Rising electrification, grid constraints and renewable intermittency are exposing the limits of legacy infrastructure. At the same time, geopolitical pressures are driving demand for secure, local energy production and more efficient resource use where every single drop of fuel and unit of electricity matters.
Against this backdrop, Elcogen has launched a new solid oxide fuel cell stack platform, designed to improve performance, contributing to significantly better economics for sustainable energy systems. It is also optimised for scalable mass manufacturing, enabling rapid industrial deployment at significantly higher volumes and lower unit cost than the previous generation.
“The time is right for this technology” said Enn Õunpuu, CEO & Founder of Elcogen. “Fuel combustion is inefficient and creates harmful pollutants. It’s time to consign the internal combustion engine to the history books. Electrochemical conversion technology can support industries that need to decarbonise, including the fast-growing data centre sector, which demands reliable, on-site, low- to no-carbon power. As energy systems become increasingly decentralised and diverse, solutions must be scalable, flexible, and able to utilise locally available energy sources.”
Key advancements in the E3000 G2 platform include:
Extended lifetime and durability – The new E3000 G2 delivers a longer operational lifetime, with a slower degradation rate, and better resistance to wear over time improving long-term system reliability.
Broader and more stable performance – The stack operates efficiently across a wider load range, with strong partial-load stability and stable performance under thermal cycling, ensuring consistency under dynamic operating conditions.
Lower cost at scale – A simplified, manufacturing-ready design reduces cost per kW and establishes a clear pathway to further cost reductions through mass production.
The E3000 G2 builds on the company’s existing E3000 platform and has been fully redesigned with mass manufacture in mind. This manufacturing-first approach enables a transition from bespoke, project-based deployments to repeatable, industrial-scale rollout.
In fuel cell (SOFC) mode, the E3000 G2 is fuel-flexible, capable of utilising a range of locally available fuels, including hydrogen, biofuels and natural gas. This enables on-site power generation tailored to regional energy availability, delivering up to 75 percent electrical efficiency and up to 90 percent when waste heat is utilised.
The system also operates in electrolysis mode (SOEC) for the production of green hydrogen, using locally sourced renewable energy with an efficiency of 33 kWh/kg. It operates at significantly lower temperatures than most conventional solid oxide technologies (~650–750°C compared with 700–850°C), enabling the use of more cost-effective materials. This temperature range also provides the optimal conditions for both hydrocarbon fuel utilisation and electrolyser performance, further contributing to cost reductions on a system level.
The E3000 G2 is designed as an application-agnostic platform, enabling a wide range of system developers and integrators to build solutions across industries. Data centres are one of the fastest-growing and most power-constrained sectors globally and stand to benefit significantly, as operators can rapidly deploy SOFC-based onsite power to bypass long grid connection queues and delays associated with conventional installations. This enables faster commissioning, improved energy resilience, and a clear route to lower-emissions operations.
Beyond digital infrastructure, the platform supports critical industrial decarbonisation solutions. From green steel production to ammonia synthesis and other hydrogen-intensive chemical refining processes, the E3000 G2 enables the efficient use of green hydrogen as a feedstock and energy source. This positions it as a key enabler for sectors where electrification alone is insufficient and where low-carbon molecules are essential to achieving net-zero targets.
Additional applications include off-grid EV charging and residential heat and power, with the platform supporting diverse use cases without requiring fundamental redesign.
“This openness is critical to scaling the energy transition” added Mr Õunpuu. “At Elcogen, we deliberately focus on supplying core components that integrate into third-party systems, rather than pursuing vertical integration or developing complete systems ourselves. This allows a much broader ecosystem of designers and integrators to innovate on top of our technology, lowering barriers and accelerating adoption across multiple sectors simultaneously. With the E3000 G2, we have combined performance, durability, flexibility and manufacturability into a single platform designed for industrial deployment, giving partners the tools to adapt to their specific energy environments while scaling rapidly.”
Elcogen has significantly expanded its manufacturing capabilities. Its new 14,000 m² facility, ELCO I in Tallinn, Estonia, increases production capacity from 10 MW to 360 MW, with a clear pathway toward multi-gigawatt scale.
Designed around advanced, high-throughput standardised production processes, the facility enables consistent quality at volume while shortening lead times and improving cost structures for customers. This manufacturing backbone is central to Elcogen’s strategy in enabling rapid scaling from pilot projects to widespread industrial deployment, accelerating the global rollout of distributed energy systems with hydrogen solutions scaling alongside.
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