Essential minerals used in renewable energy sources

Industry insights April 8, 2025

As the world transitions towards greener alternatives, the demand for reliable renewable energy sources continues to grow. Behind the scenes, minerals play a vital role in supporting this shift. At LKAB Minerals, we supply a range of mineral products that contributes to energy generation across multiple technologies. From insulation to heat resistance, each mineral offers distinct advantages for maintaining efficiency and performance in renewable systems. Here, we explore some of the most widely used minerals in the energy sector and the specific benefits they bring to the table. 

Duraheat: Ensure thermal efficiency in solar systems

Solar panels and heating systems increasingly rely on advanced materials to optimise energy absorption and storage. Duraheat is one such innovation, designed to improve thermal efficiency in solar thermal panels. By enhancing heat conductivity and retention, Duraheat ensures that more energy from the sun is effectively captured and used for heating water and interiors. It’s particularly useful in rooftop installations and sustainable housing developments where space efficiency and performance matter. With Duraheat, solar energy becomes a more reliable and effective renewable energy source. 

an image showing solar panels as renewable energy sources

Molybdenum: High-performance in energy infrastructure 

Widely known for its exceptional strength and heat resistance, Molybdenum is a key component in alloy steels used in energy systems. In renewable energy applications – especially in wind and hydro turbines – Molybdenum-enhanced alloys are used for bearings, rotors, and heat exchangers due to their ability to perform in high-stress environments. Its corrosion resistance also makes it ideal for offshore and coastal energy installations, where durability against weather and sea conditions is critical. Molybdenum supports the long-term reliability of infrastructure that underpins many renewable energy sources. 

MagnaDense: Support for offshore wind power 

MagnaDense, a high-density aggregate made from iron ore, is essential in offshore wind farm construction. Its primary use is in creating heavyweight concrete foundations and ballasts that stabilise turbine structures against harsh marine conditions. With the growth of offshore wind as a leading renewable energy source, MagnaDense ensures structural integrity while reducing the footprint of underwater installations. Its density also contributes to radiation shielding in nuclear facilities and other energy applications, making it a truly versatile mineral solution. 

MagniF and MagnaChem: Versatile materials for electricity generation 

MagniF is a ferromagnetic material used in a variety of energy-related applications, particularly in electronics and electric motors. Its strong magnetic properties make it essential in the development of efficient generators and power conversion systems. Meanwhile, MagnaChem is used in the production of ferric chloride – a key compound in water treatment processes associated with hydropower facilities. These minerals contribute to the efficiency and environmental safety of renewable energy sources by enabling better power management and cleaner operations. 

hydropower water system

MicaFort: Thermal and electrical insulation for energy applications 

Derived from phlogopite mica, MicaFort provides superior thermal and electrical insulation. In renewable energy systems – particularly those involving wind turbines, electric vehicles, and solar inverters – MicaFort is used in coatings, sealants, and insulation components. It helps protect against heat build-up and electrical discharge, ensuring the longevity and safety of critical infrastructure. Additionally, MicaFort is used in industrial coatings, improving the performance of materials exposed to high temperatures, such as those found in solar and geothermal settings. 

Tantalum: Rare metal powering electronic components 

Tantalum is a rare and highly corrosion-resistant metal that plays a significant role in the production of capacitors and high-performance electronics. As renewable energy sources expand their reliance on smart grids, sensors, and battery management systems, tantalum’s value increases. Its ability to operate at high voltages in compact sizes makes it ideal for applications in wind turbine controllers, solar inverters, and electric vehicles. While rare, its functionality is vital for maintaining efficient and responsive energy systems. 

Minerals driving the transition to renewable energy 

From dense aggregates that stabilise wind turbines to metals that support the electronics behind solar energy capture, industrial minerals are critical enablers of the renewable energy transition. LKAB Minerals provides material solutions that enhance performance, durability, and environmental responsibility across a wide range of technologies. 

an image showing wind turbines

Whether you’re building solar panels with thermal-enhancing DuraHeat, constructing offshore platforms with MagnaDense, or insulating power systems with MicaFort, our minerals are powering innovation at every stage. As we move towards a responsible future, these materials ensure that renewable energy sources can meet increasing demand with efficiency, safety, and reliability. For more information on our sourcing practices and initiatives, visit our download centre. To explore our full range of products, visit our product page, and follow us on LinkedIn to stay updated with our latest news and developments.