Berlin Battery Hackathon

The Battery Hackathon comes back to Berlin! Join us and 80+ hackers from across Europe and beyond for the Berlin Battery Hackathon on April 24–26, 2026, in Berlin. We want to bring together builders from battery technology, energy markets, and energy operations to work on real challenges around storage, grid applications, and intelligent energy management. Batteries have become strategic infrastructure. They shape grid resilience, renewable integration, and energy security — and this hackathon is meant to turn those challenges into concrete solutions. You’ll work on challenges from industry partners, get direct feedback from experts, and spend 36 hours building alongside developers, engineers, founders, and energy professionals. Our goal with the hackathon is to put you in a position to continue towards a real pilot or project. Partners CustomCells — One of Europe's leading custom battery cell manufacturers, developing application-specific lithium-ion cells for mobility, aviation, and stationary storage. alteva — Deep-tech startup building next-generation battery analytics and intelligent energy management systems. EEX (European Energy Exchange) — Europe's leading energy exchange, operating spot and derivatives markets for power, gas, and environmental products across 20+ countries. Enefit — Major Estonian utility and one of Europe's largest oil shale energy producers, now driving large-scale renewable and flexibility service deployment across Northern Europe. ​​Visitors ​​To give the participants time and space to focus on their projects during the hackathon, we'll have no visitors. If you're curious about the outcomes and what the teams have built, please sign up as a visitor for the demo day on Sunday. ​Agenda ​Friday, April 24, 2026 ​15:00 — Doors Open ​16:00 — Welcome by Organizers Key Note Talk by Helery Pops from ENEFIT Talk by Simon Steffgen from Bundesverband Energiespeicher Systeme (BVES) ​Presentation of challenges ​Networking and team formation ​17:30 – Start of Hacking 18:00 — Energy Trading Workshop by Luca Tuchtefeld from European Energy Exchange 19:00 — Dinner 24:00 — Doors close for the night ​Saturday, April 25, 20​​​26 8:00 — Doors open for the day Hacking continues all day 18:00 — Progress Check with mentors 19:00 — Dinner 24:00 — Doors close for the night ​Sunday, April 26, 2026 08:00 — Doors open for the day ​12:00 — End of Hacking and Submission, Lunch Break ​13:00 — Demo Day & Judging ​14:30 — Awards Ceremony ​15:00 — Open-ended Networking & After-Party About ​​European Energy Collective unites the energy community in Europe and beyond. Through meetups, hackathons, and webinars, we bring together startups, corporates, and energy professionals to share ideas, build projects, and accelerate the transition.