student
The article considers decarbonization in mining as an investment program, where measures are selected based on net present value and impact on operational sustainability. A framework is proposed that links the “cost of reduction” with cash flows: a correct baseline of emissions and energy, conversion of the marginal reduction curve to NPV/IRR, accounting for reliability and downtime risk. It is shown how portfolios are formed from solutions with different correlations: demand-driven ventilation and frequency drives, conveyorization and trolley traction, sorting by sensors and press-roll crushers, electrification, methane capture and utilization, green electricity contracts and storage. Step-by-step “gates” for decision making and monitoring and verification requirements are discussed. The result is the practical limits of applicability, at which emissions reduction consistently increases the margin and reliability of production.
decarbonization, mining, NPV, portfolio, demand-side ventilation, conveyorization, electrification, sensor sorting, compactor crushers, methane capture, renewable energy, power supply agreement, storage, monitoring and verification
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