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About

About Us

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 25 separate patent families in 70+ countries to date.

We enable new printed electronic products using lightweight films and high-volume manufacturing processes.

Our Story

Our journey began with the fusion of ideas from high-volume manufacturing, advanced materials processing, and stealth tech.

2011

Microgroove technology

Dr. John Topping invents microgroove architecture and files the first patent

2012

Big Solar Ltd founded

Dr. John Topping and Saul Joicey establish the business to commercialise microgroove technology

2013

First investment

Ex-Eaga plc management team joins Big Solar and provides first substantial equity investment

2014

Proof of concept

Additional investment secured to continue proof of concept work and initial team members employed

2015

Solar film validated at lab scale

University of Texas validation, first external scientific paper published and further investment secured

2016

Roll-to-roll capability

Roll-to-roll vacuum coater delivered and commissioned

2017

Energy storage proof of concept

Initial manufacturing trials for capacitors completed with commercial partner

2018

Rapid improvement in solar film

Solar film efficiency reaches 7%. Company renamed to Power Roll Limited

2019

First commercial license

First commercial license and joint venture with Deki Electronics. Second paper published in Energy & Environmental Journal. Improved cell efficiency to 11%

2020

Second commercial agreement

Agreement signed with UK defence firm. Solar demonstrated on 20cm2 film samples

2021

Secured £5.8M funding for scale up and commercialisation

2021

Moved into new HQ and Pilot Plant

Our Team

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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