SunHydrogen Modules Exceed 10% Solar-to-Hydrogen Efficiency in Sparc Hydrogen Testing, Advancing to Pilot Scale
Rhea-AI Summary
SunHydrogen (OTCQB:HYSR) reported that its photoelectrochemical and integrated PV‑electrolysis modules achieved solar‑to‑hydrogen efficiency above 10% in testing at Sparc Hydrogen’s laboratories, and generated more hydrogen under concentrated sunlight. The companies signed a Technology Collaboration and Intellectual Property Protection Agreement to advance these modules toward pilot‑scale testing.
The 24‑month, phase‑based collaboration starts with laboratory work at increasing solar concentration, then, if milestones are met, moves to on‑sun testing at Sparc Hydrogen’s SHARP pilot facility in South Australia and a jointly funded levelized cost of hydrogen study. SunHydrogen keeps rights for decentralized hydrogen under natural sunlight, while Sparc Hydrogen receives rights for concentrated‑light applications and an 18‑month option to negotiate a supply or manufacturing license for SunHydrogen’s modules for use in its reactors.
Positive
- Solar-to-hydrogen efficiency above 10% in Sparc Hydrogen lab testing
- Modules produced more hydrogen under concentrated sunlight, supporting Sparc reactor economics
- 24-month phased collaboration with Sparc Hydrogen including pilot-scale SHARP testing
- Jointly funded study on levelized cost of hydrogen planned after testing
- SunHydrogen retains core rights in decentralized, single-sun hydrogen market
- Sparc Hydrogen gets 18-month option to negotiate supply or manufacturing license
Negative
- None.
AI-generated analysis. How Rhea-AI works. Not financial advice.
SunHydrogen's photoelectrochemical and integrated PV-electrolysis modules reached solar-to-hydrogen efficiency above
CORALVILLE, IA, Aug. 11, 2026 (GLOBE NEWSWIRE) -- SunHydrogen, Inc. (OTCQB: HYSR), the developer of a breakthrough technology to produce renewable hydrogen using only sunlight and water, today announced that it has entered into a Technology Collaboration and Intellectual Property Protection Agreement with Sparc Hydrogen Pty Ltd, a joint venture of Sparc Technologies Limited (ASX: SPN), Fortescue Ltd and the University of Adelaide. The agreement follows preliminary testing in which SunHydrogen's modules reached solar-to-hydrogen efficiency above
Solar-to-hydrogen efficiency measures how much of the energy in sunlight a device converts into hydrogen. Reaching double digits is a widely recognized milestone for technologies that split water directly with sunlight, and only a small number of groups worldwide have demonstrated it. In the same testing, SunHydrogen's modules produced more hydrogen as the sunlight reaching them was concentrated. That behavior supports higher production rates and is central to the economics of Sparc Hydrogen's concentrated-sunlight reactor.
Under the agreement, the two companies will test whether SunHydrogen's modules can be integrated into Sparc Hydrogen's reactors to lower the cost of producing hydrogen. The work begins with laboratory testing at increasing levels of solar concentration and, if agreed milestones are met, moves to on-sun testing at Sparc Hydrogen's SHARP pilot facility at Roseworthy in South Australia. Those results will feed a jointly funded study of the levelized cost of hydrogen, which is the all-in cost to produce one kilogram of hydrogen.
The collaboration runs for 24 months and is organized in phases, with independent review points and go or no-go decisions before each stage. Each company keeps ownership of the technology it brings to the collaboration and of its own improvements, and a joint steering committee oversees the work.
During the term, Sparc Hydrogen holds rights to apply SunHydrogen's technology in concentrated-light applications above an agreed concentration level, the field in which Sparc Hydrogen specializes. SunHydrogen retains all rights to its core market of decentralized hydrogen production under natural, unconcentrated sunlight. Sparc Hydrogen has also acknowledged that it is not developing its own photocatalyst or photoelectrochemical materials and is not working in SunHydrogen's field of single-sun water splitting.
If the collaboration is completed successfully, Sparc Hydrogen has an 18-month option to negotiate either a long-term supply agreement or a manufacturing license for SunHydrogen's modules for use in its reactors, together with a right of first offer over competing arrangements in that field during the option period.
Sparc Hydrogen's photocatalytic water splitting technology was invented by Professor Greg Metha, Professor of Chemistry and Acting Director of the Centre for Energy Technology at the University of Adelaide, whose research the company was founded to commercialize. In 2021, Professor Metha's group produced hydrogen using only concentrated sunlight, water and a photocatalyst, and his laboratory has pioneered photocatalytic reactors that operate under concentrated light. He also established the international Hydrogen Production Technology (HyPT) forum and serves as Australian Director of the NSF-CSIRO Global Center for Hydrogen Production.
“Seeing our modules tested above
“Sparc Hydrogen's strategy is to work with the world's leading developers of photocatalyst and photoelectrochemical materials, and this collaboration with SunHydrogen reflects that approach,” said Alana Barlow, CEO of Sparc Hydrogen. “We have seen solar-to-hydrogen efficiencies above
"Concentrated sunlight is a demanding environment for a photoelectrochemical device, so validating efficiency above
About SunHydrogen, Inc.
SunHydrogen is developing breakthrough technologies to produce renewable hydrogen in a market that Goldman Sachs estimates to be worth
About Sparc Hydrogen
Sparc Hydrogen is a joint venture between Sparc Technologies Limited (ASX: SPN), Fortescue Ltd and the University of Adelaide, developing green hydrogen technology using photocatalytic water splitting, a process that uses only sunlight, water and a photocatalyst to produce hydrogen without an electrolyzer. Sparc Hydrogen's patented reactor uses concentrated sunlight to improve the economics and scalability of the approach. To learn more, please visit www.sparchydrogen.com.
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