Von Minergie-A zu Nullenergiegebäuden

From Minergie-A towards net zero energy buildings.

Minergie-A prescribes an annual net zero primary energy balance for heating, cooling, domestic hot water and ventilation. Additionally, Minergie-A is the first standard worldwide which includes a requirement in regard to embodied energy. The analysis of 39 Minergie-A buildings shows that a wide range of different energy concepts and embodied energy strategies are possible in the scope of the label. The basis of all Minergie-A buildings is a well-insulated building envelope, however. Including the electricity for appliances and lighting in the net zero energy balance, the step from Minergie-A to a net zero energy building (Net ZEB) is done. Appliances and lighting increase the total energy demand. It is shown that the net zero energy balance during the operational phase of Net ZEBs clearly outweighs the increased embodied energy for additional materials in a life cycle energy analysis. Otherwise the grid interaction is lower for Minergie-A than for Net ZEBs. Since March 2011 approx. 180 motions arrived for Minergie-A. Architects and designers welcome the requirements in regard to the net zero balance and embodied energy. Minergie-A for office buildings is under development.