity, 6 – 7 cents per unit. With a $25/ t CO2 carbon price, their electricity price would go up 30% to 9c per unit adding less than 2% to total costs. With profits margins 10-25% common in the mining industry, a 2.5% increase in their cost of production is not going to break them.
From my experience in assessing energy use in mines, I know that most can save at least 10% on fuel and 5% on electricity by implementing energy efficiencies with payback times of less than 2 years. By radical redesigning of mines, replacing trucks and bulldozers with conveyor belts, slurry pipelines and cable skips, energy savings of 30% can be achieved. Such savings would more than negate the cost impact of a carbon price, as is the intention.............
Non-ferrous metal refining uses enormous amounts of electricity - More than 20% for aluminium smelting - by far the most energy and emissions intensive of our industrie. It accounting for a whopping 6% of Australia’s CO2 emissions and provides only 0.6 per cent of manufacturing employment; 1.3 per cent of the manufacturing sector’s share of GDP. Smelters include 3 of the 10 largest mineral corporations in the world and are more than 50% foreign owned. The most polluting of these are the only operations that may be forced offshore under a carbon price e.g , smelters in Victoria which for more than 25 years have made enormous profits and paid less than 2c / kWh for electricity for dirty brown coal electricity subsidized by Government. This industry, more than any other needs a carbon price as an incentive to clean up its production.