In addition to passive house certification, heroal systems are also tested and certified on the basis of the Minergie standard. The Minergie label is a certification for buildings in Switzerland that have been built or refurbished with a focus on sustainability and energy efficiency. In Switzerland, Minergie and Minergie Plus represent the highest energy standards for buildings, mutually supported by the industry, Swiss cantons and the Swiss confederation. Projects and products with Minergie certification require low energy and, for a large part, are made of renewable resources. The advantages of the Minergie standard are an increased thermal comfort, improved air quality, the maintenance of value due to outstanding quality, reduced energy cost, lower CO2 emissions. The Minergie standard provides transparency for architects and planners regarding the selection of suitable systems for the construction of energy efficient buildings.