The Ministry of Defence has conducted successful trials using hydrogen power units (HPUs) to convert hydrogen into electricity for charging electric vehicles, aligning with their commitment to sustainability and operational efficiency. The trials, initially planned for three sites, were extended to cover five locations including RAF Leeming, Devonport Naval Base, and Merville Barracks. The Assistant Chief of Defence Staff highlighted the potential of hydrogen in enabling a transition to zero-emissions energy and improving operational efficiency. HPUs provided by GeoPura offered a reliable source of power for electric vehicles, ensuring rapid charging with zero emissions and overcoming grid capacity constraints. The Defence Support, in collaboration with industry partners, is planning further initiatives to expand the use of hydrogen across Defence sites. The Chief Hydrogen Business Officer at GeoPura emphasized the benefits of using green hydrogen for rapid charging and contributing to a cleaner, more sustainable future. The Defence is exploring the potential of hydrogen in managing electric vehicles and considering its broader applications with partners like the Defence Infrastructure Organisation. Overall, the article emphasizes the positive impact of hydrogen as a sustainable energy solution in Defence operations.