Our Story

Our journey began with a vision to re-invent solar technology. Since then we've come a long way and delivered on many significant milestones.


Microgroove technology

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


Big Solar Limited founded

Dr. John Topping and Saul Joicey

establish the business to commercialise

microgroove technology


First investment

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 capability

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


Secure 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

Core values

Our core values determine the way we operate and work with stakeholders



Our business model is focused on building an ecosystem of licensed manufacturing partners to fully exploit the versatility of our technology

Experienced leadership

We are led by a highly experienced management team with a track record of creating value in energy markets. We have a clear strategy in place to take our innovative technology to market and build a profitable and successful business


Our investment in research and development is delivering novel technology that we can apply to multiple applications and markets


Our working culture is dynamic, agile and driven by our talented team of technologists and manufacturing experts



Our business model and ability to enable manufacturing at scale equips us with the means to transform the global low-carbon energy market

Making a difference

We are proud that our technology is helping to tackle the climate emergency and enabling the supply of cheap, clean power in developing countries

Meet the team




Drew is ex CEO of Eaga plc, an energy efficiency business employing c5,000 staff. Drew led a business development programme which culminated in Eaga's flotation on the London Stock Exchange in 2007 at a valuation of c£450 million. He brings a wealth of experience, together with extensive private sector and government contacts in the renewables and wider energy space in both the UK and abroad (including Europe, North America and Asia).




Neil has a professional and energy services background and has held key roles in large energy services businesses. He was Director of Group Finance and Investor Relations of Eaga plc at the time of its purchase by a major UK Support Services company in April 2011. He stayed with the enlarged business to become the finance Director of its UK Services division, a £1.2bn business. Neil has specific experience in financing large scale renewables and PV projects. He joined Power Roll in January 2014 and is responsible for all aspects of Power Roll's on-going development and performance.

Dr Alexander

John Topping 

Chief Scientist

& Co-Founder

John is a research scientist continually developing novel solutions for products processes and material related problems. He has worked with Pilkington, UK Defence Agency, P2I, UK space agency and others over the last 18 years. Notable advances include first high range all solid state infrared adaptive stealth coating, 3D TV liquid crystal pixel reduction through advanced addressing scheme and new process for coating of organic materials for food packaging. John is the inventor of the Power Roll technology owned by Power Roll and continues to lead the development of the technology.

Process Technician

Material Research Scientist

Board and senior management team

Talent is the core of our success. Our team includes scientists, manufacturing experts and experienced leaders.




After graduating from Durham University with a BSc (Hons) in Chemistry, Cat joins the company after working in several different industries, both in analytical testing and production based roles. Cat’s previous position prior to joining Power Roll was an Analytical Technician testing chocolate at Cadbury’s.

Maintenance Technician



Christopher Bunn joined Power Roll at the start of 2019 as Maintenance Technician after working in the refrigeration and air-conditioning industry. Christopher has a diverse mechanical background working as a Marine Engineer in the Royal Navy and he brings important skills that will complement the rest of the Power Roll team.



Executive Assistant

Laura is an experienced Executive Assistant having worked for various companies over her career including Siemens, eaga and more recently Carillion. Laura joined Power Roll in January 2017 and provides senior administrative support to the Management & Technical Team as well as being responsible for the day to day office management at Power Roll.

The Power Roll team


Copyright © 2020 Power Roll Limited

Power Roll Limited

Washington Business Centre

2, Turbine Way,

Sunderland, SR5 3NZ,

United Kingdom

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