ABSTRACT
ABSTRACT For environmental accounting of buildings Life Cycle Assessment is a proper and more and more widespread method. The assessment of the embodied materials is well covered by constantly improving databases (Life Cycle Inventories). On the other hand, calculation methods for the operation phase of the buildings vary in the literature. Specifically the calculation of the environmental impact related to the use of the energy source raise important questions. Our results show that in many cases the energy source has the most significant influence on the environmental impact of a building. The consideration of future change in the electricity production mix is a key aspect in the modelling of the environmental impacts. In this paper, we present a method for determining the future electricity production in Hungary and we investigate its influence on the specific environmental impacts.
