The use of renewable energy sources is widespread worldwide. The advantages of the renewable energy sources is that there is no environment pollutant effect although the investment cost is expensive.
I attend to the solar energy in my document. I go into details the renewable energy sources’s Hungarian and the European Union political background. There are two documents the “National Building Energetics Strategy” and the “Nearly Zero Energy Consume Buildings’s Demands”. I am concerned with details like the contrasting of national and native circumstances; the vision and goals of the strategics; the definition of the nearly zero energy-need and the closeness of the root.
Solar Energy: general criterions like the heliation types. Then I concerned with the character-istic of the solar collector and the solar cell. There are more points like losses, types, the primal sections of the systems. Including the solar cell, I touch the flash defences and the protective devices.
I did measurements with the solar cell system of the department. Firstly, I describe the mechanism of the department’s system, and then I evaluate the results. I compare two weeks. One summer and one winter week. The standing-points are insolation- effective power ratio, the humidity, the anemometry, temperature of the air. I did the other measurement with the shade-giving accommodation. This accommodation has 5 sort heliation filter (6,25%; 12,5%; 25%; 50%; 63%) and the 0% filter. I did 2 gaging. I measured with all filters once. Then I measured with all filters twice, I got an average result. Then I did it again. I evaluate and compare the results.
Finally, I analyse a place of business to install solar cell system. I looked at the annual consumption, I sized up the effective area to install the solar cell system, I calculated the amount of the modules, and I compared the cost and payback.