The Solar panel or solar cell is a device that consists of Photovoltaic cells is used to capture sunlight and convert it into electrical energy. Solar energy is great and is not limited, making it as the renewable energy sources are constantly being developed to meet the electricity needs of human being. As we know that the fossil energy which has been used is a type of energy that is limited and could not be updated. So, if it runs out, then its use should be stopped. That’s needed because renewable energy that can replace the function and role of fossil energy in meeting the electricity needs of man.
If the solar system can be absorbed over 1% of the surface area of the earth, it will cover the consumption of electric energy needed for the entire world. The sunlit surfacing the earth with large volumes. It is very different to fossil energy is limited and could not be updated. In addition, solar energy is also very environmentally friendly, due to its use does not produce CO2 emissions harmful to the environment. This is why solar energy was chosen as an alternative waterwheel to meet the needs of electric energy as well as to safeguard the Earth from the effects of global warming.
The solar panel technology has been developed widely and potential. Through solar panels, so sunlight converted into electricity by process streams of negative electrons and positive in the cell module due to the difference electron. The results of this conversion which can then be used to operate the electronic equipment or are first converted into AC current by using an inverter. The average solar panel module product market produces a voltage 12/18 VDC and amperage between 0.5 / 7 Amperes. On the market are usually sold in packages and can also be combined with the use of the electricity. Generally, solar panels are used for home lighting lamps, offices and public facilities.
There are three types of solar panel; they are Monocrystal (Mono-crystalline), polycrystalline (poly-crystalline) and Thin Film Photovoltaic. Monocrystal is the most efficient panels produced with the latest technology and produces electrical energy per unit area is highest. while the polycrystalline is a panel that has a random crystal composition as manufactured by the casting process and Thin Film Photovoltaic is a panel with two-layer structure thin layer of microcrystalline silicon and amorphous with a module efficiency of up to 8.5%
There are many benefits to be gained from the application of solar panels, for example, the potential for solar energy utilization is evenly distributed so that it can be used for remote areas beyond the reach of the electricity, the installation process is relatively fast, Solar energy is very clean, power systems solar has proven reliable over 50 years to support the space program, the solar panel is one tool that can harness the energy potential of solar radiation of 4.8 kWh / m2 / day and the solar panels are also very modern and futuristic.