Find here all recordings and presentations from the 2nd day of the Green Cooling Summit: Too green to scale? Why is R290 still struggling in room Air Conditioning and how to make it the standard?
The virtual Summit jointly organized by the German Environment Agency (UBA (abre en una nueva ventana)) and GIZ Proklima on behalf of the German Federal Ministry for the Environment, Climate Action, Nature Conversation and Nuclear Safety (BMUKN) (abre en una nueva ventana) and the German Federal Ministry for Economic Cooperation and Development (BMZ (abre en una nueva ventana)) wrapped with a clear message: the transition to sustainable cooling is accelerating—and now needs scale. We look back on two days of inspiring keynote speeches, lively discussions and insightful inputs on the global transition towards sustainable cooling and heating in buildings with natural refrigerants.
Session 3
Making Buildings Green and Safe
Este vídeo está bloqueado debido a la configuración de sus cookies.
Day 2 of the Green Cooling Summit 2026 started with a session on safety standards and building codes. Dr Daniel Colbourne (Re-Phridge) showed that perceived risks of R290 are in no way realistic related to empirical evidence. Zhoulun Chen (UNEP) underlined that message by showing the importance of buildings codes. Building codes sit at the intersection of safety, energy, and climate — uniquely powerful levers. The session made clear: A good design of both these standards and codes can give clear messages and incentives to industry and the building sector to unlock the transformation process.
- Daniel Colbourne: 00:00:18 - 00:18:38
- Zhoulun Chen: 00:18:50 - 00:33:18
Session 4
Session 4: Roundtable on Air Conditioners
Este vídeo está bloqueado debido a la configuración de sus cookies.
The Summit then moved into an interactive stakeholder dialogue. Li Xiaoyan (MEE/FECO), Dou Yanwei (CHEAA), Marco Ferdinandi (Mitsubishi Aircon), Manuel Seethaler (Midea), and Wang Fei (Haier) shared perspectives on cooperation to scale green AC deployment across markets, policy, and technology. Their takeaway: while R 290 adoption is still limited and costs remain high, coordinated action by governments and industry is steadily advancing the transition. Ongoing collaboration and expanded production will continue to reduce costs and accelerate uptake—putting tangible breakthroughs within reach.
Session 5
Chillers with natural refrigerants
Este vídeo está bloqueado debido a la configuración de sus cookies.
The last session of the Summit referred to Chillers with natural refrigerants. In his presentation “from compliance to competitiveness” Ivo Eiermann (Johnson Controls) demonstrated that chillers with natural refrigerants are a viable alternative to replace split air conditioning appliances based on HFCs in commercial buildings. Ahmad Arabiat (PETRA) emphasized R290 as a solution for large capacity air conditioning units.
The technology with either R290 or R717 is available worldwide and can be operated safely provided that safety rules are followed. Moreover, HFC phase down and PFAS discussion will sustainably increase the demand for chillers with climate- and environment- friendly refrigerants (such as R290 and R717).
- Ivo Eiermann: 00:00:35 - 00:14:50
- Ahmad Arabiat: 00:14:50 - 00:25:22
Wrap-up and Closing
Lessons learned and way forward to Sustainable Cooling and Heating in Buildings
Este vídeo está bloqueado debido a la configuración de sus cookies.
The Green Cooling Summit 2025 concluded with a closing reflection by Program Manager Guntram Glasbrenner from GIZ Proklima and moderator Julika Schmitz. Together, they summarised key lessons learnt from the summit and addressed open questions: What progress has been made in sustainable cooling and heating? Which challenges remain unresolved, and what strategies are needed to overcome them? Their wrap-up highlighted both the momentum within the sector and the need for continued collaboration, innovation and policy support to drive the global transition forward.
- Guntram Glasbrenner: 44:00 - end