Abstract:In the work presented, the pilot project named ť Solar roof Špansko-Zagreb supplies household heat and electricity using solar energy. The given yearly data  has been compared with result simulations for the Zagreb area. On the roof of the building, the solar main sewers surfaces of 10 m 2 and solar PV modules that have the power of 7,14 kWp, have been placed. Storing of thermal energy for heating and preparation of the consumers warm water insures the solar fuel tank of volume 750 liters. When there is lack of energy from the Sun's radiation, as the additional energy source gas is used for the systems heating and warm water. The solar photovoltaic system works parallel with the plant for distribution network, which is meant for the use of electricity supply spent in the families house. The respective surplus of electricity is given  to the distribution network. System produces highest electricity in the middle of the day, where disburdening nets help throughout peak-loads. During the time solar modules do not produce sufficient energy, additional energy needed is taken from the net. System has been designed to be fully automatic. Project consists of around 30 sensors with the possibility of measuring across 150 different parameters. Project uses new energy sustainable technology which is in the accordance with the environmental protection and sustainable development. With this ecological access, use of electric and thermal energy in the household has reduced broadcasts of noxious substances in the environment, that includes the greenhouse gas, called carbon dioxide, who contributes the most to the global warming. To conclude, you have been given energy-economical and energy-ecological analysis of this project.

AUTHORS

Ljubomir Majdandžić
Hrvatska stručna udruga za sunčevu energiju, J. Kavanjina 14, HR-10090 Zagreb
Tel.: ++38 5 1 38 79 122, Fax: ++38 5 1 38 88 918
E-mail: majdan@hi.hinet.hr
Zdeslav Matić
Energetski institut Hrvoje Požar, Savska cesta 163, HR-10001 Zagreb
E-mail: zmatic@eihp.hr
Mario Perić
Brodarski institut, Ave. V. Holjevca 20, HR-10020 Zagreb
E-mail: peric@hrbi.hr
Luka Čarapović
Đuro Đaković, Aparati d.d, Dr. M. Budaka 1, 35000 Slavonski Brod
Tel.: ++38 5 35/444 894, Fax: ++38 5 35/447 856
E-mail: dd-aparati@sb.tel.hr