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bp and Iberdrola's joint venture has reached final construction phase for a 25MW green hydrogen plant in Castellón, Spain. The plant, developed by Castellón Green Hydrogen S.L., is 90% complete with all equipment on site, including an electrolyser from Plug Power.

It is expected to produce 2,800 tonnes of green hydrogen annually, reducing CO2 emissions by around 23,000 tonnes per year. The investment exceeds €70 million, supported by funding from the Spanish Recovery Plan and involves 25 Spanish companies. Testing will begin in May 2026, with renewable energy sourced from Iberdrola's facilities.