Energy from the Sun
Solar power system is the process of using the light from sun and turning it into an energy source.
It has become a reliable alternative to regular power sources in remote areas. It has even been used in outer space. Solar power system is used in homes, lighting, architectural projects, and cooking. It has become even more popular as the cost of fossil fuel continues to rise. Solar panels are designed to collect the power from the sun.
Once solar energy is collected by the solar panels it has to be converted into energy. This can be done by a process called solar thermal application. It involves using the energy from the sun to directly heat air or liquids. The process of photoelectric application involves the use of photovoltaic cells to change the energy into electricity.
Solar power poses no harm to the environment. However, other threats to the environment may affect the ability to use solar power system in the future. Global dimming is the result of pollution. It allows less sunlight to reach the surface of the Earth. A recent concern is global dimming, an effect of pollution that is allowing less sunlight to reach the Earth’s surface. Global dimming is caused by pollution particles and global warming.
The Solar Electric Power Association is an organization of electric utility companies and the solar industry. They joined together to find solutions to meet our energy needs. SEPA is a network of more than one hundred companies. Fifty are utility companies, twenty five are solar companies, and the rest are various types of businesses. They share experiences, knowledge,
and information about solar programs, They also discuss policies and technology relating to their field.
Is solar energy right for you? There are advantages to using this as a safe alternative to fossil fuel. Solar energy is free.
It can be used in areas where electricity cant be set up easily. The sun is not a resource that is going to be depleted.
Disadvantages are that it doesnt work at night. The cost of creating solar power stations to store such energy is very expensive. In some area of the world, solar energy just isnt an option because the climate does not receive enough sun light.

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Solar energy is all around us, but most people dont notice it. For instance, the power source for many emergency phones on freeways is powered by it. This brings us the subject of solar post lights.

Solar Power for Post Lighting

Solar energy started to come into popularity in the 1970s, when technology advances combined with massive oil price increases to make solar a popular alternative energy source. Back then, the world was just starting to become more aware about the risks of using so many non-renewable resources, and people wanted to decrease their dependence on fossil fuels. Now, solar power is being used by many different people all across the world, both in big and small ways. One of the small, but still important ways it is being used is in solar post lights.

Often, people want to light their driveways or backyards. Aside from running expensive extension cords to lamps, using battery after battery, or running lines in underground pipes, there really werent many choices to power their lamps. Now, solar post lights are regularly used by those who want the convenience of not having to change batteries, and those who want to save money on their electric bill.

Solar post lights work by using very small solar panels, which are attached to an energy collector. These solar panels stay out in the sun all day, attached to your post, and they soak up all of the suns solar energy. The energy collector in many of the solar post lights is a NiCad rechargeable battery, most of which can go up to 1000 charges! That is about three years. The light that is powered by the battery is an LED light, which takes very little power but emits a bright light. LEDs can last up to 25 years, making solar post lights a very economical investment. These lights will emit their soft glow for many hours during the night, depending on the amount of solar energy they received during the day.

Other advantages to solar lights are that there are no wires needed, so installation is very easy. Also, you can often buy the lights individually, so there is no need to buy a large package of the lights if you only need a few to illuminate your way. Each light runs independent of the others, so if one light malfunctions, the rest will still be there and glowing.

Whether you choose to buy a few or a lot of the solar post lights, they are still the most economical and ecology minded choice for your driveway and fence lighting needs. With a long lifespan and easy installation, these lamps are the perfect thing to shine through the dark of your front yard.

You’ve probably heard a lot about solar energy and how efficient it is. Moreover, over the last few years, there have been several moves to see how effectively we can use solar power in an attempt to alleviate the energy crisis that the world faces. So, how does using solar energy fit into the bigger picture of protecting our environment? The point is that even small changes in the way we do things go a long way in terms of saving our environment.

Solar energy is a renewable energy source
The sun offers us a great source of renewable energy; it’s been around for over four billion years and is likely to stay around for another five billion years, during its life it will supply us with a steady stream of energy. So, apart from the obvious fact of solar energy is in abundance, people who are environmentally conscious find that using solar energy is an excellent way to help protect the environment.
But what makes solar energy an attractive option is the fact that unlike polluting fossil fuels, its availability is not governed by the oil industry, an industry that is riddled with capitalistic individuals, and influenced heavily by several geographic and political factors that invariably affect the supply.
Solar Energy on the other hand is a clean environmentally friendly energy resource and a very viable alternative to existing fossil fuels that pollute our lands, water and air, threaten our health, and contribute substantially to global warming.

Solar energy transformed into thermal (or heat) energy can be used to:
* Cook food Using Solar Cookers
* Heat water in Houses, Office Buildings, or Swimming Pools.
* Heat closed spaces a Greenhouse, a House or even other Buildings.

Solar energy can also be converted to electricity by using:
* Photovoltaic devices or “solar cells” that transforms sunlight into electricity. These systems are often used in areas with no regular electricity supply. Some common devices that are sometimes powered by these solar cells include, street lights, road signs and some gadgets like watches and even calculators.
* Solar Power Plants are electricity generating plants that use thermal energy obtained from the suns radiation to super heat liquids that in turn become steam and rotate the turbines of a generator to generate electricity.

How can solar power rescue the environment?
For starters, switching over to solar power would help cut back our dependence on organic fuels. This in itself is a huge saving, reduced hydrocarbons and emissions in the air, mean fresh cleaner air. Some ripple down effects would be, controlling the global warming, less acid rain, no smog the list can go on and on, however, let me elaborate some of the better know environmental benefits.
Decrease air pollution

The most commonly obvious benefit is the fact that by using solar energy we are able to reduce the levels of pollution. As we reduce the amount of fossil fuels being burnt and switch over instead to solar power from our needs there is a corresponding decrease in the amount of pollution produced. Solar electrification in some rural areas also decreases the dependence of the electricity grid and generators that run on petrol or diesel.

Offsets greenhouse gases
Solar Cell (PV systems) generates electricity with absolutely no carbon dioxide (CO2) emission. This in turn plays a significant step in reducing the overall greenhouse effect that we face. Apparently studies show that approximately six tons of carbon emissions are offset through the use of a single Solar cell over a period of twenty five years.
Conserve energy

The world over, and especially the third world countries have begun to embrace the conservation and use of solar electricity through several conservations programs to help conserve power for urban areas, city lighting as well as commercial and industrial needs. While solar plants and other forms of decentralised solar generated energy is used to serve the basic power consumption needs in the majority of the developing areas.

Reduces discarding dry cell batteries
People in several countries around the world rely heavily on the use of small dry-cell batteries for various gadgets, like flashlights and radios. These batteries are primarily composed of lead acid and sometimes other materials that can be toxic to us. When the battery is improperly disposed off, they start leaking; toxic chemical contents seep into the surroundings and contaminate the soil, water or air around it. By switching over to the use of solar energy the dependence on dry cells batteries reduces drastically and consequently all issues associated with its disposal.

Low cost energy alternative
Using solar energy at home substantially reduces the need for dependence on electricity or gas. Solar panels placed on your roof top collect the solar energy and store them away in batteries for later use. This power can be used to power up lights around the house in the evenings or when it is dark. Solar thermal converts can be used to heat water that or even your home again offering substantial savings on those fronts. Solar cooking ovens could be used during the day for baking and cooking meals.

The use of “Solar Energy”, a fresh, clean, free and abundant source of renewable energy will over the course of time reduce our dependence on other sources of energy that arent as helpful to our environment. If you want to make a difference to the world you live in, this is a wonderful place to start.

The last example of this specific phenomenon was apparent was in the early 70’s, when there was a crude oil trade embargo and hence, no gasoline. Substitute energies began to pop up here and there with many people jumping on the band wagon. But, gasoline soon returned in plentiful supplies and unconventional energy sources fell beneath the average consumers radar screen again. Now, in 2009, the common consumer is seeing petrol prices move higher and found a realization that global warming will be affecting finances soon. Substitute energy is back in the sentiments of the ordinary consumer and, maybe, this time for good.

Where did solar go?

Solar power for the home was a big seller during the energy crisis of the 70’s. Many houses found tri-pods of solar panels on their roofs gathering what power they could. These units were found mostly in environmentally sensitive Arizona, but soon they were found across the World. Unfortunately, the solar power cell of the 70’s just wasn’t all that cost-effective and cost quite a bit to put in and maintain. As fossil fuel returned to the marketplace there was diminutive need for solar cells in a time of flagrant consumption. But the idea of solar energy was a good one and many trailblazers understood that it was a good idea that had yet to find its time. Solar panels never went away; they just slid back into the laboratory to await solar panel 2.0.

Solar is back and ready

Today’s solar panel is not your father’s solar panel. Depending upon which type of energy you care to generate, electricity or hot water, todays solar panel has come a very long way in the form of photovoltaic’s and will go further still. These cells, when combined into panel form, turn the suns rays (so-to-speak) right into power ready for use. They have also become exceedingly efficient, more environmentally sound and less expensive. Todays solar panel will sit almost anywhere and is quickly finding itself being turned into a panel the thickness of a nano particle. Solar power technology is running at extremely fast pace and driving costs down to an affordable level.

Who’s using the panels?

As mentioned, it takes a change in the purse strings to see a marked change in a consumers behavior. With a technology and paradigm shift on the order of solar panels it requires a solid leap forward in panel efficiency, costs of panels , associated elements and an increase in existing costs of fuel. When these factors reach critical mass solar panels start to show up, not at the consumer level, but at the corporate and industrial level. This is simply because business moves its money where the costs-over time-are less. This is just good business. Solar panels are now, as in this past two years, become more cost effective for industry to use then to not use them over time.

Why solar panels now?

Solar panels are now being used primarily because fuel costs are just too high to ignore in favor of a new technology that is worth checking out. Companies have available empty roof space and the choice of trying something on a larger scale to see if it works versus continuing to pay higher fuel bills and environmental costs. The whole concept is extremely self serving. There is no environmental consideration involved. If the company doesnt use solar panels they have to pay fuel costs and air clean-up expenses along with variable fuel charges. They try out the solar panels and see if they work now. If they do, the company can; commit to a full solar panel program with even more efficient solar panels, significantly reduce fuel costs and almost eliminate air cleaning needs along the way. There is little environmental about it. Its just good business. After industry gets rolling, solar panel costs will drop like a stone and the consumer will jump on board becauseit’s just good business.

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 its 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.