Is a voluntary standard for energy efficiency in a building, which reduces the building’s ecological footprint, resulting in ultra-low energy buildings (German: Passivhaus).
Requires little energy for space heating or cooling. By late 2008, estimates of the number of Passive house buildings around the world ranged from 15,000 to 20,000 structures. As of August 2010, there were approximately 25,000 such certified structures of all types in Europe. The vast majority of passive structures have been built in German-speaking countries and Scandinavia.« Back to Glossary Index