Australia used concentrated sunlight to split water directly into hydrogen without an electrolyzer; SunHydrogen’s coaster-sized module hit 10.8%, while its 1,200-cm² version reached 9%

SunHydrogen and Australias Sparc Hydrogen are cutting out traditional electrolyzers to make green hydrogen. By placing semiconductor absorbers directly into water, their panels use sunlight to generate fuel on-site. A small module hit 10.8% efficiency, while a larger panel reached 9%. Using concentrated sunlight helped push performance past the 10% mark needed for commercial viability.

Raccontata daeconomictimes.indiatimes.com