SOLAR CELLLS-THE FOUNDTION OF SOLAR ENERGY full report | |ABSTRACT | | | |A solar cell is a semiconductor device | | | |that converts solar energy into | | | |electricity by the photovoltaic effect‚ | | | |representing the fundamental power | | | |conversion unit of a photovoltaic system| | | |‚works under the principle of a P-N | | | |junction that absorbs light ‚ releases | | | |electrons and holes ‚ creating a voltage| | | |in the cell
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Material & Types of solar cooker‚ This report will explain the advantages‚ disadvantages of solar cooker & solar cooking and the challenges to change traditional cooking habits & what social & economic effect it has on society. In this report we are looking at the perspectives’ on how the solar cooker has helped us in fighting the ongoing deforestation & preserving the environment. It explains how the solar cooker helped in fighting against poverty & the use of renewable energy in rural areas
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SOLAR POWER IN TODAYS WORLD JEROME T. GARDNER COLUMBIA SOUTHERN UNIVERSITY ABSTRACT Since first discovered in the 1860s‚ the concept of storing energy from the sun to use as a source of power has been studied and pursued by many programs. Either using solar collectors or photovoltaic cells‚ the methods of using solar power are becoming more efficient and cost-effective. Solar technology is currently being used by homes and businesses‚ but is still too expensive and risky for many residents. Researchers
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The solar energy use in Africa These days‚ solar energy has been the most talkative alternative energy source in the world. Unlike the gas‚ oil‚ and coal‚ solar enrgy is one of the clean and renewable resource‚ which can not only generate power but also protect the environment. Africa‚ has second largest population‚ estimated 1.6 billion‚ however‚ around one third of it’s people still live in the condition with no eletricity. (Renewable energy in Africa
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Concentrating Solar Thermal Power 21.1 21.2 Introduction and Context................................................ 21-2 Solar Concentration and CSP Systems ........................... 21-6 Why Use Concentrating Solar Energy Systems? Dependence of Efficiency on Temperature 21.3 21.4 21.5 21.6 Solar Concentrator Beam Quality................................... 21-9 Solar Concentration Ratio: Principles and Limitations of CSP Systems........................................... 21-13 Solar Thermal Power
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explosion and the industrial revolution‚ our need for the electricity is drastically increasing. The fossil fuel we are using‚ however‚ is running short. Even though the supply is not a problem now‚ it will become sooner or later. Also‚ the deterioration rate of the Earth environment is alarming. The remediation must be taken immediately. For this‚ using more renewable energy is an ideal method to tackle the problems‚ reduce the global warming effect and provide a better living standard. The nation
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The plastic bottle is filled with only water and bleach. The liquid inside the bottle harnesses the light from the sun‚ capturing and diffracting the light to all parts of the room. It is equivalent to a 55 watt light bulb. [pic] [pic] What ’s the Technology It consists of a 1.5l PET bottle filled with purified water and bleach (10 ml). A special glue is used to bond and seal the bottle to the roof. Adding the bleach to the water makes sure that the water stays clean and transparent without algae
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Advantages of and Problems with Solar Energy by Ethan Goffman I’d put my money on the sun and solar energy. What a source of power! I hope we don’t have to wait until oil and coal run out before we tackle that. – Thomas Alva Edison‚ 1931 The oil embargo of the 1970s prompted a national surge of interest in solar energy. A solar water heater was installed in the White House‚ and photovoltaic panels first came into play‚ notably in California. While previously solar power as a direct source of electricity
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February 2014 (Intro) Solar Energy is an underrated renewable energy source. We should be looking to make advances to become more dependent on renewable energy sources such as solar energy. The more we rely on these new energy sources the more carbon dioxide‚ sulfur dioxide‚ and other greenhouse gases we could eliminate from the air which will help ensure a clean and safe environment for future generations. In addition‚ it could aid America to depend less on other countries for energy sources such as
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New ’solar paint’ could generate electricity from the roofs and walls of EVERY home without the need for bulky panels * ’Nanocrystals’ used to generate power * Can be painted or printed onto walls or windows * So tiny you could fit 250‚000‚000‚000 on head of a pin * Thin enough to be painted or printed onto walls One day‚ a thin film of ’solar panel’ could be painted over windows and walls to turn every home into a giant hi-tech ’sun trap’. The hi-tech solution could make solar
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