Integration of renewable energy sources in smart buildings to increase energy efficiency

U prvom djelu rada biti će opisan koncept pametne zgrade sa sustavom pametnih instalacija i trošila, te razlike u odnosu na klasične zgrade u pogledu potrošnje električne energije i ostalih energenata. Opisana je procedura za stjecanje statusa povlaštenog proizvođača električne energije preko fotonaponskog sustava integriranog u pametnoj zgradi. U drugom djelu rada opisan je fotonaponski sustav i princip rada svih njegovih komponenata što je važno za onoga koji takav sustav projektira i instalira ali i za investitora zbog financijske isplativosti tijekom vremena. Na kraju je dan praktični primjer fotonaponskog sustava i sva ispitivanja, tehnički proračuni kao i potrebne sigurnosne mjere za siguran rad takvog sustava.In first part of this paper, the concept of smart building with intelligent installations and loads is described. Also, differences between classic and smart building in the way of consuming electric and other required energy is pointed out. Suggestion of procedure for acquiring a status of a privileged electric energy producer from photovoltaic system integrated in smart building is given. In the second part of this work, photovoltaic system and the working principle of its components are described which is significant for those who use that kind of a system and those who invest in it. In the end, the practical example of photovoltaic system and its testing, technical calculations and the safety measures for using it is given