[9] Balélec ("bal"-"élec") was originally the yearly-held ball of the electrical and electronic engineering students at EPFL.
It was first organized by professors of the school of engineering, and was progressively adopted by students, who transformed it into a festival.
The Balelec Festival is planned and managed by a student club recognized by EPFL and listed as a non-profit organization.
The orgalization is composed of a main committee of 50 volunteers, mostly EPFL and UNIL students, who are divided into four teams: Animation, logistics, promotion and internal resources.
The festival has also two electronic music stages called the Coupole and the SoundGate, the last one taking place in the Faculty of Architecture's hall.