The HYPOTHESIS XXI Warsaw 2026 is a prestigious event held annually in different countries around the world. It brings together representatives of business, government, research centres, academia and science.

It is dedicated to the exchange of experience and the presentation of the latest investment, infrastructure and research projects related to hydrogen technologies, synthetic fuels, decarbonisation and climate neutrality across the entire value chain – from renewable energy sources to end users, in both stationary and mobile applications.

The HYPOTHESIS XXI Warsaw 2026 conference will be held in Poland for the first time, from 23 to 27 August 2026.

The Polish edition is organised by the National Centre for Nuclear Research and the Energy Institute – National Research Institute, in cooperation with the Warsaw University of Technology.