Posted by admin | Posted in Solar Panels | Posted on 19-12-2009
Tags: electricity, energy, panels, power, solar
What is the best solar panel to install in a house?
Hello everyone! I am interested in making a solar panel to be connected to my roof. is best an amorphous silicon or polycrystalline silicon? Who can give me information on how I can buy this product here in the Philippines, Luzon? Thx to all.
Hello. Here is some useful information for you. Solar Power, solar panels or modules Introduction convert sunlight directly into electricity a DC. This is a process within the semiconductor silicon cells. The light energy is transferred to electrons in which power is available, this you see that the output depends on the amount of light energy that falls on the panel. Temperature has an effect, but is insignificant in comparison. The panels are generally designed to charge a battery of 12volts, for charging a higher voltage of about 14volts is required for a load on the battery. A panel will have a voltage of about 20volts without charge. When the panel is connected to the battery charging current to flow through the battery causing the panel voltage to the voltage drop battery of 12-14volts. The panels can also be connected in parallel, which increases power output by the sum of the current produced by each panel. The output power depends on the weather, the location of the panels and many other variables – hence the exact figures are hard. Experience in a sunny climate peak production of about 80-100% of the panels of nominal output can be expected. An average of 50% during the day can be improved by moving the panel to track the sun. Since it is difficult to define levels of light without the need of expensive equipment, a guide for groups to begin to charge the battery system is that the black and gray clouds remove direct light that groups need to give a useful output, white clouds allow enough direct light to pass. Cloudy days are usually produces enough to overcome the automatic discharge of the battery. Solar Regulator A regulator / charge controller is needed when the maximum current of the battery exceeds 10% the battery capacity in hours Amp. The use of a regulator / charge controller to prevent excessive charging of the battery, and is essential in large panels or where used batteries of small capacity. If the output of a solar panel is less than 10% of battery capacity of a diode can be used in place of a regulator. When The panel is capable of supplying energy to the battery, the diode allows through when the panel can not supply power (at night or in bad weather), the diode prevents the battery discharging back through the panel. The fuses should be used as a security measure, and located as close to the battery as possible. Panels can also directly power equipment, they must be loads such as fans and pumps, not voltage sensitive equipment such as televisions, radios, etc. When you use solar energy to charge a battery, the computer can be connected and used at the same time, the battery voltage stabilizes. Cell types four main solar solar cell technologies are commercially available: Single crystal silicon (mono-crystalline) cells are sliced from ingot of pure crystalline silicon. (~ 15% conversion efficiency). CIS (Copper Indium diselenide) represent the latest development in solar cell technology thin film. Approximately 11% efficiency. Polycrystalline or multi-crystalline silicon molten silicon is poured into a mold and then sliced into cells. Now the technology more efficient (~ 16% conversion efficiency). LCD display commonly used in toys, calculators and consumer electronics. Technology thin film, low-cost alternative, but less efficient (~ 8% efficiency). What size panel do I need? required for 12-volt battery load (ideally). This depends on the size of the battery you have, the amount of energy it uses and the amount of sunlight available each day. In terms energy measures the amount of energy consumed in the hours of amps. A 1 amp draw over 2 hours a total of 2 hours Amp (AHR) of the current. Determine the number Amp hours is used to run their computers in a single day, like lights, TV, Stereo. If we divide the power of the equpment by 12 that amplifier will give you a rate approximately of hours. For example, a 15 "LCD TV rating of 36 watts uses approximately 3 amps per hour. The maximum current has a solar panel is given by the division power panel 17. for example, a 75-watt solar panel will provide a maximum load current: 75 divided by 17 = 4.4 amps per hour. When possible, is a good idea to reduce the amount of energy consumed by our low-power television and low energy lights are good solutions.
Solyndra Reshapes Solar Panels for Commercial Rooftops
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