Construction has commenced on Spain's largest green hydrogen plant in Castellón, a 25MW project adjacent to bp's refinery. The joint venture between bp and Iberdrola España is set to create 500 jobs and involve 25 Spanish companies. The €70 million project, developed by Castellón Green Hydrogen S.L., is expected to be operational by the second half of 2026. It will use renewable electricity to produce 2,800 tonnes of green hydrogen annually, reducing 23,000 tonnes of CO2 emissions. The project, funded in part by the Spanish Recovery, Transformation, and Resilience Plan, aims to decarbonize industries in the Valencian Community. The plant's significance lies in its economic impact, with local equipment manufacturing, engagement of over 25 local companies, and compliance with EU green hydrogen standards. This initiative represents a step forward in Spain's industrial decarbonization efforts, with plans to expand the use of green hydrogen in other sectors like ceramics, chemicals, and heavy transport.