Case C 461/13 Bund für Umwelt und Naturschutz Deutschland (navigable waterway); Case C-346/14, Commission v Republic of Austria, 4/5/2016, (hydropower plant on the Schwarze Sulm river) ECLI:EU:C:2016:322, Case C-43/10, Nomarchiaki & al. 11/9/2012, (project for the partial diversion of the upper waters of the river Acheloos) ECLI:EU:C:2012:560