Spanish steel technology supplier SARRALLE has installed the first ladle preheating station capable of running entirely on green hydrogen, achieving zero CO2 emissions in this ladle in a Spanish steel mill. The installation of this ladle preheater station, capable of using green hydrogen, is a highly innovative project. The existing burner that used natural gas as fuel has been replaced by a oxy-combustion burner that can use 100% green hydrogen as fuel. In this way, CO2 emissions are eliminated, as only water vapor is generated in the combustion of green hydrogen. The new burner installed, is a dual burner and it can use natural gas as fuel or mixes of natural gas with hydrogen.The ladles are auxiliary equipment used in the steel melting plant, and are used to transport cast steel from the furnace to the casting area. SARRALLE is working with several steel manufacturers to adapt their ladle heaters from air combustion to oxy-combustion and to operate with Hydrogen, thus achieving significant energy savings and the reduction of CO2 emissions, and so that once they have a supply of hydrogen in their plants, they can operate with 100% green hydrogen.The main steelmaking equipment with large natural gas consumptions that can be conditioned to work with green hydrogen are the burners of the Electric Arc Furnace, Ladle Heaters, Tundish Heaters, Continuous Casting Oxyfuel-Cutting and the Rolling Mill Reheating Furnace . SARRALLE offers oxy-combustion and hydrogen technology applicable to all these equipment, thus enabling savings in natural gas consumption and the total decarbonization.