The electrification of work machinery in the mining industry is progressing step-by-step. Often, the diesel engine is retained, allowing machines to operate in a diesel-electric hybrid mode or use diesel to generate electricity via a generator. When infrastructure allows, the most common option is to supply power directly from the grid. The use of batteries in work machinery is still limited, and this area is under development.
We presented Supply Chain Manager Kai Lahdenpohja with three current topics about mining and electrification – here are his thoughts.
Fossil fuels are more reliable for mining operations.
FALSE. Electricity is increasingly becoming a more reliable source of power for mining operations due to advancements in energy storage and renewable energy technologies.
Unlike fossil fuels, which are subject to market volatility, transportation challenges, and supply chain disruptions, electricity can be generated on-site using renewable sources such as solar, wind, or hydropower. These renewable sources reduce dependence on external fuel supplies and provide a more stable, cost-effective, and sustainable energy solution.
Additionally, electric equipment has fewer moving parts and often requires less maintenance than fossil fuel-powered machinery, leading to fewer breakdowns and more consistent operation, further enhancing reliability.
Electrification and digitalization also drive a leap in efficiency enabled by the optimization of usage through smart devices. Smart machines allow for real-time monitoring and predictive maintenance.
Electricity-powered mining is not necessarily more sustainable than fossil fuels.
FALSE. Electric equipment produces no direct emissions at the site of operation, unlike diesel engines which release pollutants like carbon dioxide, nitrogen oxides, and particulate matter into the atmosphere.
Even if the electricity used comes partially from fossil fuel sources, advancements in grid infrastructure and the increasing share of renewable energy in power generation mix make the overall carbon footprint of electric mining equipment significantly lower.
Additionally, using electricity allows for the integration of renewable energy sources, such as solar or wind, directly at mining sites, further reducing emissions and environmental impact. Therefore, the transition to electricity in mining aligns with global efforts to reduce greenhouse gas emissions and environmental degradation.
In an urban environment, electrification may soon even be a legal requirement, as it results in less noise and better air quality. Why not start preparing now?
Increasing electrification in mines improves the safety of mining operations.
TRUE. Electrification in mines reduces reliance on diesel-powered machinery, which can significantly improve safety by lowering the risk of fires and explosions associated with the storage and use of flammable fuels. Electric equipment also produces less noise, vibration, and harmful emissions, creating a healthier work environment that reduces the risk of respiratory problems and long-term health issues for workers.
Additionally, electric machinery can be more precisely controlled and automated, reducing human error and exposure to dangerous conditions, such as underground environments with poor ventilation or unstable structures. This overall reduction in health and safety risks makes electrification a safer option for mining operations.
