السبت، 14 يناير 2012

Solar power

                           In our life, with all these changes, we need for many sources of energy to complete our life as we need. One of these sources is the Solar Power. This source is more important that the others because it is a natural and permanent. Due to importance of this source I’m going to write more about this topic in this report.
                           Solar power is the change of sunlight into electricity, there are two ways to change the sunlight The first way is directly using photovoltaic (PV), and the second way by using concentrated solar power (CSP). “In concentrated solar power systems they use some tools e.g. lenses or mirrors and tracking systems to focus a large area of sunlight into a small beam”. (Solar power,  2011). Photovoltaic change light into electric current using the photoelectric effect.
                          In the past the ancient Egyptians built the houses that stored energy from the sun during the morning and saved energy to use it at the night and benefit from stored energy. In the 3rd century B.C., there was a man called Archimedes he helped Greek soldiers on the war with the Roman by focusing a light on a Roman fleet using mirrors, Archimedes used the mirror to concentrate on the sails and burn it by the energy of the sun so the fleet was destroyed. After this happened, the Roman retreated and the Greek were able to attack the Romans.
                           The development of solar technology in 1860 with increased fears that the coal soon be scarce, photovoltaic built fastlly in 1970 to 1983 also the decrease in oil price helped the PV to growth rapidly.

              “Photovoltaic production growth has averaged 40% per year since 2000 and installed capacity reached 39.8 GW at the end of 2010, As of October 2011, the largest photovoltaic PV power plants in the world are the Sarnia Photovoltaic Power Plant, Montalto di Castro Photovoltaic Power Station Italy, 84.2 MW and Finsterwalde Solar Park Germany, 80.7 MW”. (Solar power –Wikipedia)
               Also announced that four new solar power plants capable of providing 7million watts of peak generating capacity (AC) - enough to serve 4,550 average homes - have been connected to the utility's Inland Empire grid, enlarging SCE's community solar network to 15 stations. (Southern California Edison. 2011)
                           All in all, the Solar Power is very useful and important in our life. It is clean source and not going to be finished in any time. In addition, it is will not require a big budget of money to use it. It is a grace from our God and we should use it carefully in good ways.

Ahmed Abdulla Salem    CLC
Word: 401





References
Solar Power History. (n.d.). ThinkQuest : Library. Retrieved October 27, 2011, from http://library.thinkquest.org/17658/sol/solhistoryht.html
 Solar power - Wikipedia, the free encyclopedia. Wikipedia, the free encyclopedia. Retrieved October 27, 2011, from http://en.wikipedia.org/wiki/Solar_power
 Solar power - Wikipedia, the free encyclopedia. Wikipedia, the free encyclopedia. Retrieved October 27, 2011, from http://en.wikipedia.org/wiki/Solar_power#Development_and_deployment
Southern California Edison Re-Engineering Neighborhood Power Circuits. (n.d.). Pro Quest. Retrieved December 12, 2011, from search.proquest.com/docview/873248662?accountid=1215


APA formatting by BibMe.org.




ليست هناك تعليقات:

إرسال تعليق