As mining industry leaders reassess their ESG goals, many companies have become interested in microgrids. Jane Marsh, Editor-in-Chief of Environment.co, reflects on how these products can deliver measurable and lasting impact that improves sustainability and inspires stakeholders.
As corporate leaders reassess their environmental, social, and governance strategies, many have considered how microgrids can enhance their decarbonization plans. Sites used by the mining industry are prime targets, especially as efforts to improve sustainability continue. What efforts have been made so far and why are they important?
Aims to operate entirely on renewable energy
Decision-makers at Australia’s Oz Minerals began investigating how they could power some of their sites with renewable energy a few years ago, but at the time they thought the prospect was unfeasible. Recently, leaders have turned their attention to the West Musgrave site, which mines nickel and copper. Key components of decarbonization strategies include microgrids and electric transport trucks.
The brand’s overall goal is to meet all of the site’s energy needs through renewable sources. Microgrids play a key role in that goal, as officials expect them to supply more than 80% of the goal, operating as the world’s largest renewable asset of its kind.
The company’s model represents an optimal combination of approximately 60 megawatts of solar power and 90 megawatts of wind power, along with a large battery. However, those overseeing the project still need to finalize battery details. This example shows that it is worth investigating possibilities and taking decisive action, even if executives cannot act immediately.
Restructuring South Africa’s mining industry
In South Africa, mining is one of the largest industries in the country and continent. A variety of factors, including power shortages and stakeholder pressure, led management to strongly consider moving to renewable energy. Microgrids are here to stay, primarily to increase resiliency.
Large mines could face losses of up to US$100 million after a major power outage. However, industry analysts believe that renewable industrial infrastructure, including microgrids, can reduce risks. Many companies have the technology to switch between intermittent renewable energy sources and engine-based power generation. This feature ensures that operations run smoothly regardless of fluctuations in energy-related factors.
Some modules attached to microgrids use excess waste heat to generate electricity, increasing the efficiency of gas engines. These possibilities demonstrate the benefits of thinking creatively about decarbonization strategies, especially when many of the options are likely to have measurable impacts.
This is not the only example of people trying to resolve past problems and pursue a brighter future. Superfund sites in the United States are contaminated areas with an above-average risk of toxic releases. However, research shows that using these Superfund sites for renewable energy could generate more than 300 megawatts of electricity and contribute to a greener future for this country.
Microgrids bring about sustainable change
These compelling examples demonstrate why mining leaders need to incorporate microgrids into their decarbonization strategies. Determining the best approach takes time and dedication, but making informed choices can strengthen resilience and move companies closer to their ESG goals. Individuals can seek advice from peers who have already adopted this approach and learn from real-life successes, setbacks, and recommendations.
Creating a comprehensive plan also improves return on investment, especially if stakeholders set time-based milestones related to ESG goals. Experts can gain executive buy-in and increase accountability across the organization.
Author biography
Jane Marsh is an experienced environmental journalist and Editor-in-Chief of Environment.co, specializing in in-depth coverage of environmental trends, sustainability and the evolving energy landscape. Jane brings a keen perspective to the intersection of energy innovation and industry practices through work that has been featured in major platforms such as Renewable Energy Magazine, Manufacturing.net, and Nation of Change.
