CleanTech Hackathon
23-24 May 2025 @ Energy Expo - Hala Laminor, Bucharest
FOR ENERGY INNOVATORS COMMUNITY
in Romania, Republic of Moldova & South-East European markets

CleanTech Hackathon in SEE

The first cleantech hackathon in SEE dedicated to innovations in energy & sustainability: 100 participants, 40 teams, one international community
The starting point for your interaction with the CleanTech Nexus Accelerator Program
One weekend, full of mentoring, matchmakings and technology validation with our international mentors and experts in energy & sustainability
Recognition and validation in front of SEE’s leading energy and sustainability community, including corporate professionals, researchers, and investors
Why should you join?
To inspire creativity and
critical thinking for the clean
energy innovation & technologies
To encourage diversity and growth among the next generation of scientists, technologists, designers, engineers, and artists
To foster collaboration with the leading clean energy company in SEE with activities in energy production, distribution (electric & gas), renewables
Ideal Participants
You can join as a Company, Team or Individual
Startups & Entrepreneurs, from the spectrum of energy & sustainability disciplines
Practicing Scientists and Technology enthusiasts with a background in programming
Experts & Energy innovators, particularly those drawn to the science and technology of cleantech
Builders & tech students, with a focus on practical applications
Science enthusiasts, regardless of their professional background
Jury and mentors: corporate professionals, researchers, investors
Examples of Challenges

- Grid Integration of Renewable Energy Sources
- Cybersecurity in the Energy Sector
- Prosumers and Energy Communities
- Data Analytics and AI in Energy Management
- Energy Storage Innovation
- Circular Economy
- Energy Efficiency in Buildings
- Sustainable Transportation
- Energy Access and Affordability
Award Categories
The finalists will be reviewed by an executive committee composed of invitees from the Romanian Ministry of Energy, competition partners, and industry experts.
Each finalist project will be evaluated by all executive judges. Based on their individual assessments,the committee will nominate teams for one of the following award categories.
Best Use of Science
The solution that makes the best and most valid use of science and/or the scientific method.
Best Use of Data
The solution that best makes data accessible, or leverages it to a unique application.
Best Use of Technology
The solution that exemplifies the most innovative use of technology.
Most Inspirational
The solution that captures our hearts.
Best Storytelling Award
The most creative communication of the potential of open data through the art of storytelling.
Local Impact Award
The solution that demonstrates the greatest potential for local impact.
Benefits for Partners
Tech Scouting
Identify emerging energy technologies and trends (renewables, smart grids, energy efficiency, customer solutions)
PoC Validation
Test internal innovation concepts via participant challenges, refining strategies and prioritizing program projects. Explore promising hackathon solutions.
Partnerships & Collaboration
Engage and find potential partners among the participants
Talent Acquisition
Discover and recruit skilled candidates for internships or employment
Innovation Ecosystem
Build a vibrant energy innovation ecosystem, supporting open innovation and enhancing your corporate reputation.
Knowledge Development
Gain new insights and enrich internal expertise and skills
Brand Visibility
Elevate your company’s innovation programs and highlight its commitment to cutting-edge advancements
Join the hackathon and engage with the innovators community
Project Timeline
Hackathon Agenda
Day 1: Friday, May 23, 2025
09:00 - 10:30
Registration & Welcome.
Participants check in, enjoy refreshments, and network.
10:30 - 12:00
Opening Event.
Welcome speech by organizers and partners, introduction of challenges and prizes.
12:00
Hacking Begins!
Teams start working on their projects.
12:00 - 13:30
Challenge Briefing & Insights
Partner experts present details of each challenge.
13:30 - 15:00
Lunch & Workshops
Lunch with challenge owners. Parallel workshop sessions for clarifications.
15:00 - 21:00
Hacking & Mentorship — Teams work intensively. Mentors provide guidance.
Parallel Sessions & Hacking — Workshops on startup development, energy, and cleantech. Hacking continues.
Dinner & Networking — Relax, connect, and share insights.
Day 2: Saturday, May 24, 2025
08:30 - 10:00
Breakfast & Networking
Teams prepare for the final stretch.
10:00 - 12:00
Innovation Labs & Hacking
Workshops, and final coding refinement with mentor support.
12:00 - 13:00
Final Hacking & Submission
Teams finalize projects and submit code and presentations.
13:00 - 14:00
Lunch Break & Networking
16:00 - 18:00
Awards & Closing Ceremony
Winners announced, prizes awarded, and closing remarks.
14:00 - 16:00
Pitch & Jury Deliberation
Teams pitch their solutions to the judges for review.