Energy firm Repsol has taken a €400m ($443m) final investment decision on a 150MW green hydrogen plant at its Tarragona facility in Spain.
Co-developed with transmission system operator (TSO) Enagas Renovable, the 150MW system will produce up to 22,000 tonnes of green hydrogen per year and will become Repsol’s third large-scale electrolyser in the country.
Selected under Spain’s Hydrogen Valleys initiative, it will be co-funded with a €104m ($115m) NextGeneration EU grant.
Repsol has not confirmed when the electrolyser could be online, but said hydrogen from the system will be used “primarily” in green methanol production and other low-carbon products made at its Tarragona refinery and its circular economy Ecoplanta project.
While details on hydrogen integration remain thin, Ecoplanta is scheduled for commercial launch in 2029 and aims to manufacture methanol products using non-organic waste.
Repsol’s Spain electrolyser pipeline also includes 100MW plants intended to supply refinery operations in Bilbao and Cartagena. Both are planned to come online in 2029.
While refinery operations are emerging as Europe’s dominant green hydrogen demand driver, uses in maritime fuels are also gaining traction.
Spain is among the most advanced green hydrogen markets in Europe, with other major projects like Moeve’s 300MW Onuba gradually progressing.
However, the Spanish Hydrogen Association recently claimed the country’s forecast 2030 electrolyser capacity almost halved between 2025 and 2026.
The country also awaits a snap general election later this month, which could change Spain’s green hydrogen direction.
