We enable clear sky

Power generation without internal combustion

Solid oxide cell & stack technology

Our products have the highest rate of energy conversion efficiency

Elcogen stacks have a world best rate of primary energy conversion efficiency to electricity at over 70%. Our technology works at a lower operating temperature, which is a key contributor to reducing stack and system costs, as well as lower degradation rates at the cell and stack level.

Planar, ceramic, anode-supported cells operate at 650°C. SEE MORE
Stacks use low cost materials and are designed for mass manufacturing. See more

Unique patented technology

Elcogen’s stacks operate at a lower temperature of 650°C, enabling longer lifetimes and the use of low-cost materials at the cell, stack and system level. Our solutions enable fuel cell system manufacturers to bring their products to the global commercial market for a variety of applications by solving cost, efficiency and lifetime issues. Our targets are:

Platform for multiple industries

Our customers range from system integrators of residential, commercial and industrial power generation units to the transportation industry and those with interests in power-to-fuel capabilities.


High efficiency fuel conversion to electricity. Lower capex and lifetime cost. Fuel flexible.

Long range transportation

Marine applications utilising LNG.
APU and range extension in commercial vehicles.

Commercial and Industrial

Modularity and ability to scale units to MW power levels. Fuel flexibility.

Energy storage and power to fuel

High efficiency electrolyser presents a step-change opportunity in wind and solar energy storage, as well as power to fuel yields.

Over 100 customers globally

Our customers include stack manufacturers, system integrators, OEMs, research institutes, universities and utilities


stack manufacturers, universities, research institutes.


system integrators, stack manufacturers, utilities, research institutes, universities.


OEMs, system integrators, stack manufacturers, utilities, research institutes, universities.

Immense market opportunity

Overall value of the fuel cell market is expected to reach €25,5bn in 2024/25. Solid oxide cell market value is expected to reach $3 billion by 2022

Micro Combined Heat & Power Market by 2024.
Commercial & Industrial
C&I electricity market for 11 major countries.
Energy storage
Global hydrogen market.

Latest News

President Kersti Kaljulaid Visits Elcogen’s Tallinn Headquarters

Elcogen, a leading European solid oxide fuel cell manufacturer headquartered in Estonia, has welcomed the President of Estonia, Kersti Kaljulaid, to its headquarters in Tallinn. Enn Õunpuu, founder and CEO of Elcogen, and Henri Kaar, CFO, showed the President around […]

13 May, 2021
Elcogen signs agreement with Ülemiste City to develop 50 MW solid oxide fuel cell and stack manufacturing facility

Elcogen, a leading European solid oxide fuel cell manufacturer, headquartered in Estonia, is pleased to announce that it has signed an agreement with Mainor Ülemiste AS to develop a 50 MW solid oxide fuel cell and stack (200 MW solid […]

15 March, 2021
New Managing Director appointed for Elcogen Finland

Elcogen is pleased to welcome Hanna Granö-Fabritius as a new Managing Director of Elcogen’s Finnish subsidiary – Elcogen Oy. Hanna has more than 20 years’ experience in international business and general management, predominately in the Material Science and Life Science […]

25 February, 2021