Green Transition World Congress
3-6 September 2026, Patras, Greece (and online)

The organizing committee and the Hellenic Open University invite you to the 1st International Green Transition Congress (GTWC), which will be held in Patras (Greece) as well as online.
The theme of GTWC is “Accelerating Towards Sustainability: Innovations in Renewable Energy, Biofuels, GIS, Water Management, and Smart Green Cities”.
The Green Transition World Congress aims to bring together experts, researchers, policymakers, and practitioners from around the globe to exchange ideas, share insights, and collaborate on solutions to foster a more sustainable world. With a focus on renewable energy, biofuels, geographic information systems (GIS), water management, and smart green cities, the conference will address key challenges and opportunities in these crucial areas.
All accepted papers from the Congress will be published by IOP and indexed by SCOPUS and the Web of Science.
Important dates
Abstract submission deadline: | 28 February 2026 |
Notification of acceptance: | 28 March 2026 |
Full paper submission deadline: | 30 May 2026 |
Poster submission deadline: | 30 June 2026 |
Early registration deadline: | 1 June 2026 |
Proceedings

Organization
Scientific Committee Chairs
Kyriakos Bourikas - Hellenic Open University (Greece) |
Sotiris Lycourghiotis - Hellenic Open University (Greece) |
Organizing Committee
Ekavi Isari - Hellenic Open University (Greece) |
Eleana Kordouli - University of Patras (Greece) |
Kalimeris Konstantinos - Academy of Athens (Greece) |
Sotiris Lycourghiotis - Hellenic Open University (Greece) |
Theodor Panagiotakopoulos - Hellenic Open University (Greece) |
Zafeirakis Zafeirakopoulos - University of Geneva (Switzerland) |
John Zafeiropoulos - Hellenic Open University (Greece) |
Webmaster
Zafeirakis Zafeirakopoulos - University if Geneva |