5–6 June 2026, Prague

This is not a gardening club.

Five years in, GreenHack 2026 is still where humanity teams up with AI to tackle sustainability’s end-bosses: climate chaos, waste, reckless production, disappearing resources. We experiment, prototype, and stress-test ideas that actually help. AI isn’t the hero — it’s the sidekick we’ve all been waiting for.

We invite students, designers, engineers, and tech-savvy creators to join the challenge. Register as an individual or form a team of 2–4 members — bring your skills, curiosity, and a willingness to build something that matters.

When: 5–6 June 2026

Where: 42 Prague, Kolbenova 1021/9, Prague 9

Timeline 2026

1st February

Registration Opens

5th May

Invitations Start Going Out

20th May

Hackathon Weekend

5-6 June

Registration Deadline

Prizes

1st Place: 2000 €

2nd Place: 1000 €

3rd Place: 500 €

More partner prizes coming…

Challenges (in preparation)

Circular Intelligence

Use AI to keep products and materials in circulation longer — from predicting waste before it happens to guiding repairs, reuse, and smarter recycling. Build tools that help consumers and companies make resource-smart decisions without sacrificing convenience.

2. Supply Chain Decoder

Scope-3 emissions shouldn’t be a mystery. Create AI tools that estimate missing data, flag dirty suppliers, compare greener alternatives, or simulate climate impact. Turn messy supply chains into transparent, actionable insights.

3. City Resource Brain

Cities waste energy, water, and time — often because they can’t see what’s happening. Build AI for smart waste routing, leak detection, recycling insight, or district energy balancing. Help cities go from reactive to intelligent.