Andalusia officially began construction of the Palos de la Frontera (province of Huelva) on 17 September 2026. At the foundation-stone ceremony, the Valle Andaluz del Hidrógeno Verde was officially launched. At the ceremony, the Junta de Andalucía and project developer Moeve highlighted the project’s role in regional industrial policy and Europe’s energy transition. According to the regional government, Junta President Juanma Moreno was also joined by Prime Minister Pedro Sánchez at the public presentation.
The main element of the first construction phase is the facility known as Onuba in Palos de la Frontera. It is initially planned to have 300 megawatts of electrolysis capacity, with the technical option of later expansion. The overall project also includes a site in San Roque in Cádiz province. Those responsible for the project cite existing grid infrastructure, proximity to ports and Andalusia’s high share of renewable electricity as reasons for choosing the sites; these are intended to enable competitive green hydrogen production.
The project has been accompanied by planning and approval procedures since 2024 and 2025. These include environmental assessments and legally required consultation periods. The Junta de Andalucía presents the valley as a component of reindustrialisation; Madrid points to its contribution to European energy sovereignty. At the same time, key questions remain open: there is not yet a single publicly accessible study providing independent, consolidated estimates of total investment, the schedule, employment effects and the grid expansion required.
Environmental authorities and experts also point to risks to sensitive coastal and wetland ecosystems in Huelva province. These concerns will need to be addressed in the next project phase through specific mitigation and monitoring measures. Further approvals, expansion of the electricity and gas grids, and reliable evidence of climate and economic impacts will also be crucial to achieving the announced production targets.
The foundation-stone ceremony marked the official start of the first construction phase of the Valle Andaluz del Hidrógeno Verde. Progress will be judged by whether the stated capacity in Palos de la Frontera is delivered on time, connections to ports and grids are secured, and environmental requirements in Huelva and elsewhere are demonstrably met. In San Roque, too, the schedule depends on approval procedures and infrastructure issues.
Editor: Mira Cadena (Article created with AI assistance).