Hydrogen + Fuel Cells Hannover Messe
Hannover, Germany
https://www.hannovermesse.de/en/expo/topics/hydrogen-fuel-cells-hannover-messe
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World Water-Tech Innovation Summit
February, 21-22, 2023 
London, United Kingdom 
https://worldwatertechinnovation.com Join 400+ water utilities, regulators, engineering firms, technology giants, start-ups, and investors to explore how to build energy efficiency and climate resiliency. Join us in London in 2023!
Paderbau
February, 24-26, 2023
Paderborn, Germany
https://www.paderbau.com/ PADERBAU - the future-oriented construction trade fair The PADERBAU, as the most important industry meeting place in the region, is an innovative trade fair for crafts and business for all topics related to the home and the garden. Every year, around 200 well-known companies from various subject areas present themselves and establish sustainable contacts with builders, owners and interested parties. In addition to extensive specialist information, PADERBAU permanently integrates cutting-edge topics. Sustainable construction, renovation and modernization, energy adjustments in the course of climate change or design suggestions are topics that appeal to many visitors.
