The creation of the artificial lake of Serre-Ponçon in 1959 in the Hautes-Alpes department gave birth to two museums. The Muséoscope du Lac participates in the site's memory by retracing the construction stages of the largest earthen dam in Europe and the history of the villages submerged by its impoundment. The Maison des Énergies explains the multi-use of water, the functioning of power stations, and the place of renewable energies in the production of electricity.