Equinix, a global datacenter provider, is conducting trials of fuel cell technology powered by hydrogen as an alternative backup power source in Dublin, Ireland. The company has set up a demonstration unit at one of its facilities near the Irish capital, showcasing the potential of this greener energy source. The unit, developed by GeoPura and supplied by ESB, can deliver up to 250 kW of clean power, promoting sustainability and reducing carbon emissions. Other players in the industry, such as SK Ecoplant and NorthC, have also explored utilizing fuel cells in datacenters, indicating a growing trend towards adopting renewable energy solutions. Despite the promising benefits of fuel cells, the key challenge remains in sourcing 'green' hydrogen to ensure environmentally friendly energy production. Efforts are being made to transition towards renewable sources for hydrogen generation, aligning with the goal of achieving carbon-free operations in the future. The article highlights the ongoing technological advancements and industry-wide interest in leveraging innovative solutions like hydrogen fuel cells to enhance the efficiency and sustainability of datacenter operations.