Many rivers are flowing here and the Sun is omnipresent. These are the reasons why hydraulic and solar power plants have been widely developed in the "Alpes de Haute-Provence".
The dam of Serre Ponçon (89 km away from le Vieil Aiglun): One of Europe's largest hydraulic plant. The Museoscope can be visited.
The Solar Power plant of les Mées (22 km away from le Vieil Aiglun): One of France's largest photovoltaic solar plant.