Nowadays, people can not do without the gadgets, which their parents do not even have any idea. Even going into hiking and picnics, they take with them laptops, cameras, GPS navigators, televisions, stereos, etc. Dr.. Outlet in the surrounding trees have not yet integrated, and batteries tend to discharge. So, are particularly relevant renewable energy sources such as solar panels.
Homemade solar panels.
Choosing a home-made or. industrial solar. Is the choice of monetary costs and hobbies. A man or woman, whose hands fastened the right place, it can be done in one or two weeks a homemade solar panel. Prize money for the battery power about 60 watts, would be about $ 150-200.
Where to buy accessories?.
Currently, solar cells, from which the solar cell, are not deficient. They produce a lot of firms. For example, one can find elements in the radio market. You can buy using online services. But the best choice in terms of lowest cost, is the eBay auction. One element is the size of 8h15 cm without customs clearance and delivery of a. $ 02.08. The battery capacity needed Tues 50-60 36-40 elements. Some reserve is needed to replace damaged items in transit, T. to. they are very fragile.
stealth buying.
Materials and accessories on eBay is better to buy small quantities, in this case, you can save on customs duties. In addition to solar cells, flat wire will need tin - tire to combine elements into a common battery, solder the PIC -61 Schottky diodes, glue, flux, glass, PCB, or plywood, double-sided adhesive tape, and mounting corners alyuminievaye. Much can be purchased at local stores. It is better to choose a solar cell is soldered to the pin, t. to. self- ration of these findings is very labor-intensive.
technological advice.
First we need to determine the substrate material, t. e. so, what will be mounted solar cells. It is easier to use plywood, but when it comes to durability, it is better to use acrylic. From the side of the sun thin 2 mm from the substrate 4-6 mm thick. The elements are glued to the plexiglas with a thick double-sided adhesive tape. With the help of several layers of tape, you can adjust the distance between the outer and inner Plexiglas, t. e. thickness of the assembly within which the solar cells are. The ends of the assembly is sealed with silicone sealant. Strengthen the ends can be aluminum corners.
Results and measurements.
If you have done and put together correctly, at idle (no load ), your battery should provide approximately 21-22 B, 17-18 under load V at 3.3. 5 A. Thus, we have an output power of about 60 W. Schottky diode is a diode with a low dropout voltage, t. e. low loss at the transition. It must be used if you charge the battery using the solar battery. In the absence of solar LED does not discharge the battery by the reverse current.
What does the industry?.
Take for example the module 60 W (glass solar panel size 102h48h3. 8 cm, weighing 6 kg). 17V voltage under load, the current 3. 5 A. There is this product is approximately $ 370.
Stealth install solar panels.
Quite clear that the best way to put solar panels in less shaded areas and as high as possible to their ... Empirically found that the front side of the solar cell should be oriented to the south, with a deviation of not more than 15 degrees. Ideal system to change the angle, depending on the position of the sun, m. e. motorized. But these drives are quite expensive. Typically, solar cells are placed just on the slope of the roof.
The work of the solar panels and windmill.
Many firms offer. autonomous power systems that integrate a number of renewable energy. For example, it may be wind power, small hydropower and solar power. Next, use the control and stabilization of the controller battery pack itself. In this case, almost always running at least one energy source. With an annual constant price increases for electricity, such systems are becoming more popular.
findings.
Of course, everyone chooses what to spend money. But if we talk about saving the environment, good for ecology, solar panels - is the ideal solution. Year after year, their efficiency increases. In addition, there are devices such as. solar collectors. This is a device for the direct collection and utilization of solar heat in the home. Tandem solar cells and solar more efficient. Try to do that either with his own hands, and your life becomes more interesting. Perhaps you will find new friends or build your business.
Yaakov Kuznetsov.
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