BP and Iberdrola have embarked on an ambitious project to build Spain's largest hydrogen plant in Castellón. This joint venture, Castellón Green Hydrogen, aims to transform the BP refinery into a green hydrogen and biofuels hub. The 25 MW facility, backed by an initial investment of over 70 million euros, is set to be operational by the second half of 2026. The project is expected to create around 500 jobs during construction, involving approximately 25 Spanish companies. The plant's operation is a part of BP's larger plan to invest more than 2 billion euros to make Castellón a significant green hydrogen hub in Europe. The plant's technology includes electrolysers powered by renewable electricity, aimed at producing 2,800 tonnes of green hydrogen per year. This will help in reducing CO2 emissions by 23,000 tonnes annually, equivalent to the emissions of 5,000 cars. Additionally, the green hydrogen produced could be utilized in industries like ceramics and heavy transport, enhancing decarbonisation efforts. The project, supported by funds from the Spanish Recovery Plan and the European Union, signifies a crucial step towards industrial decarbonisation and the development of the hydrogen value chain in Spain.