most of sydney s electricity is supplied from coalfired power stations outside of the sydney basin and hence not all electricity consumption is attributed to sydney s households and industries further nsw s largest energyintensive industries specifically steel and aluminium are also located outside of sydney though still within the greater metropolitan region in wollongong to the south and the hunter region to the north nevertheless by global standards sydney s ghg emissions remain exceptionally high due to high dependence on relatively low priced coal fired power high population growth rates high private vehicle dependence and historic reliance on wasteful and energyinefficient household and industry practices