E4tech provides strategic thinking in sustainable energy, helping organisations to achieve solutions that are technologically, economically and environmentally sound.

E4tech is an international strategic consultancy focused on sustainable energy. Since 1997 we have worked with companies, governments, and investors to help them understand the global opportunities and challenges of clean energy. We have built a strong track record of providing objective and strategic business and policy advice backed up by sound technical knowledge. Our clients call on us for support in looking into the future and taking decisions under uncertain conditions. We support them through strategy development and business planning, market and competitor analysis, due diligence support, and policy analysis and development. We underpin this with detailed modelling and assessment work: techno-economic analyses of energy systems, greenhouse gas and sustainability assessments, and supply chain and primary resource evaluation.


Our team

E4tech is proud of its exceptional team. Highly skilled consultants with deep expertise in sustainable energy technology, business and policy, our team members have backgrounds in industry, research and consultancy. Additional insight comes from their different nationalities, cultures and languages.

Dr Ausilio Bauen

Director - London
Ausilio’s focus is on bioenergy and biochemicals, with a wider interest in novel energy technologies and fuels.

Adam Chase

Director - London
Adam Chase leads our work on energy policy, strategy and finance.

Dr David Hart

Director – Lausanne
David Hart is the sector leader for Fuel cells and Hydrogen.

Jo Howes

Principal Consultant - London
Jo Howes leads our work in energy policy and innovation, with 15 years’ experience in bioenergy, hydrogen and energy systems.

Dr Luca Bertuccioli

Principal Technologist - Lausanne
Luca works on system-level topics as well as aviation and road transport biofuels, low carbon energy technologies, and hydrogen and…

Sébastien Haye

Managing Consultant - Lausanne
Sébastien leads our work on sustainability and resources in relation to energy: GHG emissions, land-use change, standards and chain-of-custody.

Franz Lehner

Managing Consultant - Lausanne
Franz has a great network in the fuel cell and hydrogen community and leads our annual Fuel Cell Industry Review.

Dr Tom Houghton

Managing Consultant - London
Tom brings deep expertise in economic modelling of energy systems, especially in the power and hydrogen and fuel cells sectors.

Dr James Nicolle

Managing Consultant - London
James brings industrial experience of sustainable chemicals production and has a focus in both this area and low carbon fuels.

Diana Raine

Managing Consultant - London
Diana brings significant experience of the entire hydrogen supply chain gained through many years in the industrial gas sector.

Khangzhen Leow

Senior Consultant - London
Khangzhen’s focus is on cleantech, innovation, and sustainability. He works across the low carbon and water sectors.

Lizzie German

Senior Consultant - London
Lizzie has experience in sustainability, bioenergy and low-carbon fuels, including techno-economic and market assessments.

Chester Lewis

Senior Consultant - London
Chester has a technical background and experience in energy systems, fuel cells and hydrogen and low-carbon transport projects.

Guy Bates

Senior Consultant - London
Guy’s focus is on low carbon vehicles following technical experience gained of electrification in the automotive industry.

Richard Platt

Senior Consultant - London
Richard is experienced in providing strategy support, market analysis and techno-economic assessments to international energy and chemicals companies and investors.

Dr Stuart Jones

Energy Technologies Knowledge Manager
Stuart supports E4tech in knowledge management and delivery, mainly in the hydrogen and fuel cell sector.

Eloise Cotton

Consultant - London
Eloise has experience in a wide range of sustainability issues and in depth knowledge of geospatial problem solving.

Chris Lowans

Consultant - London
Chris’ background in engineering and geophysics, gives him a solid technical foundation across the energy spectrum.

Yamini Panchaksharam

Consultant - London
Yamini has expertise in water, resources management, and natural sciences.

Dr Pragna Kiri

Consultant - London
Pragna’s focus is renewable energy solutions and sustainable chemistry, with a deep interest in innovative fuels, technology and environmental policy.

Christopher Sim

Consultant - London
Chris' focus is on biochemicals and bioenergy, having previously worked as a Chemical Engineer in the Petrochemicals sector

Niccolo Bitossi

Consultant - London
Niccolò has a solid background in energy engineering and in-depth knowledge of the entire spectrum of energy sources.

Anisha Harris

Consultant - London
Anisha’s engineering background provides her with strong technical and analytical skills, especially with concern to the process and chemical industry.

Maxime Rousseau

Consultant - London
Maxime’s background in engineering and automotive gives him solid technical, analytical and practical skills applicable across the entire energy spectrum

Rowena Figueroa

Office Manager - London
Rowena manages the day to day running of the London office and also assists with improving operational processes.

Crystel Martinez

Team Administrator - Lausanne
Crystel supports the day to day running of the Swiss office.

Our Network

Our multi-national and multi-lingual team of consultants is further supported by our global network of experts, industry & government contacts, data sources, and partner companies. This allows us to provide you with in-depth expertise and specialised skills wherever needed and expands our footprint well beyond Switzerland and the UK.

Organisations we work with

E4tech Director Prof. David Hart sits on the Advisory Board of the Hydrogen and Fuel Cells Supergen Hub, an initiative that aims to link academics and industry experts to study the impact of hydrogen and fuel cells in low carbon energy systems.

E4tech Director Prof. David Hart sits on the Advisory Board of Conduit Ventures, an independent, long-term investor, focusing on innovative technology investments in OECD and selected Asian countries.

E4tech is a member of CleantechAlps, a platform promoting the development of the cleantech sector in Western Switzerland.

E4tech is a member of Hydrogen London, the public-private partnership working towards a hydrogen economy for London and the UK.

E4tech is a member of the Low Carbon Vehicle Partnership (LowCVP), a public-private organisation with a vision to support the UK shift to more sustainable transport.

E4tech is a member of the Scottish Hydrogen and Fuel Cell Association which promotes and develops Scottish expertise in fuel cells and hydrogen technologies.

Working at E4tech

We are always interested to hear from talented and self-motivated people who have what it takes to be part of our team. We offer a collegiate working culture, a competitive salary, and a diverse and interesting environment at the cutting edge of sustainable energy.

If you have a background and demonstrated interest in sustainable energy, a strong intellect, enjoy solving problems and can present arguments and thoughts clearly and concisely, we look forward to hearing from you.


Current vacancies

To apply for our London or Lausanne offices you must have (or be able to obtain) the right to reside and work in the UK or Switzerland respectively.


Lausanne Office

We currently do not have any vacancies.

London Office

We are currently recruiting for the following roles: Click the links below on how to apply.

Sustainable Energy and Resources Consultant

Operations Manager 

Open applications

The competition for jobs at E4tech is high, so if you decide to send us an open application, you will need to make it unique and show why you are right for our team. Your application should contain a tailored CV and cover letter. We will only consider applications from candidates who demonstrate they have the right to work in the UK and/or Switzerland (e.g. UK/Swiss citizens; candidates from the European Economic Area; holders of a valid UK/Swiss work visa) and failure to do so may result in your application being turned down. Send your open application to openjobs@e4tech.com. We will only contact those candidates whose application we wish to pursue further.

Please note that E4tech will not consider candidates from recruitment agencies.


Candidate privacy policy

For more information about our data protection policy and how we process your data as a candidate please click here.