4 Renewable energy in the Australian mining sector The Australian mining sector consumes roughly 500 petajoules per year, 10% of Australia’s total energy use, and consumption has risen at 60% per annum over the last decade1, driven primarily by increased mining volum The mining sector derives most of its energy from
16 ENERGY CONSUMPTION Bauxite mining requires only a small amount of energy compared to refining of bauxite and electrolytic reduction of alumina Diesel fuel (69%) and fuel oil (24%) provide the bulk of the energy used to mine and transport the bauxite The average energy consumption amounted to 153 MJ per dry
Source: US Energy Information Administration, Manufacturing Energy Consumption Survey 2006 Note: Extruded aluminum products are formed by forcing aluminum out of a die to form a shape rather than using a mold Aluminum production in the United States generally takes two ,
Energy Energy is a key resource in the production of both alumina and aluminium due to the energy intense nature of the business Production of alumina and aluminium are energy intensive processes using approximately 25MWh per tonne of alumina and 1575 MWh per tonne of aluminium
Bauxite mining requires relatively low energy inputs, compared to other steps in the aluminium production process – with less than 15 kilograms of fuel oil (mainly in the form of diesel for haul trucks) and less than 5 kWh of electricity consumed per tonne of bauxite extracted
document use the US average grid connection valu The use of US average grid values results in a higher reported tacit energy consumption value than the actual tacit value required for primary aluminum production The advantage of reporting primary production energy consumption based on
These challenges are met by the application of energy to accomplish the work that includes the direct use of electricity, fossil fuel, and manual labor The tables and analyses presented in this study contain estimates of electricity consumption for the mining and processing of ores.