Moeve starts Onuba — 300 MW first phase of Andalusian Green Hydrogen Valley
- Onuba will deploy 300 MW of electrolysis capacity with an option to add 105 MW and produce about 45,000 tonnes of renewable hydrogen per year.
- The first phase represents a joint investment of more than €1 billion and is part of Moeve’s €2.4 billion Andalusian energy transition programme.
- Ownership: Moeve 51%; Hy24 and COFIDES hold a combined 29%; Enagás Renovable and Alter Enersun hold the remaining 20%.
- The EU designated the phase a Project of Common Interest and Spain allocated €304 million from the Recovery, Transformation and Resilience Plan; the full Valley targets 2 GW of electrolysis capacity.
Project overview
Onuba is the first phase of the Andalusian Green Hydrogen Valley, sited at an energy park in Palos de la Frontera (Huelva). It will start with 300 MW of electrolysis capacity, with an option to expand by 105 MW, and includes a dedicated photovoltaic plant for self‑consumption. The phase represents a joint investment of more than €1 billion.
Scale and impact
The facility is expected to produce roughly 45,000 tonnes of renewable hydrogen annually and avoid about 250,000 tonnes of CO2 emissions per year. During development, construction and commissioning the project is forecast to generate more than 8,000 direct, indirect and induced jobs and support the activity of over 400 local SMEs and self‑employed businesses.
Ownership and funding
Moeve holds a 51% majority stake; Hy24 and COFIDES are strategic partners with a combined 29% stake, and Enagás Renovable plus Alter Enersun hold the remaining 20%. The EU has designated the phase as a Project of Common Interest and Spain has allocated €304 million from the Recovery, Transformation and Resilience Plan (NextGenerationEU), supporting development of 405 MW within the Valley.
Technology, timeline and strategic role
The plant will be digitally native, incorporating a digital twin and a unified data/IoT platform. Moeve is also building a second‑generation biofuels plant in the same cluster to produce sustainable aviation fuel (SAF) and renewable HVO diesel next year. The overall Valley aims for 2 GW of electrolysis across sites in Huelva and Cádiz, leveraging regional land, port infrastructure and favorable climate. A Moeve–PwC report cited in the project says green molecules could halve Europe’s external energy dependence by 2040 and potentially replace up to 50% of fossil fuel demand by 2050, cutting CO2 emissions by about 22%.
Source: Moeve