When buying a car or appliance, an energy efficiency label, usually indicating energy efficiency classes, is displayed to inform the consumer of the product's energy efficiency. When talking about energy efficiency in the built environment it is important to know how much energy is consumed by various building types. Within the EnerKey Project an EnerKey Performance Certificate for South African buildings was developed. The certificate compares the consumption of a building with national reference values taken from the South African National Standard on Energy Efficiency in Buildings (SANS 204-1).
Designing and planning high-performance buildings requires profound knowledge of the complex interaction between architecture, building, heating, cooling, air-conditioning and lighting technologies. With the aim of substantially improving the energy performance of buildings, Fraunhofer IBP has developed sophisticated building concepts for more than 25 years now in close collaboration with the construction industry.