Stegra green iron - ironmaking with green hydrogen

Green iron

We offer iron produced using renewable energy sources ensuring a cleaner and greener tomorrow. Welcome to the future of ironmaking!

What is green iron?

When reducing iron ore into sponge iron (also called direct-reduced iron), fossil fuels are normally used. Iron is often reduced in blast furnaces, contributing significantly to pollution and emissions due to the use of coal. When the oxygen from the ore bonds with carbon from the coal, CO₂ is generated. But thanks to green hydrogen, we're revolutionizing this process. Produced using renewable energy sources like wind and hydropower, green hydrogen replaces coal and natural gas in the reduction process. This eliminates CO₂ emissions and enables a cleaner, greener approach to iron production. Instead of CO₂, the emission generated when oxygen from the iron bonds with our green hydrogen is H₂0 – just plain water.

How we produce green iron

The tower where the magic happens!

In our upcoming Boden plant, a towering 145-meter direct reduction tower is under construction, and will soon stand poised to transform iron ore into sponge iron. The iron will serve for our various steel products, yet a portion will also be marketed as hot briquetted iron, or HBI, to other steel manufacturers that want to move early into more sustainable steel production. As one of the first movers out there, we are working with our partners to create a market for green hot briquetted iron.

Check out the Boden Plant

Is it possible for all iron to become green?

To produce green iron, quality iron ore pellets are needed. These pellets must meet stringent criteria to ensure efficient conversion using green hydrogen. By selecting high-quality iron ore pellets from partners like Rio Tinto and Vale, we can optimize the green iron production process.