Thyssenkrupp has taken a big step toward carbon-neutral steel production by demonstrating that hydrogen can be used to power a blast furnace. Thyssenkrupp has committed to a 30% emissions reduction 2030. The key to this technology will be a carbon-free supply of hydrogen, and two companies are working on this. Siemens is building an electrolysis plant in Germany that will be powered by wind turbines. Similarly, a CO2-neutral plant for the production of hydrogen recently began operation in Linz, Austria.