Largest high-temperature electrolyser sets efficiency record
SOE technology used by German steelmaker Salzgitter consumes less power than conventional electrolysers, manufacturer Sunfire says
The world’s largest high-temperature electrolyser, deployed by steelmaker Salzgitter under an EU-funded green hydrogen project called Grinhy2.0, has achieved record efficiency levels. The electrolyser, which was developed and manufactured by German manufacturer Sunfire, uses solid oxide electrolysis (SOE) technology and draws on waste heat from Salzgitter’s steelmaking process. The electrolyser produced 200m³/hr of green hydrogen at an electrical efficiency of 84pc el,LHV—a measure of the energy contained within the hydrogen compared with the electricity used to make it. More established technologies such as alkaline electrolysis (AE) or proton-exchange-membrane electrolysis typically reach
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