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Solar power electricity installations are gaining moment all over the world. Stock of fossil fuels is fast depleting and alternate natural energy solutions, like solar power electricity is becoming popular.
Natural energy solutions are environment friendly with little or no air pollution and no emissions or greenhouse effects. Solar power electricity production is also free of noise pollution.
How is solar power electricity produced?
It is produced by converting light from the sun into electrical energy using a silicon wafer / semiconductor called a photovoltaic cell. This technology is simple and easy to maintain.
What are the main parts of a typical residential solar power electricity system?
A typical residential system would have 4 key Parts:
1) Solar panel array
2) Charging controller
3) Batteries
4) Inverter
Solar panel array: Solar panel array is made up of several solar panels. A series of photovoltaic cells working in unison in a module form the solar panel. The solar panel array needs to be exposed to sunlight, and the array is normally installed on rooftops where sunlight exposure is more. The solar array converts light energy into solar power electricity. Electrical energy in the form of 12 volts (DC) is produced by the solar panel array.
Charging controller: The charging controller is the device that controls the amount of charging for the batteries. Batteries should not be overcharged, neither should they be undercharged. This device, which sits between the solar panel array and the battery bank, controls the charging.
Batteries: These are deep cycle batteries used for storage of solar power electricity produced by the solar array panel. The 12 volts (DC) produced by the solar panel array is stored in the batteries. The charging controller regulates charging, thus extending the life of these batteries.
Inverter: The output from batteries is 12 volts (DC) and can run only devices that work on 12 volts (DC). Most home appliances work on 110 / 220 volts (AC). Hence 12 volts (DC) needs to be converted into 100 / 200 volts (AC). The inverter does the job of converting 12 volts (DC) into 110 / 200 volts (AC).
Along with these four main components several other hardware accessories, wires and connectors would be required to have the complete solar power electricity system functional.
Krishnan Varadarajan is an Infrastructure Consultant with focus on alternate energy solutions.You can now install Solar Power Electricity on your own for less than $ 200. To get your DIY guide now visit http://www.know-to.com/energy/solar.html
Are Fossil fuels forever?
Fossil fuel is finite. That means it would not last forever. There is only so much oil that can be pumped out of the ground or seabed. Burning fossil fuel releases harsh pollutants into the environment. You can contribute to environment conservation by using cheap solar energy. But I have heard many complaints about solar energy efficiency.
Engineering Solar Energy
You can basically tap into the sun energy in one of two ways: convert sunlight into electricity or collect the sun heat for heating purposes. The solar thermal approach to solar energy reflects the sun heat from mirrors onto a pipe filled with fluid. As the fluid heats up, it can boil water to supply your home. On the other hand, photovoltaic cells or solar panels utilize silicon as a semiconductor to absorb the sun rays and produce electricity.
There have been plenty of advances in engineering that have boosted solar power efficiency. Solar thermal power is about 30% efficient in converting the heat of the sun into electricity. This is double the efficiency of solar panels. So that makes solar thermal systems a lot cheaper than solar panels. But the solar dishes have to be very large to capture enough sunlight to concentrate for heating. That is definitely not practical for your home. That is why most houses use compact solar panels instead.
New Advances
Compared to the early 2000 years, the silicon wafers on solar panels are now 40% thinner. Up to 36 silicon wafers are located on one solar panel which is now about 20% - 40% efficient in converting solar energy to electricity. The sort of electricity you get is called direct current or D.C. This has to be converted to alternating current, or A.C, before you can use it to power your toaster and washing machine. There is an inverter that does the job for you. So that means solar power efficiency from solar panels becomes very much reduced due to the electricity conversion process.
Scientists argue that the maximum efficiency you can get from present day technology for silicon based solar panels is only 40%. Therefore, to get the highest amount of returns from your solar energy systems, you should use passive solar heating techniques coupled with direct sunlight for day lighting in your home. By using the highest efficiency level solar panels for your other energy requirements such as household appliances you can maximize solar power efficiency.
Solar Power Efficiency Rates
Although many folks have switched to using solar panels and solar water heating systems, current solar power efficiency rates mean that solar power can only provide about 70% of the energy requirements of your household. Despite the ability of storing energy in batteries, you can not rely on solar energy during prolonged periods of cold weather with weak sunshine. So you should also be connected to a utility network that provides you with power at the flick of a switch.
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Start taking positive action today towards your economy and planet and you will be astonished just how things can be enriched and transformed.
A. Arvizu
There is no denying that for the past 110 years, electricity has been the key in providing the resources for the comprehensive developments and advancement achieved by mankind. Now, we look for systems that push forward renewable energy. Solar power home produced electricity is one energy source system.
Look all around us, and you will see that there are new technologies and inventions being developed with a dependence upon electricity. In addition, as the expansion of the world's economy amplifies so does the huge requirement for electricity. This massive demand is being met by hydroelectric generators, nuclear stations, solar farms, wind systems and other conventional methods of producing electricity.
Electricity producing methods of fossil fuels like coal and oil so far have given us the basic assets to create electricity with the use of steam turbine generators in utility power facilities. However, these techniques have been confirmed to be dangerous to the living ecosystems on earth, and have been mathematically shown to be a limited source of energy. In other words, fossil fuels for generating electricity are not renewable.
You would have to agree, in our present world, we cannot live without electricity. Our demand for electricity power is increasing almost daily and we clamor that new research which will lead us to the creation and expansion of safer and cleaner energy sources. Just as mentioned earlier, solar power home produced electricity is one valuable energy source system.
Basically, in use today for harnessing solar power energy, the two methods of employing solar electricity systems are indirect and direct.
Direct methods
use photovoltaic cells, termed solar cells.
made from wafer-thin slices of crystalline gallium arsenide, silicon, or other semiconductor materials which transfers solar radiation into a flow of electrons or electricity.
solar cells are connected in large numbers into clear anodized aluminum alloy and glass flat panels.
modern advancement of solar photovoltaic power cell panels has reduced cost of electricity to 20 - 30 cents per kilowatt-hour.
solar technology has been used from the beginning of space exploration to provide electricity energy to satellites both that orbit the earth and travel out into far deep space.
solar electricity systems provide a long-term and sustainable energy resource because there are no moving mechanical parts.
solar cells have relatively low efficiency rating.
solar power panels are dependent on the time of day, weather conditions and often seasonal changes.
solar electricity systems need to have an inverter to switch the DC voltage into AC current in order to be consumed in commercial enterprises and in homes.
Indirect methods
concentrates solar radiation into a focus so that the energy heats to boiling liquids (often water) which in turn drives turbines to rotate in magnetic field and produces electricity
employment of a parabolic trough that is made up of a linear parabolic reflector to concentrate solar energy into a receptor positioned on a focal line from the receiver; then, tubing connected to the turbine filled with liquid that takes in the heat generated through the application of the solar energy
this type of solar electricity generating systems has a higher efficiency because the sun's radiation is pinpointed utilized.
other developed technologies extend the indirect power generating efficiency rating by using solar energy towers along with sun reflecting dishes
We have realized through experience that even though fossil fuels are power producing beneficial, they are used with long-term negative consequences.
These realizations of negative outcomes have moved us towards a trend of renewable, non-pollutant sustainable energy to help guarantee life on earth is continued.
Plant life has used solar energy since time immemorial, so why can't we as intelligent human beings harness this solar power without negative consequences.
In many popular opinions, the big energy companies seem to be holding back progress, and in the intervening period, also are digging up the earth and polluting the oceans. It's up all earthlings to start looking to the heavens.
Solar power and wind generated electricity systems provide the methods to achieve the goal of sustainable living.
Paul Armenta wants to help you save lots of money by learning about solar power from others and the free electricity generating process so you can generate your own electricity power at home. Go to http://www.Best-SolarPowerHome.com The best solar power electricity information on how people want solar power panels for their homes are revealed. Solar power is an important way to help build a sustainable world. See blog for more solar info http://bestsolarpowerforhome.blogspot.com/
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