The Museum of Electrical Technology is a permanent tribute to Alessandro Volta, inventor of the battery and appointed professor of experimental physics in Pavia. It was inaugurated in 2007 with the aim of presenting the historical heritage of electrical technology and its impact on all aspects of daily life . In a space of 5,000 square meters, more than 7,000 objects are exhibited. They are unique and original pieces from some of the most important Italian industrial and scientific-educational collections (Enel, Sirti and the University of Pavia). For example, the Museum preserves one of the electric generators coming from the hydroelectric power plant in Paderno d’Adda, a Milan city tram, a particle accelerator, a wind generator and Eta Beta II, a nuclear fusion generator resulting from an important Italian scientific project. The exhibition also puts on display an original Enigma machine, designed to protect patents and projects from industrial espionage, which became an encrypted communication system used by the general staffs of the armies of several countries in the 20th century. Since 2021, the Museum’s deposit has also been open to the public, who will thus be able to appreciate a collection of hundreds of objects in common use that have marked the evolution of the electrical technique applied to photography, music, and information technology. Some in-depth sections are dedicated to water turbines, electric vehicles, telephone exchanges and military equipment.