The site uses 4 separate cooling towers which use of water from the Moselle annually. Additionally, a water reserve on site, Lake Mirgenbach, was created. The creation of this lake has led to the flooding of the subterranean portions of Ouvrage Kobenbusch, part of the Maginot Line. In 1985 an artificial lake was also created in the Pierre-Percée valley in the Vosges.