Power-to-Food: protein from CO₂ and renewable hydrogen reaches commercial reality

Power-to-Food converts green hydrogen and captured CO₂ into protein via gas fermentation. Two years after the technology was profiled for Swiss readers, the picture is informative: Solar Foods reached commercial production in Finland and is launching in the US in early 2026, Econutri pivoted to pet food, and Arkeon filed for insolvency. The category is real, the economics are not yet settled.