I need a good and reliable comparison between manufacturers of photovoltaic solar panel manufactures. German, US, Japan, China… for a new project i make.
Thanks, Ofir

Budget conscious people who may be interested in solar power producing panels may now have them without fear of paying thousands and thousands of dollars. The said panels, after, can cost up to $40,000. Nowadays, you can resort to homemade solar panels that produce electricity through low temperature as well as direct sunlight, and do not require a big amount of money.

Out in the market today are numerous solar panel kits that come with minimal costs yet can be const effective. Aside from buying kits, there are also other methods shared by experts that enable people to build their own panels. By having your own solar panels, you get to enjoy lower electricity charges because of the fact that you are able to provide power of your own.

There are two types of panels that provide solar energy: one is a panel that brings about energy through heat, while the other gives off electrical energy. The first one is mainly used for water heating purposes e.g. for cooking, in hot springs, etc. Heating is made possible when the sun’s radiation is converted into heat energy. The second solar panel type, on the other hand, works by transforming light into the electricity we need in our household. The said panel is also known as a photovoltaic panel which is more often than not placed on the roof. Remember this: the more electrical energy you need, the more panels that you may add.

An effective panel is comprised of a group of solar cells that each emits electricity. Proper electricity emission from the solar cells requires facing the rays of the sun directly. When panels do not face the sun directly, electricity may not be produced.

Building panels producing solar energy is not really that difficult. For one, the panel kits being sold more often than not contain complete materials needed to build solar panels. A solar power producing panel may be made for as long as there are materials like an iron used for soldering, solar cells, the so called tabbing, and the flux. The kits also have step by step instructions on how a person can construct his own panel.

Putting up solar panels at home usually does not require you to hire a professional. Just by simply applying the detailed steps found in the kit, you will be able to build your own panels. In the event that you still have some questions, or if there are still instructions that are not clear, a good idea is to search over the Web and join forums that focus on do-it-yourself solar panels. .

If you are looking for an effective method of saving money, why not try homemade solar panels? Through them, you get to have electricity at a cheaper cost. They are also environment-friendly, which means that those panels do not only benefit people, but also Mother Earth. Lower expenses, eco-friendly electricity, and a reliable source of energy—all these are found in solar panels, surely the best way to survive in a crisis-filled planet.

Building solar panels is quite simple and it does not require you to hold a degree in electronics. Most people are awed when they hear of such things like constructing a photovoltaic panel and are unsure if they shall be able to construct one for their own home. The truth is that these panels are simple to set up and require limited knowledge of electronics from your end. If you know how to fix screws and have knowledge of using a soldering iron, you can easily construct and install a photovoltaic panel. There are many guides available on the net and following them you can easily build and set up your own photovoltaic panels.

The main reason why one is suggested to build their own photovoltaic panels are the costs of the ready to use ones. The ones that are available assembled and ready for immediate installation costs a good sum of money and it will take the user a number of years to recover back that cost. However, if they build their own photovoltaic panels, it works out to be quite economical and affordable. Before you set about assembling your own photovoltaic panels, you need to have a bit of clear space and a reliable manual. Ensure that the manual is simple and that you do not have any problems following the instructions on the same before proceeding ahead.

There are a number of guides that are too technical and are not comprehensible by everyone. There are some online guides that tell you about where you can obtain solar panels for free, but it is recommended that you do not go in for them. Primarily you will need something to affix the photovoltaic cells on and the preferred choice is plywood since it lasts for a long time in harsh weather conditions and is durable too. Some people prefer OSB materials, but they should be warned that OSB absorbs water and will spoil your project during the monsoon season. Before you start building your dream photovoltaic solar panels, keep a soldering iron and solder handy.

They will be required to solder one small panel to the other. You will also need to source some solar panels. Search the net for various sites that sell these panels and opt in for one that offers you both quality and reasonable price. Assembling the panels is simple a task of soldering the positive and negative wires together to make a big and completed panel. Once this task is over you can start mounting the panel and running the wires. Now connect the wires coming out from your photovoltaic panels and affix them to the battery. If your panel has sufficient power, you can connect them directly for running your dryer and washer. The total output wattage depends upon the number of panels you have hooked together. As you see, building solar panels is quite easy and is also rewarding. Be prepared for a pleasant surprise when you receive your next power bill.

What is a Solar Panel?

It can be defined as a contrivance/device that has capabilities to convert photons of light (a photon is an indivisible unit of electromagnetic radiation) emitted by the Sun and convert it into usable electric energy. It is also known as a “Photovoltaic” panel or module, (a module, in scientific terms, is referred to as “a set of parts or units that can be utilized to develop a more complex structure”). The basis of this energy is the Sun. Sun is an immense globe of gas that is seamlessly emitting out energy in the form of Heat and Light. Solar energy collectors utilize the sun’s energy, which is made up of particles of energy known as photons, and convert it into electrical energy inside a photovoltaic cell or solar cell, which can be used to energize electrical loads.

How does a Solar Panel work?

A semi-conductor, (substances that conduct electricity only under certain conditions) mainly Silicon is used to absorb the photon from the sun’s rays and convert it into electricity. How? At the basic level, two thin sheets of silicon are used, one is “doped” (it is an addition of other elements (impurities) to a semi conductor so as to conduct electricity smoothly) with ‘phosphorous’ and arsenic (5 electrons per atom), which introduces a free electron, to the semi conductor. This is known as an N-type (Negative-Type) semi conductor. Another silicon sheet doped with small amounts of boron (three electrons per atom) leaves a missing electron in the semi conductor. This missing electron leaves a hole making the semi conductor positive and acts as a conductor. This is P-type (Positive-Type) semi conductor.

The principle is simple. When these “doped” thin sheets of silicon are sandwiched together, an electric field is created. If we establish a conduction pathway on the electric field so created by placing a contact grid on the top and bottom of N-Type and P-Type silicon sheets, the electric activity is stepped-up between the “doped” silicon sheets causing a flow of electricity through the pathway.

This is a most rudimentary type of Photovoltaic cell capable of generating 0.75 to 1.5 watts of electricity. To light a small home, one needs a bank or array of cells depending upon the expected usage.

Benefits of Solar Panels:

(1)   You are not dependent on Electric Utility Grid.

(2)   This spells huge financial savings.

(3)   You can live in remote, eco-friendly neighborhoods with Solar Panels providing electricity very cheaply.

(4)   Solar power is renewable energy and is very clean and eco-friendly. Functionally they are superior.

(5)   Maintenance costs are extremely low.

(6)   Solar Panels are very compact, more especially those meant for homes. Every integral part and every accessory of the unit is so designed as to make assembling the whole a very interesting and at the same time extremely easy for the D.I.Y segment. Market prices of a whole unit would be prohibitive. Besides, the price of the unit, the installation expenses by technicians would be a very costly affair. If you purchase the parts and assemble it yourselves, the cost becomes negligible. FOR SOLAR PANELS, D.I.Y. is the way! The easy way!

(7)   Since, solar power is working, NOT ON AC (alternating current) but on DC (direct current), principle, your computers, home appliances which work on DC need not use adapters, avoiding conversion leakage which is common.

(8)   No hassles in paying Electricity Bills. In fact there is no bill.

(9)   The critical factor is the duration and effectiveness of sun in your area.

Other uses of Solar Panel:

Solar energy can be transformed into Heat energy.

a)      Heating of Homes in winter at a very reasonable rate.

b)      Heating water in bathrooms and swimming pools. Compared to AC system, the Solar Panels will provide heating to such appliances very cheaply.

c)      Washing machines and Dishwashers also can be connected to the Solar Panels.

Tax Benefits:

v      On 4th February 2008, The Energy Policy Act of 2005 was allowed to cover almost all homes in the US. This means you can claim tax credits if you have constructed a new house using Solar Panels. The Emergency Economic Stabilization Act of 2008 bestows tax credits for people planning improvements in 2009. The Energy Policy Act of 2005 placed a $2000 credit cap on certain types of Solar Panels. The Emergency Economic Stabilization Act of 2008 eased this cap on Solar Panels. This means if you buy a Solar Grid Panel for $20,000 your tax credit will be much more than the $2000 credit allowed previously.

v      The states of New York, Washington, Florida, Minnesota and Vermont do not charge any Sales Tax on Solar Panels and their parts.

v      The State of California permits you to deduct any interest you may have been paying on energy loans in your tax returns.

v      The states of Virginia and Texas won’t add the value of Solar Panels in your property value. This means that there is no Property Tax on your new Solar Panels.

v      The States of South Carolina, Arizona and New York allow an extra deduction of 25% tax credit on the value of the solar system operating in your home.

v      The State of New Mexico, the most friendly renewable energy loving state allows its residents a $9000 tax credit, if the resident installs a Solar Panel system.

Renewable energy is the future of the globe. It is inexhaustible as long as the sun lives, which is estimated to be many more billion years! No eco-debilitating gases, no global warming, no hole in the ozone layer, no increase in El Nino effect. The existence of water vapor and carbon-di-oxide, which keeps the heat coming from sun in equilibrium, is altered by excessive release of carbon-di-oxide. This is known as Greenhouse Effect. By using renewable energy whole-heartedly, and on a global scale, our eco-system will regain its balance obviating the perils and upheavals waiting to happen.

D.I.Y. System:

It is very simple. What you need is the right mind-set. Henry Ford said: “If you think you can, or if you think you can’t, you are right….” If you think you can, D.I.Y. system makes it even simpler for you to achieve.

Great things are achieved not by knowing everything; in fact great things are achieved only by putting your heart into it.

Photovoltaic solar panel resistance to simulated hail