Passive House is celebrating its 30th birthday this year! Starting as an experiment, great credit can be given to this pioneering project by Professor Wolfgang Feist: at a time when only very few people thought about climate protection, it paved the way for energy efficiency in buildings. Today, the Passive House standard has been implemented throughout the world and shines particularly brightly in beacon projects globally. More reasons for celebrating: the 25th anniversary of the Passive House Institute and the jubilee edition of the International Passive House Conference