
Our Technology
What is Advanced Water Splitting?
Advanced Water Splitting is an artificial photosynthesis process used for the dissociation of water into hydrogen (H2) and oxygen (O2), using light.
Three key ingredients for successful AWS are:
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Sunlight
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Water
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High efficiency, durable photocatalyst materials
The key barrier to the commercialisation of AWS to date has been the development of high efficiency photocatalysts and scalable, low-cost reactors.


The process mimics natural photosynthesis in plants, but instead of making sugars and oxygen, it produces clean hydrogen fuel.
Sparc Hydrogen's unique approach
Advanced Water Splitting splits water into hydrogen and oxygen, using only sunlight (no electricity)
Sparc Hydrogen’s patented solar reactor is demonstrated to improve the efficiency of AWS to obtain hydrogen from water. Given lower infrastructure requirements and energy use the ‘Sparc Green Hydrogen’ process has the potential to deliver a cost advantage over electrolysis along with being more flexible and scalable.

What makes our technology different?
Sparc Hydrogen’s patent pending solar reactor is one of the only known technologies globally combining concentrated solar with advanced water splitting.
Advantages include:
reduced photocatalyst use
modular design
higher solar-to-hydrogen efficiencies
excess heat can be captured and used
Development pathway
Sparc Hydrogen JV established in Q1 2022
Preliminary TEA confirms commercial potential in Q4 2022

Development of solar reactor prototype for on-sun testing in 2023

Pilot plant construction H1 2025 and operation through mid-2026

Scale up and commercialisation

Roseworthy Pilot Plant Progression
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