About the project

Key figures


European partners


MW alkaline electrolyser


M€ EU contributions


Tons of green hydrogen production

carte Sines portugal

GreenH2Atlantic, creation of a 100 MW hydrogen production hub in Sines, Portugal

The renewable hydrogen production project in Sines will be developed by a consortium composed by 13 entities, including the following companies:

EDP, Galp, ENGIE, Bondalti, Martifer, Vestas Wind Systems A/S., McPhy and Efacec, and academic and research partners such as ISQ, INESC-TEC, CEA plus DLR, as a scientific contributor and a public-private cluster, Axelera.

Our partners






The 100 MW electrolyser will be composed of innovative, scalable and fast-cycling 16 MW modules to overcome bottlenecks such as efficiency, size, lifetime and flexibility.
Sines Portugal
Other innovative features include an interface system composed of an Advanced Management System to ensure a reliable supply of H2 to the off-takers and enable project’s coupling to a local hybrid renewable power plants (solar and wind).
GreenH2Atlantic will enable the transition of a former coal-fired power plant into an innovative renewable hydrogen production hub, in alignment with Europe’s decarbonization and energy transition strategies.

Our main objectives

With the creation of a ‘hydrogen valley’ centered in Sines, GreenH2Atlantic will significantly contribute to the sustainability goals of the region and Portugal, providing an important contribution to the European energy roadmap.

Promote the decarbonization of Sines fossil fuel industrial hub

Take advantage of existing infrastructures of a decommissioned Coal Fired Power Plant

Demonstrate the lowest possible green H2 production cost by operating the 100 MW ALK electrolyser smartly and efficiently integrated with solar and wind energy

Take advantage of local synergies with the strategic port of Sines, access to the existent electricity grid and other industrial infrastructures in the region

Refurbishment of the Sines Coal-Fired Power Plant into a Flexible Green H2 Power Plant