Primary iron metal is produced through the CO2-intensive carbothermic reduction of iron oxides in blast furnaces. Since carbon is used as both a reducing agent and fuel for the process, blast furnace pig iron cannot eliminate its CO2 emissions. Therefore, in recent years, carbon-free electrochemical processes fed by renewable electricity have been investigated as potential green alternative routes for iron production paving the way for a net zero economy. The most important European initiative in this direction was the SIDERWIN project. This paper deals with the fundamentals of iron production with the SIDERWIN approach and presents the results of iron production utilizing as potential raw materials either Bauxite Residue or the cinder from the reductive, with hydrogen, soda roasting of Bauxite residue.