Passive House Institute | iPHA

Research ServicesHesse, Germany51-200 Employees

The Passive House Institute (PHI) is an independent research organization focused on developing the Passive House concept, a performance-based energy standard for construction that is internationally recognised. Its work, supported by the International Passive House Association and a broad member network, aims to advance the adoption of the Passive House standard worldwide to improve building health, comfort, and environmental impact. The institute serves professionals in the built environment, including architects and sustainability consultants, by providing a framework and knowledge base for designing and evaluating highly energy-efficient buildings.
Based in Darmstadt, Germany, PHI operates within the research services sector and collaborates with partners to extend the reach of its standard. The organization is part of a broader ecosystem that includes related initiatives and publications, and it has pursued collaborations and product developments in recent years to support retrofitting, timber construction, and other aspects of high-performance building practices. A notable recent development includes partnerships and new tools that reinforce its role as a leading reference in energy-efficient construction.

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