About us

Find out more about Powervault's mission and the people behind the products.

The Team


We are a growing and accomplished executive team supported by non-executive directors with a wealth of relevant experience

Joe Warren portrait

Managing Director

Joe Warren

Joe has spent 10 years working in the smart grid sector and is passionate about working in start-ups to bring new, smart grid technologies to market. He spent the first half of his career working in the fast growing Internet sector as Director of Hosting Operations at Pipex Plc. There he led a seventy-strong team at five UK locations, and was responsible for IT hardware, software and power infrastructure supporting 4,000 businesses and 250,000 consumers. In 2007, Joe moved to Open Energi/RLtec when it was a start-up. He helped bring their smart grid dynamic demand product from concept to commercial reality, creating a new market in which Open Energi arrived first. Joe managed Open Energi’s relationship with National Grid over a period of seven years and agreed the first ever Dynamic Demand contract for demand side Firm Frequency Response, securing contracts with National Grid and Sainsbury’s. Joe joined Powervault in 2014 as Managing Director. He obtained a BA (Hons) from the University of Oxford in Experimental Psychology and an MBA from INSEAD.

Operations Director

Mark Shaw

Mark has over 25 years’ in the global corporate environment in Finland, Germany, Ireland and China for the manufacturing of electronic and electro-mechanical products. He is an operations management specialist, passionate about Lean Manufacturing, Inventory and Supply Chain Optimisation. Mark has a well-rounded business experience which enables him to help firms improve their operations, set-up new manufacturing operations, and help turn troubled companies into the black. His specialist skills are in blending processes and systems to enhance organisational capabilities, improve collaboration and business performance. Mark has an MSc in Economics and Business Administration, a BSc in Electrical and Electronic Engineering and certification in Lean, Six Sigma (Green Belt), PRINCE2 and Theory of Constraint. He is bilingual (English and Finnish) and has basic proficiency in Russian.

Technical Director

Sean Scharffenorth

Sean has more than 20 years’ experience in engineering development. He has worked in several industries ranging from start-ups to NYSE listed companies such as Curtiss-Wright Corporation. Sean had a hands-on early career in hardware and software development but has spent the last 12 years in various engineering leadership roles including holding multiple directorships during this time. Sean has managed engineering teams spanning the globe – including development teams in China, India and Canada – to deliver complex engineering solutions. His career spans multiple sectors including telecommunications, aerospace, surveillance and access-control. Notable customers for the engineering solutions he delivered include NASA and Boeing.

Finance Director

Duncan Perritt

Over the last 20 years Duncan has set-up and run the finances for successful start-ups and early stage businesses. His focus is on new technologies and companies which provide disruptive, innovative solutions. Duncan has worked for large corporates in the Energy, chemicals and telecoms sectors and for a diverse range of SMEs covering areas such as smartcards, biometrics, media and financial services. Duncan is a qualified accountant (FCCA) and holds a joint degree in Accountancy and Computer Science.




Mark Ansell

Mark Ansell is a chartered engineer who has spent over 30 years working in manufacturing industry. After starting his career as a design engineer at JCB, he became Chief Executive of Flow Group Limited, a UK-based manufacturer of valves for the energy industries, which he helped to develop into a profitable £30M+ turnover business with 250 employees and to deliver a successful exit for its investors in 2011. He was a non-executive director of JPMorgan US Smaller Companies Investment Trust plc from 2005 to 2017 and now works as a chairman or non-executive director helping early stage businesses develop and grow.  Mark has a degree in Engineering from the University of Cambridge and an MBA from Cranfield University.

Deputy Chairman

John Wall

After completing an MBA, and subsequently the Fellowship in Manufacturing at Cranfield University, John has spent his career at MD level turning around, running, and making significant improvements to the performance of UK manufacturing businesses, large and small. He and Mark Ansell have co owned and worked together in several companies since 2002 with significant success, notably at Flow Group Limited and Silclear Limited which resulted in exits to global PLC’s. John and Mark led the 2020 Future Fund co-investment in Powervault through their investment vehicle, Tudorhead Holdings Limited.

Board Member

Simon Acland

Simon is an active business angel investor in green technology. He sits on the board of two Triple Point VCTs, which invest primarily in renewable energy, and is a member of the investment committee of the British Business Bank’s Angel CoFund. He is an advisor to the Green Angel Syndicate and is also a Trustee of Plantlife, the UK’s main wild plant conservation charity. Simon has spent 30 years investing in young technology businesses. Much of his venture capital career was spent as Managing Director of Quester, which became one of the UK’s most active early stage technology investors. Seven of the companies that he has backed achieved public listings on the London Stock Exchange, AIM, Nasdaq or Easdaq, including two companies which reached the FTSE 250; many others have been successfully sold. He joined the Powervault board in 2012 when he was the lead angel investor in the first funding round. He was Chairman of Powervault from 2014 to 2018 and currently leads the fundraising activities for the Company.


Andrew Wordsworth

As former Managing Director of Carbon Trust Enterprises, Andrew has previously led the creation and launch of twelve low carbon companies, which have secured over £250m in equity commitments. A former process control engineer with Esso Petroleum, Andrew has strategic consulting experience with Bain and Arthur D Little.  Andrew is Co-Founder of Sustainable Ventures Development Partners (SVDP); in 2015 he led the exit of SVDP’s first start-up, E-Car Club, to Europcar in what is now recognised as the UK’s first successful crowdfunding exit. Andrew holds a first-class MEng in Chemical Engineering from the University of Cambridge, where he was awarded the University Fox Prize. He was named ‘Entrepreneur of the Year’ by businessGreen in 2015.

Board Member

Vitaly Lazorin

Vitaly is the CEO and Managing Partner of Future Matters, a privately-held, London-based investment firm. Future Matters focusses its investments in the UK and Europe in a diversified portfolio of early-stage companies operating in clean tech and digital technology industries with potential for a multiple increase in value and market leadership. Vitaly began his professional career in 1992 as an Audit Assistant at Price Waterhouse (now PricewaterhouseCoopers). He worked as the Financial Controller of the Lower Volga EBRD-sponsored regional venture fund, and then as Investment Associate at The Carlyle Group. Vitaly holds a degree in International Economics Relations from the Moscow State Institute of International Relations (MGIMO). He is a Chartered Certified Accountant.

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