- Solar energy technology
- Essay on Solar Energy and its uses
- Essay on “Solar Energy” Complete Essay for Class 10, Class 12 and Graduation and other classes.
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The glass provides electrical insulation. It is also good protection from weather and other damaging forces.
Solar energy technology
When minimal energy is needed, such as that necessary to power a small appliance, a single PV solar panel is sufficient. If the power will not be supplied to the power grid, the solar panel s is connected to a charge controller, and battery. If it is intended for on-grid use, the solar panel array will be connected to an electrical inverter.
PV solar power is solar energy in the form of sunlight, which has been collected by a photovoltaic module, and converted into usable electricity. Conventional silicon solar panels convert about 14 to 17 percent of sunlight into usable electricity. Late in , however, a new solar cell was introduced. Solar panels that utilize the new cell can convert into electricity 22 percent of the sunlight they collect. Theoretically, the maximum that the cells of a solar panel can convert is said to be around 26 to 27 percent of incoming sunlight. Each photovoltaic cell in a PV solar panel is a semiconductor.
When sunlight hits those cells, a certain part of the sunlight is absorbed by those silicon cells. The electrons begin to flow, and this creates an electrical current.
Essay on Solar Energy and its uses
Metal contacts built into the top and bottom of the PV cells draw off that current and it is sent to the grid or battery. It is now usable electricity.
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The power grid sends it on its way, if you have used an on-grid connection. If you are using a battery, it is stored in the battery awaiting your need. PV solar power is being used increasingly with great success, and while it is true that cloud cover can affect it, the cloudy country of Germany leads the world in successful use of solar panels.
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Essay on “Solar Energy” Complete Essay for Class 10, Class 12 and Graduation and other classes.
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For instance, wind, biomass and hydropower are all forms of solar energy. Wind develops through lows and highs in temperature. Wind drives waves. Rainfall, created by sun-warmed evaporated water feeds the rivers that are sources of hydro power. Fossil fuels are also forms of stored solar energy.
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Coal, oil and gas formed hundreds of millions of years ago from decomposed plant matter. Plant matter that grew by aid of the sun. The architecturial design of the buildings helps in their passive space heating using solar Energy. Following strategies are useful for passive space heating:. Provision should be there for an insulating screen cover for cooling requirement in summer.
An active technology of solar space heating needs a collector to absorb and collect solar radiation. Subsequently fans or pumps are used to circulate the needed air or heat absorbing fluid generally water. Water systems are more common than air systems as they offer better heat exchanger performance. Photovoltaics PVs are arrays of cells containing a solar photovoltaic material that converts solar radiation into direct current electricity. A number of solar cells electrically connected to each other and mounted in a support structure or frame is called a photovoltaic module.