Elcogen Group Limited develops and supplies Solid Oxide Fuel Cell (SOFC) and electrolysis (SOEC) technologies, enabling the production of affordable green hydrogen and emission-free electricity across diverse sectors, from residential to large-scale industrial applications.
Founded in 2001, the company has its registered office in the UK, its main headquarters in Tallinn, Estonia, and R&D centres of excellence in both Estonia and Finland. Serving a growing global customer base, Elcogen’s fuel cells, stacks, and modules are integrated into third-party systems, delivering exceptional performance and reliability. In addition to the supply of components, Elcogen offers comprehensive services to support technology integration, ensuring seamless adoption and optimal functionality of its solutions in various applications. These systems are designed to unlock the full potential of renewable energy, offering superior efficiency compared to traditional technologies.
Elcogen AS established as foundation of company operations.
Elcogen OY established to develop solid oxide stack technology.
Elcogen started up its first solid oxide cell pilot production line
Moves to Tallinn facility with production and R&D capabilities.
Joins project developing fuel cells for LNG-powered ships.
Cells power world’s first solid oxide fuel cell drone.
Receives EUR 24.9 million to scale hydrogen and fuel cell production.
Partners with TNO to advance solid oxide electrolyser innovation.
Partners with AVL to develop megawatt-scale electrolyser stack modules.
Receives European award for innovation in emission-free power and hydrogen.
Baker Hughes and Mirae invest EUR 31 million to advance hydrogen technologies.
Secures EUR 5 million to expand operations and accelerate global growth.
Named among TIME’s top companies reducing global environmental impact.
Opens Tallinn facility to scale global clean energy manufacturing capacity.
At Elcogen, we’re proud to be at the forefront of solid oxide technology, delivering a component-based approach that supports the global transition to clean energy. Rather than developing complete energy systems, we focus on producing and supplying high-performance solid oxide cells, stacks, and modules to third-party system integrators. This strategy allows us to maintain a lower-risk, scalable business model with diversified revenue streams.
One of our core strengths is our expertise in reversible solid oxide technology (operating efficiently in both fuel cell and electrolysis modes). This versatility means our components serve a wide range of applications, including stationary power generation, combined heat and power (CHP), backup power for critical infrastructure, green hydrogen, and synthetic fuel production. Our solid oxide stacks can operate at a relatively low temperature of 600°C, delivering industry-leading efficiency (up to 90% when waste heat is utilised) while significantly reducing operational costs.
Our growth strategy is global and targeted. We’re seeing strong demand across Europe, Asia-Pacific, and China, where our technology is being integrated into solutions such as CHP systems based on biogas, maritime applications, EV charging and Power-2-X-2-Power projects. To meet this demand, we’ve constructed a new 14,000 m² automated manufacturing facility in Estonia, which is scaling our production capacity from 10 MW to 360 MW. This is a key step in improving efficiency, reducing costs, and supporting long-term demand.
Financially, we’ve adopted a CAPEX-light model with clear pathways to profitability. We’re expanding through a combination of organic growth and strategic initiatives, with plans to license our technology and manufacturing blueprint to trusted partners. This ensures consistent IP control while enabling local manufacturing – a particularly attractive proposition for markets focused on domestic production and resilient supply chains.
In essence, we combine cutting-edge technology, operational excellence, and a flexible, partner-driven model to position ourselves as a key enabler of clean, distributed energy globally.
