Equinix has trialled a Hydrogen Power Unit for use in data centre backup systems in Ireland. The trial is part of an effort to explore alternative energy sources for large energy users (LEUs), including potential replacements for diesel and gas generators.
The project is being carried out in collaboration with ESB and GeoPura, and takes place alongside ongoing grid capacity constraints affecting data centre development in the Dublin region. It is the first deployment of this type within Equinix’s global portfolio of more than 280 data centres.
The 12-week pilot involves two hydrogen generators installed at Equinix’s DB3 facility in Dublin. The units, developed by GeoPura, are used to support the site’s cooling systems and are intended to contribute to improved energy efficiency, including a reported reduction in power usage effectiveness (PUE) to below 1.3.
The generators use hydrogen produced from renewable sources and are designed to produce electricity with no direct onsite emissions. They use proton exchange membrane (PEM) fuel cell technology and are integrated with backup systems, including uninterruptible power supply (UPS) systems, to respond to changes in grid demand.
Equinix and ESB are collecting data during the trial on carbon emissions reduction potential, operational safety, and commercial viability. The results may be used to inform planning and policy considerations by relevant public and academic bodies.
Beyond data centre applications, the system is also being assessed for potential use in other sectors such as construction, where diesel generators are commonly used. The hydrogen units can be scaled up to around 50 MW and produce water and heat as by-products, with possible applications including district heating.
Overall, the trial is positioned within broader efforts to reduce operational emissions and explore alternative backup power solutions for energy-intensive infrastructure.
