Use of alternative sources becomes more and more hot topic. Energy of the Sun takes the important place in this list, it is eco-friendly and renewable. And already today, for example, in the state of Vatican all consumed energy is developed by solar batteries.
Instruction
1. Solar batteries - the hi-tech device by means of which there is a transformation of solar energy to electric current. Batteries consist of the thinnest silicon films or other semiconductors. They weigh a little, are easy-to-work, have unlimited service life, mobile parts are absent. Low efficiency and high cost of devices can be carried to minuses of panels.
2. In the world there are solar power stations of tower and modular type. Tower figure prominently and they are more expensive. Modular panels are more economic. It is more expedient to build stations closer to the equator as sunny days in a year there most of all. Solar energy well is suitable for water supply of cottage and housing estates, sports and improving facilities.
3. In hot climate for use of energy of our star it is possible to construct, so-called, solar ponds are reservoirs with very salty water on which bottom sunshine get and there are absorbed. Water heats up below to 100 wasps while above remains cool. From a heated part of a pond heat is taken away and used for receiving the electric power, heating of buildings and ensuring hot water supply of houses.
4. For water heating solar installations are also used - they are reliable, quickly are mounted and pay off in a short space of time. Installations work with natural circulation at the expense of the store of solar energy, and by means of a storage container cold water is brought and then hot is taken away. In such devices water moves itself at the expense of the difference of pressure. Solar installations are applied to preliminary heating of water. Stores make from available and inexpensive metals - copper, steel, aluminum, etc.
5. Light wells, such as openings in a ceiling are applied to lighting of buildings in the afternoon. It is necessary in rooms without windows: industrial buildings, prisons, warehouses, underground garages and also metro stations.
6. Solar energy can effectively be used in transport. On hybrid cars and electric vehicles, boats, planes it is possible to establish photo-electric elements. Similar devices are already successfully used on roofs of railway trains in Japan and Italy.