VARTOTOJŲ ENERGIJOS TAUPYMO IR ŠILUMINIO KOMFORTO SUPRATIMO TYRIMAS DARNIUOSE PASTATUOSE / SURVEY ON OCCUPANTS KNOWLEDGE ON ENERGY CONSERVATION AND INDOOR CLIMATE IN SUSTAINABLE BUILDINGS

Renewable energy technologies are increasingly integrated into the modernization of multi-apartment buildings, however their benefits are rarely assessed from a complex environmental, energy and economic point of view. The article presents the results of the modernization of a particular apartment building in terms of the production and consumption of energy in a building, from the viewpoint of the life cycle. The benefits of the building’s energy modernization were assessed by introducing active (heat pumps and solar collectors for hot domestic water production) and passive modernization measures. The results show that the integration of heat pumps when electricity is produced from non-renewable energy sources according to the analyzed categories of life cycle analysis is not eco-friendly.