EFFORTS TO USE SOLAR ENERGY

The fuel oil now is very rare, and its presence is almost extinct. Therefore we ought to think to look for alternative sources of energy that can replace the role of the petroleum fuel. One that could be used is the energy source of the sun's heat or solar energy. Therefore it is very important when doing this effort to use solar energy.

You need to know, The sun is the primary energy source that emits an incredible amount of energy to the earth's surface. In sunny conditions, the earth's surface receives about 1000 watts of solar energy per square meter. Less than 30% of the energy is reflected back to space, 47% is converted into heat, 23% is used for the entire circulation of the work contained in the earth's surface, a minority 0.25% accommodated wind, waves and currents, and there is still a very small part 0.025% recorded through the process of photosynthesis in plants are eventually used in the formation of coal and oil (fossil fuels, a process that takes millions of years of photosynthesis) that is currently used extensively and exploratory, not only for fuel but also for plastic fabric, formica, other synthetic materials. That is to say that the source of all energy is solar energy. Solar energy can be utilized with a variety of different ways that fossil fuels are the result of photosynthesis, hydro electric power is the result of rain circulation of wind power is the result of the temperature difference between regions and solar cells (photovoltaic cells) that promises a bright future as a source of electrical energy. 

In good weather conditions, the solar cells will produce a constant voltage of 0.5 V to 0.7 V with a current of about 20 mA and the amount of energy received will achieve optimal if the position of the solar cell (perpendicular) to the sun but it also depends on the cell construction solar system itself. This means that a solar cell will generate power 0.6 V x 20 mA = 12 mW. If the sun radiates energy to the surface of the earth or, just imagine the energy produced solar cells have an area average o902/100mW2/100cmmW21cm compared with fossil fuels (BBM) by the photo-synthesis process that takes millions of years.