Many universities in Turkey have been carrying out research on houses that produce their own energy. However, Güneş Evi, which was built by the Diyarbakır municipality in southeastern Turkey with the support of the European Union and other sponsors, embodies many desirable characteristics lacking in these other attempts. It costs YTL 300,000, excluding the cost of the land, to construct a house with the basic features of Güneş Evi.
Annual sunshine hours in Turkey range from about 2,000 hours in Diyarbakır to over 3,016 hours in southeastern areas, and the main centers receive approximately 2,600 hours of sun.
You can find solar collectors in almost any city in the country right now. Meanwhile, Güneş Evi, which was equipped with more advanced technology, has heating and cooling systems. Güneş Evi produces electrical energy and saves energy as well.
The house has 30 solar panels of 80 watts each and two solar collectors on its southern roof, which has a slope of 40 degrees in accordance with the latitude of the area. The roof also has a reserved area that can be used for placing more solar panels and solar collectors. Güneş Evi is designed in such a way that it is possible to transform the produced electricity into hydrogen through a process known as Electrolyser and to store the electricity during the sunny hours of the day. Meanwhile, hydrogen that is stored in the morning will either be transformed into electricity through fuel cells or turned into heat through a �combi� boiler that uses hydrogen.
Air that comes into the house from an air hole at the bottom rises with the impact of heat. Afterwards it re-enters the house from the air hole located at the top and paves the way for rapid heating of the house.
If the top external air hole opens and the inner hole closes, air which flows with the chimney effect will take in the fresh air coming from the underground channels and cool the area. Water flows through special pipes that are located three meters below ground and carries the underground heat of 15 degrees to the house. As a result, this system cools the house without using air conditioners, especially useful in a city like Diyarbakır where the summer heat is above 50 degrees. The southern front of the house remains shaded by the ivies and trees that patch off during the summer months. Glass walls that surround the eastern, western and southern fronts of the house also produce energy.
The diverse measures that the project uses to produce energy will be disseminated through the Internet shortly. The only items in Güneş Evi that could be evaluated as being expensive compared to its predecessors are the photovoltaic, or PV, panels, which produce electricity.
Selling extra quantities of solar energy to electric companies will also be possible in Turkey after the country manages to build the necessary infrastructure in the area and on the condition that it does not violate the relevant legal framework.