Energy Consumption in mining refers to the total quantity of energy used by a mining operation over a defined period — typically expressed in gigajoules (GJ), megawatt-hours (MWh), or tonnes of oil equivalent (toe) — across all operational activities including extraction, ore processing, transportation, site services, and administration. Mining is one of the most energy-intensive industries globally, and energy consumption in bauxite, gold, iron ore, and diamond operations varies significantly depending on ore grade, deposit type, processing route, mine depth, and geographic location. In gold mining, comminution — the crushing and grinding of ore — typically accounts for more than 50% of total site energy consumption due to the energy-intensive nature of reducing hard rock to fine particles for leaching or flotation. Iron ore operations consume large quantities of energy in pelletizing, sintering, and magnetic separation processes. Bauxite mines expend significant energy in overburden removal, washing, and drying circuits, while diamond mines consume energy intensively in kimberlite crushing, dense medium separation, and X-ray sorting. Accurate tracking and reporting of energy consumption is essential for regulatory compliance, carbon accounting, cost control, and the development of effective energy management strategies.
