LKAB is thus provided with the optimum solutions early in the decision-making process, based on results obtained from the analysis. For example, the impact of deploying a future fleet of electric vehicles and chargers on the mine’s power distribution network can be assessed, as well as the need for power support sources like battery storage or microgrids, and how they should be designed, so that LKAB has a comprehensive portfolio of possibilities to choose from to fulfill its vision.
LKAB’s transformation comprises two parts – the creation of sustainable underground mining operations with increased productivity and lower environmental impacts, and the large-scale production of carbon-free sponge iron from the magnetite ore it mines, instead of traditional iron pellets.
LKAB plans to eliminate carbon from the energy-intensive iron ore refining process by using hydrogen made with carbon-free electricity to facilitate industrial-scale production of carbon-free sponge iron, instead of the traditional refining process that uses energy from fossil fuel to make iron pellets. This gives steel customers, who are the main customers for iron ore, direct access to an energy saving carbon-free product for their steelmaking process. LKAB is also developing new technological processes to extract critical minerals from its own mine waste.
Impact
Sustainable mines play an essential part in the carbon-neutral society. Globally, the iron and steel industry accounts for as much as a quarter of total carbon emissions from industry.
“At LKAB, we are committed to future sustainability. The support from Hitachi Energy provides necessary new insights on the way to CO2-free production, paving the way towards a new world standard of safe, profitable and sustainable mining,” says Per Tomas Uusitalo, Head of Development, Automation and Power, LKAB.
Challenge
- Targeting expanded production capacity and reduced CO2 footprint, without proportionally increasing energy consumption
- Focus on reduced CO2-emissions from mining operation, leading to increased electrification (e.g. battery-powered mining machinery)
- Need for energy optimization in the power system
- More complex power system drives the need for new analysis methods
- Need for fact-based decision-making to optimize operations
Solution
- Contributions to strategy development and implementation plan
- Development of a complete model of the current power system
- Energy losses analysis and reduction, implementation of electrification, energy storage and microgrids, resiliency of power supply, etc
- Model-based input to support the decision-making process
- Support in developing internal competency at LKAB in using deployed model
- A new analysis and planning framework for future power systems development
Impact