In the OxySteel project research is being conducted into energy efficiency and CO₂ reduction measures in steel production. As the metallurgical industry relies heavily on fossil fuels, energy efficiency and CO₂ reduction measures in this sector are crucial to meet the CO₂ reduction targets. The development and implementation of a new process design using oxy-fuel combustion and Carbon Capture and Utilization (CCU) is expected to save fuel and CO₂ emissions. The research project focuses on the optimal integration of the technologies into the overall energy system. The process design developed will be tested in an industrial environment at the demonstration site in the Breitenfeld steelworks.