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Case study

Sunman flexible eArc technology a solar revolution

Flexible panels offer flexible solutions

Sunman is developing technology with the potential to revolutionise the use of solar PV in Australia, producing lightweight, flexible panels that can be used across a wider range of applications than existing glass panels.


CEFC investment


lighter than glass panels


our untapped rooftop potential

The efficiency, quality, durability and cost of the eArc panels gives them a competitive edge over similar products on the market. The next frontier is to deliver on their potential to encase the exterior of a building by integrating the technology into construction material.
Dr Zhengrong Shi
Founder, Sunman

Our investment

The CEFC has committed a total of $19.7 million to Sunman across two capital raisings. Our commitment, through the Clean Energy Innovation Fund managed by Virescent Ventures, is helping Sunman further develop and deploy the technology behind its eArc solar panels and top optimise its installation processes.

our impact

Sunman’s innovative eArc solar panels, made from a lightweight polymer composite material, are 70 per cent lighter than a glass panel, making them cheaper to transport and easier to install because they can be glued to a surface.

The eArc panels can be moulded to contoured surfaces offering potential for use beyond conventional rooftops, as mobile power generation for remote sites and vehicles, and in construction materials to encase buildings. They have been installed at the Australian National Maritime Museum in Sydney, which had been unable to support glass panels because of the steep slope of its roof. The Museum estimates that the panels will cut its electricity bill by about $50,000 a year.

The technology behind the eArc panel was invented by solar energy entrepreneur Dr Zhengrong Shi, a graduate of the UNSW School of Photovoltaic and Renewable Energy Engineering and a pioneer of photovoltaics. According to Dr Shi, the eArc panel will enable businesses to maximise the potential of their ‘idle’ roof assets to reduce their electricity costs while achieving their corporate sustainability targets.

The eArc innovation could significantly increase Australia’s rooftop solar penetration. Australia is already a world leader in solar power, with more than 2.4 million rooftop solar PV systems on residential dwellings, with a combined generation capacity of 9.7 GW.1

According to 2019 research co-developed by the CEFC, Australia is using less than five per cent of its capacity for rooftop solar.2Much of this untapped potential is in commercial and industrial sites, which have an estimated capacity of 28 GW of rooftop solar.

Read our article on these innovative eArc panels with Dr. Shi

Learn more about the Clean Energy Innovation Fund

Learn more about Sunman

1 Quarterly Carbon Market Reports, Clean Energy Regulator, June 2020
2 How much rooftop solar can be installed in Australia? Institute for sustainable futures, the Australian PV Institute and the University of New South Wales, 2019


Pioneering solar innovations with Sunman

Sunman founder Dr Zhenrong Shi shares his inspirational story, explains why curiosity is so important for entrepreneurs and tells how his eArc solar panels can revolutionise the solar industry.

Last updated October 2023. National, Climate tech, Solar, Renewable energy
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