A solar panel is basically a device that enables the collection of and conversion of solar energy into electrical energy or even heat.
The Concept of Solar Panels
Solar panels are also known as photovoltaic panels and the atoms that are present in these panels are excited by the action of the sun's energy. These atoms are present in a silicon layer that lies between two panels known as protector panels.
A formation of electric current takes place as a result of the action of the electrons from the aforementioned, excited atoms, and these are then used by a myriad of external devices. The history of solar panels dates back by hundreds of years, when their sole purpose was to heat the water for use in homes. Many-a-times specially shaped mirror is used for the concentration of light onto a tube of oil. Due to this action, there is a heating up of oil and as these heated oil travels through a vat of water, it instantly results in the boiling of this water. The steam that is a resultant of this process of boiling is used to turn a turbine for the generation of electricity.
The History of Solar Panels
It was in the year 1839 that the photovoltaic effect was discovered by Antoine – Cesar – Becquerel, a French physicist. His experiment in this regard involved the placement of an electrolyte cell in an electrolyte solution; two metal electrodes made up the electrolyte cell.
When this device was exposed to sunlight, Becquerel found that the generation of electricity saw a marked increase. It was in 1883 that Charles Fritts coated sheets of selenium with a thin layer of gold and built the first genuine solar cell. Over a period of time many experiment were conducted and discoveries were made when it came to solar cells. Albert Einstein also published his thesis on the photoelectric effect, during this time and also won the Nobel Prize for his research.
It was space satellites that made large scale use of solar electrical energy for the first time. By 1980, the United States of America, produced a solar cell which provided an efficiency of nearly twenty percent, this efficiency was increased to around twenty four percent in the next two decades and currently there are a few companies that are manufacturing solar cells that offer efficiency levels of nearly twenty eight percent
The Working of Solar Panels
Pure silicon forms the basic element of all solar panels as its makes for an ideal platform that aids transmission of electrons. This material is used on the plates that form a solar panel. Solar panels are also created by combining silicon panels with other elements, with negative or positive charges.
The Silicon atoms are exposed to the bombardment of photons when negative plates of solar cells are faced towards the sunlight. Once all free electrons are drawn away from the plates, enough electricity is generated to power various electronic appliances that do not require too much electricity to power them.
Features and Types of Solar Panels
Basically there are three types of solar panels, namely mono-crystalline solar panels, polycrystalline solar panels, and amorphous solar panels. The life expectancy of solar panels depends on the type of solar panels selected by you; generally it’s around twenty years or so.
Solar panels do not require sustained maintenance for their upkeep although; if lead acid batteries are used then they must be checked every six months and topped up with distilled water if required. If you are looking for a solar panel for your needs and do not know what size to go for, then the best way would be to calculate your average consumption of electricity on a daily basis. This would give you a fair idea of what kind of solar panel to go for. In the long run, solar panels will reduce your electricity bill by a long way, and hence the option of using solar energy must be explored in a positive manner.
Showing posts with label solar panels. Show all posts
Showing posts with label solar panels. Show all posts
Wednesday, March 17, 2010
Why Use Solar Power. Some Great Reasons
Water runs dark, trees are dying and the air we breathe gets thicker and thinker by the moment. There are several solutions to these problems, but oddly, the source that got the whole thing going may actually be the answer to solving the poor choices made for the planet. Solar power got the entire process going and may be the solution to getting it back on track.
In its intentional use, solar power gave us heat and light. As evolution worked its magic solar power was not an alternative source of power, it was –the- source of power as it warmed the earth and moved the air. Now, our “modern” technology has evolved to a point where we can once again use solar power to warm and move our air. But why should we use solar power when the same planet that gave us the sun gave us the coal to accomplish the same task? There are many reasons, and most of them are of the kind that people can identify with; they are self serving and entirely hedonistic.
Solar leads to cost savings
All one has to do these days is open up an electric and heat bill to see how much it costs to heat and light your home. Solar power is a great way to just about eliminate the costs associated with lighting and heating your home. For those that are using solar powered heating and lighting equipment today there is little if any cost associated with heating and lighting their homes. Yes, there is an up-front cost to installing these units but pay back times through cost savings and tax credits are getting shorter and shorter due to better technology and awareness. These current users report that they actually make money from using solar power systems just by paying a little closer attention to how they use the power that they have. For the most part, they indicate that a 30 second glance at back-up batteries for piece of mind is all the extra time required to start saving money.
Money maker
Some may say that piece of mind doesn't go very far when it comes to a series of cloudy days. Batteries, they say, can run out or get low. From all reports, however, cloudy day issues, in a majority of the world’s climates, are not an issue. In fact, a majority of users find that they have an excess of electricity that ends up just going to waste. Or so most people- once - thought. Although the entire US is not quite there yet most sates require that utilities buy back excess power generated from those desiring to remain on the power grid. Although it may sound a bit odd, solar power users find that their electric meters actually run backward quite a bit of the time when solar power systems are in use. God forbid there were a few weeks of nothing but clouds and cold, but if there are the owner is free to use the power that they sold back to the utility. Past the home front, add a water wheel and a wind mill and you have a nice little income generator with the electric utility paying you.
Off the grid
There is a certain segment of the population that just does not want to be connected to the “grid”, as the power and information society calls it. For these people solar power is a great option. Solar units are fairly low cost and getting lower cost every day. They can also withstand a 1” hailstone traveling at 50mph. For survivalists or even for a farmer that needs to irrigate his crops in the middle of nowhere, solar is the way to go.
Develop a new technology
Man at his basic is a curious being. What if? Is always being thought about whether it’s just a casual thought during the day or figuring out how to get to Mars. Advancing technology is just who man is. Using solar may satisfy our current environmental issues but it also satisfies our intellectual needs. If solar power isn’t used it won’t advance and our need to know won’t be satisfied. Intellectually, solar is a great idea.
Leave the world a better place
Throughout time man has found a way to screw up the planet in one way or another. Most of the time, man has screwed up because of ignorance or with good intentions. Using solar, at the moment, appears to be one of those good intentions. It may end up being a bad thing 200 years down the road, but for now, it may be one of the only ways to leave the world a little better then when we got here.
In its intentional use, solar power gave us heat and light. As evolution worked its magic solar power was not an alternative source of power, it was –the- source of power as it warmed the earth and moved the air. Now, our “modern” technology has evolved to a point where we can once again use solar power to warm and move our air. But why should we use solar power when the same planet that gave us the sun gave us the coal to accomplish the same task? There are many reasons, and most of them are of the kind that people can identify with; they are self serving and entirely hedonistic.
Solar leads to cost savings
All one has to do these days is open up an electric and heat bill to see how much it costs to heat and light your home. Solar power is a great way to just about eliminate the costs associated with lighting and heating your home. For those that are using solar powered heating and lighting equipment today there is little if any cost associated with heating and lighting their homes. Yes, there is an up-front cost to installing these units but pay back times through cost savings and tax credits are getting shorter and shorter due to better technology and awareness. These current users report that they actually make money from using solar power systems just by paying a little closer attention to how they use the power that they have. For the most part, they indicate that a 30 second glance at back-up batteries for piece of mind is all the extra time required to start saving money.
Money maker
Some may say that piece of mind doesn't go very far when it comes to a series of cloudy days. Batteries, they say, can run out or get low. From all reports, however, cloudy day issues, in a majority of the world’s climates, are not an issue. In fact, a majority of users find that they have an excess of electricity that ends up just going to waste. Or so most people- once - thought. Although the entire US is not quite there yet most sates require that utilities buy back excess power generated from those desiring to remain on the power grid. Although it may sound a bit odd, solar power users find that their electric meters actually run backward quite a bit of the time when solar power systems are in use. God forbid there were a few weeks of nothing but clouds and cold, but if there are the owner is free to use the power that they sold back to the utility. Past the home front, add a water wheel and a wind mill and you have a nice little income generator with the electric utility paying you.
Off the grid
There is a certain segment of the population that just does not want to be connected to the “grid”, as the power and information society calls it. For these people solar power is a great option. Solar units are fairly low cost and getting lower cost every day. They can also withstand a 1” hailstone traveling at 50mph. For survivalists or even for a farmer that needs to irrigate his crops in the middle of nowhere, solar is the way to go.
Develop a new technology
Man at his basic is a curious being. What if? Is always being thought about whether it’s just a casual thought during the day or figuring out how to get to Mars. Advancing technology is just who man is. Using solar may satisfy our current environmental issues but it also satisfies our intellectual needs. If solar power isn’t used it won’t advance and our need to know won’t be satisfied. Intellectually, solar is a great idea.
Leave the world a better place
Throughout time man has found a way to screw up the planet in one way or another. Most of the time, man has screwed up because of ignorance or with good intentions. Using solar, at the moment, appears to be one of those good intentions. It may end up being a bad thing 200 years down the road, but for now, it may be one of the only ways to leave the world a little better then when we got here.
Subscribe to:
Posts (Atom)