Our mission is to reshape how the world is powered


Elcogen is the world’s most advanced manufacturer of ceramic anode-supported solid oxide cells and stacks

“After realising the potential for fuel cells to become a dominant energy technology of the future, I founded Elcogen with the aim of developing the world’s best Solid Oxide Cell technology from the ground up.”

Enn Õunpuu
Founder and CEO, Elcogen

Our proprietary cells and stacks deliver market-leading electrical efficiency and are positioned to achieve market-enabling lifetime and cost levels.

To date, we have commercialized two product generations and have sold our technology to 60+ industry-leading customers globally. Elcogen’s 18 years of SOC R&D are protected by several patent families, which cover the design and manufacturing of our cells and stacks.

The Team

Elcogen’s team has in-depth knowledge of the energy industry, international business, fuel cell systems, materials science, multi-physics, electrochemistry and product design.



Enn Õunpuu
Founder, Member of the Board and CEO of Elcogen AS

Enn has 30 years of experience founding and leading multiple companies in the energy services and equipment, construction, real estate and banking industries.
Enn was a founder of the Estonian Power and Heat Association, an NGO uniting Estonia’s most prominent power and heat companies.

Enn holds a degree in Physics and Technology from Tallinn University.



Henri Kaar
CFO of Elcogen AS

Henri’s career in finance spans over 20 years, having worked in leading financial institutions across the Baltic region. Henri is responsible for financial and legal management at Elcogen. Prior to his current role, he worked in investment banking, advising companies on M&A transactions, restructurings, privatizations and listings. He also worked as a fund manager of investment and pension funds and served as a Board Member for an asset management company.

Henri holds a degree equivalent to an MSc from Tallinn Technical University in Accounting and Finance. He also studied at the London School of Economics.



Dr. Juhan Subbi
Fuel Cell Technology Lead Scientist

Juhan is the mastermind behind Elcogen’s cell development.

He has over 30 years of experience in chemical physics, mass spectrometry, spectroscopy of molecules, electrochemical impedance spectroscopy and materials science. He has worked with several research institutions within the Estonian Academy of Sciences and at the National Institute of Chemical Physics and Biophysics (NICPB) as a senior research scientist.

Dr Subbi has served as a member of the Science Board at the NICPB. He has been working with Elcogen since 2001.




Dr. Matti Noponen
Director of Stack Technology

Matti is a world-leading SOFC expert. He has developed deep experience in designing and evaluating SOFC stacks and systems for a variety of applications. He has spent his career specializing in fuel cells (SOFC and PEM), thermodynamics, multi-physics, and electrochemistry.

Previously, Matti was a Manager of Product Platforms for Wärtsilä Finland Oy in the fuel cell department, where he was responsible for leading the SOFC system product development team.

He also worked as a Senior Research Scientist at the VTT Technical Research Centre of Finland and was responsible for SOFC cell and stack development. Matti has over 50 publications and patent applications in the fuel cell field.

Our business is founded on an industry network and deep partnerships with core customers.

Our cell and stack solutions are designed in close collaboration with leading system integrators and are based on co-operative research and development with commercial and scientific partners.

Our development network includes over 20 strategic customers, universities and research centers worldwide.

Elcogen has participated in multiple European and regional R&D projects, including the European Commission’s Horizon 2020 programme and FP7, where it has developed a track record of successful project implementation.

Elcogen also works closely with large industrial partners and leading European research institutes.