A Croatian refinery located in Rijeka is moving towards decarbonisation by incorporating green hydrogen in its operations. IVICOM, an engineering and construction firm, has chosen Ohmium, a US-based electrolyser manufacturer, to supply 10MW of PEM electrolysers for the construction of a green hydrogen plant at INA's Rijeka Refinery. This initiative aims to utilize new solar installations to power the electrolysers, replacing the grey hydrogen currently in use at the refinery. The project not only focuses on enhancing the refinery's operations but also aims to supply sustainable fuel to Croatia's market. Arne Ballantine, CEO of Ohmium, highlighted the importance of the electrolyser installation at the refinery, emphasizing its role in promoting the green transition in Europe. The project is supported by the Croatian Government's Recovery and Resilience Facility to help Croatia achieve its national hydrogen strategy target of installing 70MW of hydrogen production by 2030. The partnership between IVICOM and Ohmium symbolizes a significant step towards sustainable fuel production and signifies the growing importance of hydrogen in refinery processes within the European landscape.