Want to take part in a fun and meaningful local initiative? The MEL Student Challenge (Lille European Metropolis) invites you to discover the challenges of the ecological transition, with this year’s special focus on water management and use.
The concept is simple: for 11 weeks (from October 5 to December 18), take on environmental challenges through the Energic app. Each week, a new water-related theme will be explored: food, health, waste, biodiversity, and more. Every completed challenge earns you points.
The top players will be rewarded at a closing ceremony:
— 1st place: €400 Ethi’kdo gift voucher
— 2nd place: €150 Ethi’kdo gift voucher
— 3rd place: €100 Ethi’kdo gift voucher
— 4th to 10th place: €50 Ethi’kdo gift voucher each
— Special registration prize: the player who invites the most friends wins a 2-day pass to the Main Square Festival 2027
How to register
Registration is free and takes just 2 minutes:
- Download the Energic app on your smartphone by scanning the QR code (also available on a computer at web.energic.io)
- Enter the community code: ETU26
- Sign up using your student email address and a password (make sure to keep your password safe!)
Already 2,500 students have taken part in the Challenge — why not you? 🙌


