Sparc Hydrogen Owners Commit A$1.3 Million to Solar Water Splitting

• Sparc Technologies, Fortescue and Adelaide University committed A$1.3 million ($908,000) to their joint venture Sparc Hydrogen, Sparc said on Oct. 20, 2026.
• SunHydrogen's modules topped 10% solar-to-hydrogen efficiency in Phase 1 lab tests, against a 0.76% peak for a 100-square-meter photocatalyst array in Japan.
• On-sun tests at Sparc Hydrogen's SHARP pilot plant in Roseworthy, South Australia, are planned for early 2027.

Sparc Technologies Ltd., Fortescue Ltd. and Adelaide University committed A$1.3 million ($908,000) to their solar hydrogen venture, Sparc Hydrogen, Sparc said on Oct. 20, 2026.

Sparc Hydrogen develops photocatalytic water splitting. A light-absorbing material placed in water uses sunlight alone to break it into hydrogen and oxygen, with no electrolyzer. The company's patented reactor concentrates sunlight on the material to improve the economics.

The money funds the next stage of a collaboration with US-based SunHydrogen Inc., announced on Aug. 11. In Phase 1 lab tests, SunHydrogen's modules exceeded 10% solar-to-hydrogen (STH) efficiency, according to Sparc. They also made more hydrogen per module under stronger solar concentration in Sparc Hydrogen's reactor.

Pure photocatalyst systems sit far lower. A 100-square-meter photocatalyst panel array in Japan peaked at 0.76% STH over months of field tests, University of Tokyo researchers reported in Nature in 2021. Solar cells wired to electrolyzers reach 30% in the lab, the paper noted.

The program in numbers

• A$1.3 million ($908,000) of new pro rata equity from all three shareholders, at the Reserve Bank of Australia's Oct. 20 rate of $0.6984.
• About A$468,000 ($327,000) comes from Sparc Technologies, whose stake stays at 36% after completion.
• About A$832,000 ($581,000) comes from Fortescue and Adelaide University, which together hold the other 64% (list.solar calculation).
• Above 10% solar-to-hydrogen efficiency for SunHydrogen's modules in Phase 1 lab tests, company-reported.
• More than 13 times the 0.76% field peak of Japan's 100-square-meter photocatalyst array, though lab and field results differ (list.solar calculation).
• 3 phases in the SunHydrogen program: lab tests (completed), integration work (under way) and on-sun trials at SHARP early in 2027.
• 4.5 years from laboratory research to an operating pilot plant, according to Sparc.

The funding also widens Sparc Hydrogen's search for materials to photoelectrochemical (PEC) cells and integrated PV-electrolysis (IPV-E) units, which its reactor can generally host. A newly hired Manager of Advanced Materials will source and test them.

Sparc Managing Director Nick O'Loughlin said the investment "reflects the ongoing commitment of all three shareholders despite the headwinds facing other green hydrogen projects and technologies."

The share subscription is due to complete around Oct. 27. Phase 3 on-sun tests of SunHydrogen's modules at the SHARP pilot facility in Roseworthy, South Australia, are planned for early 2027.