Most solar panels that you purchase contain in the region of thirty six solar cells of various sizes and will influence the watt or amperage of the panels.  Panels are constructed on a sturdy backing board and the solar cells which are constructed from moncrystalline or polycrystalline cells are used to produce the panels.

Monocrystalline solar cells are manufactured from a very thin silicon sheet is around one millimetre thick and is brought into being from a single silicon crystal.  Monocrystalline panels are much more productive than their polychrystalline counterparts.  In polychrystalline cells, the crystals are multifaceted and are less effective.  They do however cost a fair deal less and are often used for domestic solar panels.

If you live in the northern hemisphere, then it is important to place your solar panels facing south and visa versa for those living in the southern hemisphere in order to take advantage of the maximum amount of sunlight.

When it comes to the calculation of electricity units, solar energy is measured n kilowatts with one kilowatt equalling one thousand watts.  While it may be true that one square meter of the earth surface has the potential to produce a thousand watts of electricity in a day, solar panels are only around 10-15 percent efficient and the amount of energy they produce is only relative to the quality of the panels themselves and the quality of direct sunlight, with clouds, rain and other inclement weather conditions playing an adverse role in the production of electricity.

Under the most stringent of conditions, even the very best solar panels are only around 40% efficient making it impossible to improve this with the present technology, but considering that the energy is both clean and renewable, the loss in efficiency is a small price to pay.

The photoelectric effect which was discovered by Albert Einstein is the primary reason that solar energy can be created and although pure crystalline silicon cannot conduct electricity well, it does allow for the electrons to move around freely and carry with them an electrical charge.  Other elements then need to be added to the pure silicon and this is done with the introduction of such elements as boron which produces a type of silicon that accepts electrons while phosphorus added to silicon enables it to supply electrons.

The acceptance of electrons and supplying of electrons are as a result of a p-type silicon and an n-type silicon respectively that are created with the additional elements.

Solar cells or photovoltaic cells as they are commonly called are made up of a p and n type layer with a conductive layer, a metal contact layer and a p-n junction.  When light hits the silicon layers the electrons and protons react and begin to move around within the different layers.  We all call this movement of electrons as electrical current and when they are channelled through the various contacts placed in the cells to the junction box, they will emerge from the panels as direct current which is used to charge a bank of batteries.  Once you feed the direct current into a converter, it is converted into alternating current or AC which is the electricity type used to power all the appliances in our homes.

Although this technology was once space age, it is now easily accessible to the average man.  Not only can you make use of solar energy for your home, but you now have the tools to manufacture your own solar panels making use of solar cells which are freely available in the marketplace.

The rise in the price of fossil fuels is cause for concern around the world and as many more countries that supply our needs find themselves in conflict this problem could well continue.  We all know that there are alternative energy sources, but what can we realistically do in order to supplement our energy supply right at home.

Solar Panels for Domestic Application

While solar panels are an excellent method of generating energy and hot water for your home, they are also somewhat less cost effective than we are led to believe.  This is particularly true if you are not fortunate enough to live in an area that is blessed with year round quality sunshine.  Most areas will only receive around five hours of direct sunlight per day and for those living further North, this number is at the very top end of what they can expect.

Although solar energy is not new, it is still extremely expensive due to the fact that the industry is moving forward very quickly, leaving domestic applications of this technology behind.  Fortunately, there is a spin off from the advancement which can be used to our benefit.

Acquiring Solar Panel Components

All the components that are required to build your own solar panels can quickly and very easily be sourced from various local hardware stores and the cost can be reduced even further will a little understanding of how solar cell technology works and where to find “broken cells” that will still produce a reasonable level of energy for the price of building them with cheap second hand cells.

Understanding how solar energy works is not complicated and there are incentives to incorporate this technology into your home by the government, so if you have some rudimentary diy skills, this project may be the ideal solution for you.

The use of solar panel as long been endorsed by experts in order to help our environment. However, it was only in the last 4 years when we realize and appreciate solar panel efficiency. It is not only a safe power source but it is also clean which means it does not give off any harmful elements that can harm the earth.

Even with the advantages we get from using solar panel, there are still those who prefer to use other methods like fossil fuels because it does not really stand out in the market. That is why there are various researches done to help improve the efficiency of solar panels.
Experts point out that the materials used play a very important role in creating solar panel so they continue to find other materials which can give off solar energy. Even if this is the case, solar panels in available in the market are superb.

If your solar panel efficiency is not enough, maybe you should look at other factors such as the location where you placed your panel. No matter how expensive your solar panel is if it does not get enough energy from the sun then you won’t have an efficient power supply. You need to ensure that your solar panel gets at least 8 hours of sun exposure. The best area where you can place it is one your roof but also see to it that there are no trees that can possibly prevent the exposure of your panels to direct sunlight.

Solar panels can be used for a variety of different money saving devices. We are all aware of the popular use of solar panels for electrical energy. The energy produced by these devices does vary depending on the amount of direct sunlight that they receive.

Over the last few years, their has been a marked increase in the productivity of solar panels and they are now being used to great effect even in colder climates.

Although solar panels made from photovoltaic cells to generate electricity is the most popular application, solar panels are also been used in other applications such as:-

1. Passive solar to circulate air around the home and

2. Heating water systems.

Solar panels that are used to heat up water work in very much the same way as photovoltaic cells with the exception that they utilize pipes running through the panels in place of the photovoltaic cells. The sun then heats up the pipes which heats up the water inside the pipes.

In very sunny locations, the solar water system can be used as the primary water heating system with a backup for evening and cloudy day hot water requirements. Most people utilizing these systems confirm that the water remains hot many hours into the night and will make a marginal increase even on cloudy days.

There are three different hot water heating systems:-

1. Evacuated tube collectors

2. Glazed flat plate collectors

3. Unglazed collectors.
To find the right solar heating system for you home, you will want to do research into the different systems. There are also some great instruction manuals available online that will show you step by step how to construct and integrate these systems in to your home.

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Building solar panels has become very popular and requires just a relative degree of diy experience.  Looking at some of the main reasons that people have chosen to invest in homemade solar panels, you will not amongst them, the radical decrease in cost as well as the ease at which the components are now available.

Solar panels are also gaining popularity as they can be used for heating water as well as generating electricity.  No matter what your situation, if you have a little welding experience and can hit a nail on the head, then you will be able to produce good quality solar panels.

So what are the biggest advantages of going solar?

• They are cheap to make – solar panels are now much cheaper to build.  With an investment of no more than $200 you can build an 80watt solar panel.

• They are easy to make – the step by step instruction manuals are so easy to follow and many include video tutorials too.

• They are easy to maintain – having built them yourself, you will be able to maintain them and not have to rely on outside and often expensive maintenance contracts.

• You can build as many as you need – as your power demands change, you can build more solar panels.  You no longer have to sacrifice your heaters in the winter or your air conditioning in the summer.

• You can build them for family and friends and earn a little extra – with so many people searching online for solar panels, you will have an endless supply of people wanting to buy your solar panels.

• You can build enough of them to have the power company pay you – Although this is often touted as a fantastic reason, you will have to build quite a substantial number of solar panels before your power company is paying you, but it is possible (as long as you have enough roof space)

In order to produce enough energy to support a family of four in a moderate size house, you will need to consider at least six solar panels for your home.  If you are prepared to consider other innovative and effective power generators that could work in conjunction with your solar panels, then you could save even more money.

Most of the solar panel diy instruction books come with free instruction manuals for wind turbines which means that you could generate even more power for your home with very little additional investment.  On average, wind turbines will cost no more than $100 for a standard size home turbine.

One more advantage of investing in the online solar panel instruction manual downloads is that they cater for the most inexperienced diy enthusiast.  They also include a complete list of all the components that you will need to complete the project making the entire process stress free.

For those looking for a more challenging project, you might want to consider purchasing ‘broken cells’ online for a fraction of the price and building your panels with these ‘broken cells’.  This will dramatically reduce your costs even further.