The independent institute for maximum energy efficiency in buildings
Welcome to our website!
Energy-efficient buildings are essential for effective climate protection. They guarantee maximum living comfort, good air quality, and low energy bills. The building standards Passive House and EnerPHit retrofit present proven, cost-effective and reliable solutions for achieving outstanding energy efficiency in buildings.
For more than three decades, the Passive House Institute has been one of the leading independent research institutions in the field of highly energy-efficient construction and retrofits. In addition to our research activities, we offer comprehensive advice on efficiency measures and project support, train specialists, certify energy-efficient buildings and building components, and develop planning tools.
Together with the affiliates of the International Passive House Association, we globally advocate for Passive House principles in policy, media, and across the construction industry.
NEWS // Unlock new opportunities with EnerPHit-ready certified windows!
The latest update to the Passive House certification criteria for transparent components introduces a new opportunity: certified windows can now demonstrate their suitability for step-by-step EnerPHit retrofits.
The EnerPHit assessment is currently available for cool temperate and warm temperate climate zones, offering clear guidance and reliable performance data for each stage of the retrofit.
Already certified or considering certification? Send us an email to add EnerPHit retrofit suitability to your products.