The As Pontes green hydrogen project is the most mature of Endesa’s 23 planned green hydrogen projects and aims to demonstrate the commercial feasability of a large-scale electrolysis plant. will feature a 100-MW electrolyser and six wind farms totalling 611 MW, Endesa said. The plant is located at the As Pontes power plant site and will be powered by wind projects in the area that already have the right of connection.