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Energy Intensity of Selected Products
Energy intensity for a range of our products is presented in Figures 48 to 51. Increased energy intensity from our petroleum products is due to a higher rate of drilling at Liverpool Bay in the UK and the Australian-operated assets. Energy intensity of our Queensland coal rose due to increased mining activities. Energy conservation initiatives, such as introduction of solar drying to reduce moisture content of the ore at QNI Yabulu Refinery resulted in the decrease of the energy intensity per unit of production. No significant changes were recorded for our aluminium products.
Figure 48.Energy Intensity of Selected Products- Petroleum products 1999/00 to 2002/03 |
Figure 49.Energy Intensity of Selected Products- QNI Yabulu Refinery 1999/00 to 2002/03 |
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Figure 50.Energy Intensity of Selected Products- Queensland coal 1999/00 to 2002/03 |
Figure 51.Energy Intensity of Selected Products- Aluminium 1999/00 to 2002/03 |
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Greenhouse Gas Intensity of Selected Products
Greenhouse gas intensity for a range of our products is presented in Figures 52 to 55. The greenhouse gas intensity for petroleum products rose slightly due to increased drilling activities, while the greenhouse gas intensity at QNI Yabulu Refinery decreased due to energy efficiency improvements in the refinery process.
Figure 52.Greenhouse Intensity of Selected Products- Petroleum products 1999/00 to 2002/03 |
Figure 53.Greenhouse Intensity of Selected Products- QNI Yabulu Refinery 1999/00 to 2002/03 |
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Figure 54.Greenhouse Intensity of Selected Products- Queensland coal 1999/00 to 2002/03 |
Figure 55.Greenhouse Intensity of Selected Products- Aluminium 1999/00 to 2002/03 |
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Water Intensity of Selected Products
Water intensity for a range of our products is presented in Figures 56 to 59. The sharp rise in water intensity for petroleum products is due to increased drilling and development activities. For Queensland coal and aluminium, there were reductions in fresh water intensity due to lower water consumption at the operations. No significant difference to previous years was recorded for QNI Yabulu Refinery.
Figure 56.Fresh Water Intensity of Selected Products- Petroleum products 1999/00 to 2002/03 |
Figure 57.Fresh Water Intensity of Selected Products- QNI Yabulu Refinery 1999/00 to 2002/03 |
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Figure 58.Fresh Water Intensity of Selected Products- Queensland coal 1999/00 to 2002/03 |
Figure 59.Fresh Water Intensity of Selected Products- Aluminium 1999/00 to 2002/03 |
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