5–6 June 2026, Prague

AI and Sustainability:

Friend or Foe?

REGISTER

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.

AI can be at the core of what you build but sustainability leads the way. We use AI to reduce waste, save resources, and create real environmental impact, not to fuel overconsumption. At GreenHack, technology serves the planet, not the other way around.

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

19th March

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)

Grid Pulse

Energy systems are becoming more dynamic, decentralized, and weather‑driven than ever before. As renewables grow and uncertainty increases, operators need new ways to see, understand, and anticipate what’s happening across the grid. Build an AI‑powered, visually strong map‑based view of the power grid that turns complex data into clear insight — helping humans stay in control of a rapidly changing energy system.

2. Renovate Now

Build a digital tool that helps apartment building owners see why energy renovation pays off now—through clear costs, benefits, financing options, and next steps. The goal: turn hesitation into action and make renovation feel achievable, valuable, and future-proof.

3. BlackOut Prague

Design a practical solution that helps cities, institutions, and communities prepare for blackouts and cascading crises. Improve resilience, coordination, and communication when critical systems fail—and turn disruption into faster, smarter response.

Agenda

Friday, 5 JUNE - # Hack Day 1

08:45–09:30 – Registration

09:30–09:40 – Welcome & Keynotes

09:40–10:00 – Organization & Rules

10:00–11:30 – Challenge presentations

11:30–12:00 – Mentor introduction

Saturday, 6 JUNE - # Hack Day 2

09:00–10:00 – Workshop: How to pitch?

12:00 – Submissions deadline

13:00–17:00 – Pitch session

17:30 – 18:30 – Winners annoucement

Venue: 42 Prague

Address:

42 Prague, Kolbenova 1021/9, Prague 9

Hackathon Partners

Auspices

The event is held under the auspices of First Lady Eva Pavlová, the Government Commissioner for AI Lukáš Kačena, and Prague City Councillor for IT, Smart City, and Science, Research and Innovation Daniel Mazur.