The steel and technology group Salzgitter AG is using green hydrogen as a part of the program to reduce the company’s carbon footprint by 2033.  Part of the initiative is the EU-funded hydrogen project GrlnHy2.0, demonstrating the world’s largest high-temperature electrolyzer to produce green hydrogen.  The electrolyzer recently achieved a record efficiency, producing 200 Nm3 of green hydrogen per hour. The electrolyzer is developed and manufactured by the German electrolysis group Sunfire.