Our mission is to dramatically increase the worldwide uptake of solar power.
Power Roll’s disruptive technology relies on a novel architecture called “microgrooves”.
Very similar to a hologram, designed in unique energy-channeling patterns.
Microgrooves are the ideal platform for low-cost film-based manufacture of two-terminal devices.
Our technology is protected by 21 separate patent families in 70+ countries to date.
We enable new printed electronic products using lightweight films and high-volume manufacturing processes.
Our journey began with the fusion of ideas from high-volume manufacturing, advanced materials processing, and stealth tech.
Dr. John Topping invents microgroove architecture and files the first patent
Big Solar Ltd founded
Dr. John Topping and Saul Joicey establish the business to commercialise microgroove technology
Ex-Eaga plc management team joins Big Solar and provides first substantial equity investment
Proof of concept
Additional investment secured to continue proof of concept work and initial team members employed
Solar film validated at lab scale
University of Texas validation, first external scientific paper published and further investment secured
Roll-to-roll vacuum coater delivered and commissioned
Energy storage proof of concept
Initial manufacturing trials for capacitors completed with commercial partner
Rapid improvement in solar film
Solar film efficiency reaches 7%. Company renamed to Power Roll Limited
First commercial license
First commercial license and joint venture with Deki Electronics. Second paper published in Energy & Environmental Journal. Improved cell efficiency to 11%
Second commercial agreement
Agreement signed with UK defence firm. Solar demonstrated on 20cm2 film samples
Secured £5.8M funding for scale up and commercialisation
Moved into new HQ and Pilot Plant
We are Trusted Partners
Our business model is focused on building an ecosystem of licensed manufacturing partners to fully exploit the versatility of our technology.
Talent is the core of our success. Our team includes scientists, manufacturing experts and experienced leaders.
Market Development Partners
Collaborations and partnerships across industry, academia, and public research institutions.
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