HYDROGEN ONSITE, SL

Their core work

Hydrogen Onsite is a Spanish SME specializing in membrane technologies and electrochemical systems for hydrogen and ammonia production. They develop and integrate advanced membranes, electrodes, and catalytic reactors used in energy storage and green chemical synthesis. Their work spans from solid oxide electrolysis cells (SOEC) for ammonia electrosynthesis to catalytic membrane reactors for process intensification — bridging the gap between laboratory membrane science and industrial-scale manufacturing.

What they specialise in

How they've shifted over time

Hydrogen Onsite's H2020 participation is concentrated in a narrow 2019–2020 window, so evolution is subtle but visible. Their earliest project (MACBETH, 2019) focused on catalytic membrane reactors and process intensification — a foundational membrane chemistry role. By 2020, they shifted toward applied energy systems: ammonia electrosynthesis via SOEC, manufacturing pilot lines, and advanced membrane scale-up, indicating a move from component-level research toward integrated energy storage solutions.

They are moving from membrane component research toward complete ammonia-hydrogen energy storage systems, positioning themselves at the intersection of green hydrogen and industrial decarbonization.

How they like to work

Hydrogen Onsite participates exclusively as a partner, never as coordinator, which is typical for a specialized SME contributing focused technical expertise to larger consortia. With 58 unique partners across 14 countries from just 3 projects, they operate in large, multi-national consortia (averaging ~19 partners per project). This suggests they are sought after as a specialist contributor rather than a project driver — a reliable technical partner for ambitious, large-scale research and innovation actions.

Despite only 3 projects, Hydrogen Onsite has built a broad network of 58 partners across 14 countries, reflecting participation in large European consortia. Their network likely spans major hydrogen and membrane research hubs across Western and Southern Europe.

What sets them apart

Hydrogen Onsite sits at a rare intersection: they combine deep membrane expertise with practical hydrogen/ammonia energy storage applications, and they do so as a nimble SME rather than a large research institute. For consortium builders, they offer hands-on membrane and electrode integration know-how without the overhead of a large organization. Their Basque Country location (Loiu, near Bilbao) places them in one of Spain's strongest industrial and energy innovation corridors.

Highlights from their portfolio

• ARENHA
  Their largest project (EUR 541,500) tackling ammonia as an energy carrier via SOEC electrosynthesis — a high-impact topic for green hydrogen logistics.
• INNOMEM
  An open innovation test bed for nano-enabled membranes, giving them direct access to pilot-scale manufacturing infrastructure and characterization tools.