Clean Circles
Iron as energy carrier in a carbon-free circular energy economy
Iron as a reactive metal has enormous potential to boost the energy transition. The project Clean Circles teams up scientists from multiple disciplines to explore how the metal and its oxides can be used in a cycle as carbon-free chemical energy carrier to store wind and solar power.
Research partners
News
Picture: Clean Circles/ Marius Schmidt Picture: Clean Circles/ Marius SchmidtProgress on Iron as an Energy Carrier?
June 17, 2025
Jacob Beautemps from Breaking Lab visits Clean Circles
Jacob Beautemp from the science channel Breaking Lab presents Clean Circles and the concept of iron as an energy carrier in his latest video.
- Picture: Clean Circles/ Marius Schmidt Picture: Clean Circles/ Marius Schmidt
Clean Circles Closes First Chapter – and Opens the Next
June 13, 2025
Four Years of Research at the End-of-Project Meeting in Karlsruhe
At the final meeting of the Clean Circles research project, researchers gathered at the Karlsruhe Institute of Technology (KIT) to reflect on four years of collaborative work. The event featured presentations that not only reviewed past achievements but also looked ahead to upcoming projects and future challenges – with iron as a CO₂-free energy carrier at the center.
Funding
Clean Circles is funded by the Hessian Ministry of Higher Education, Research, Science and the Arts.
Contact
Dr.-Ing. Marius Schmidt
Managing director
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