Solar Energy:Absolutely Clean Power

Today when the energy sources have started depleting and fossil fuels have deployed the life devastating effects, another Green Energy source, which was evident to the entire universe, has come into our consciousness. That is the Obtaining energy from the Sun. The energy obtained from the Sun is Solar Energy. Let us see how this energy originates, develops, is being transferred, and deployed to sustain life of earth. The Sun works on two principals, number one is Fission (breaking up of single atom into two new ones) and second is fusion (combining of two different atoms in to one new atom) of atoms. In this process, the enormous amount of energy release and that energy is in visible form is light and invisible forms are ultraviolet and infrared radiations. This light is Solar Energy when converted to drive the life on earth. Like the plants, absorb Solar Energy to generate the energy by a process Photosynthesis, in which they break up the CO2 into Carbon (C)and Oxygen (O). 

The carbon develops the plant body structure and oxygen released in the environment and ecosystem. The human body to generate the essential Vitamin D also absorbs the Solar Energy. The electricity is also generated though Solar Energy by administering the devises using the principle of photovoltaic effects.Another form of Solar Energy is heat supplied inform of infrared radiation by the Sun. The metallic heat conductors absorb the heat through infrared radiation and heat the water. The result is production of steam that is supplied to the steam turbines to drive the generators which, produces the electricity. Thus, Solar Energy has many applications through conventional and modern methods of energy production. Lets us look at the vast Solar Energy working area.The Solar Energy has many broad applications that are classified in following categories.

1. Active Solar Power and Passive Solar Power

2. Direct Solar Power and Indirect Solar Power

3. Concentrating Solar Power

(i) Line Focus

(ii) Point Focus

4. Non-Concentrating Solar Power

The Active Solar Power comprises of the technology that uses modern instruments electrical or mechanical to harness the power of Solar Energy. The Photovoltaic cells the, pumps, fans, etc. The Passive Solar Power technology In Solar Energy uses the non-mechanical methods i.e. static processes and methods. Like to heat up a room you need to build a room facing maximum times either the Sun or you can heat up the air and can let it heat up room naturally. The indirect methods of using Solar Energy, involve the methods in which there are multiple processes before the result is out. Examples are Photosynthesis, development of fossil fuels, central heating systems using alternative liquid to heat up the domestic water supplies, Wind Power used by wind turbines etc.

In Direct Solar Power applications comes the photovoltaic cells , Solar cookers to prepare food, Solar water heaters , Solar Energy Mills( conceptual idea of light hitting a pane and it rotates as a result of mechanical energy imparted by Sunlight), Solar Sails for space crafts etc. Concentrating Solar Power methods uses the geometry in reflecting the Solar Energy through lenses and mirrors. The parabolic and hyperbolic mirrors and the lenses are used to focus the light rays in one point or along one line. The heated up points or lines are the metallic chambers filled with liquid which transfers the heat to the secondary liquid generally water to generate electricity by Steam- Turbine electricity generator. Non-concentrating are plane Solar Energy absorbers, like a panel of Photovoltaic cells or a large surface area of forest or the Solar Ponds which traps heat energy in the salt layers in depths.

There are many advantages of Solar Energy as well as disadvantages also. There is enough of Solar Energy (about more than 100 times of what we humans use today) and it can be effective used without harming our environment. Solar Energy Generating stations are comparatively low at operating costs and maintenance. The technical advantages of Solar Energy are very promising as the transfer of electricity during peak hours is easily maintained when grid system is in use. The power density (amount of power in watts per square meter) of Solar Energy among renewable energies is quiet high (170W/m2). Disadvantages ofSolar Energy are it is available when sun shines i.e. no availability in rainy season, high costs of initial setups, technological barriers; Solar Energy storage of significance is not available , direct transportability is not available and the conversion of Solar Energy based electricity conversion losses ( from DC to AC) for grid based transmission.(For more you can visit)

www.space.jpl.nasa.gov/

http://www.silentwinds.com/channel/5913/why_solar_energy_may_be_the_solution_to_the_energy_crisis

http://edugreen.teri.res.in/explore/renew/pond.htm

http://www.solarfacts.net/

One Response to “Solar Energy:Absolutely Clean Power”

  1. yjdmd@msn.com says:

    MANDATORY RENEWABLE ENERGY – THE ENERGY EVOLUTION –R1

    In order to insure energy and economic independence as well as better economic growth without being blackmailed by foreign countries, our country, the United States of America’s Utilization of Energy sources must change. Our continued dependence on fossil fuels could and will lead to catastrophic consequences.

    The federal, state and local government should implement a mandatory renewable energy installation program for residential and commercial property on new construction and remodeling projects with the use of energy efficient material, mechanical systems, appliances, lighting, etc. The source of energy must by renewable energy such as Solar-Photovoltaic, Geothermal, Wind, Biofuels, etc. including utilizing water from lakes, rivers and oceans to circulate in cooling towers to produce air conditioning and the utilization of proper landscaping to reduce energy consumption.

    The implementation could be done on a gradual scale over the next 10 years. At the end of the 10 year period all construction and energy use in the structures throughout the United States must be 100% powered by renewable energy.

    In addition, the governments must impose laws, rules and regulations whereby the utility companies must comply with a fair “NET METERING” (the buying of excess generation from the consumer), including the promotion of research and production of “renewable energy technology” with various long term incentives and grants. The various foundations in existence should be used to contribute to this cause.

    A mandatory time table should also be established for the automobile industry to gradually produce an automobile powered by renewable energy. The American automobile industry is surely capable of accomplishing this task.

    This is a way to expedite our energy independence and economic growth. It will take maximum effort and a relentless pursuit of the private, commercial and industrial government sectors commitment to renewable energy – energy generation (wind, solar, hydro, biofuels, geothermal, energy storage (fuel cells, advance batteries), energy infrastructure (management, transmission) and energy efficiency (lighting, sensors, automation, conservation) in order to achieve our energy independence.

    Jay Draiman
    Northridge, CA. 91325
    12-26-2006

    P.S. I have a very deep belief in America’s capabilities. Within the next 10 years we can accomplish our energy independence, if we as a nation truly set our goals to accomplish this.
    I happen to believe that we can do it. In another crisis–the one in 1942–President Franklin D. Roosevelt said this country would build 60,000 [50,000] military aircraft. By 1943, production in that program had reached 125,000 aircraft annually. They did it then. We can do it now.

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