Cheap Solar Panels - Types of Solar Panels

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Solar panels are classified into three primary types: monocrystalline, polycrystalline and amorphous. Each type has its own benefits and drawbacks, which makes research essential before purchasing a solar panel for your home or business. The U.S. Department of Energy states that solar panels are given an efficiency rating based on the percentage of energy the panel is able to effectively capture and convert into usable electricity. 

Solar panels transform solar energy into current electricity, which if the prime purpose of any solar energy device. As science and technology forge ahead, there were several types of solar panels invented and distributed within energy industry. Moreover, modern advancements allow production and usage of solar energy not only on large enterprises, but in households. Solar energy becomes more and more available; one of the recent trends is embedding solar panels into small gadgets and devices. 

Therefore, the variety of solar panels is likely to encourage major improvements in everyday livelihood. 

First of all, solar panels might be classified according to their capacity. Three main types might be recognized: 
  
Universal panels, which might be used in field environments. Such panels are usually appreciated by travelers, who are eager to deal with active and ecotourism.

1. Small panels, which are embedded in small devices (such mobile phones, electronics, etc).



Cheap Solar Panels

2. Solar cell panel, which might be usually seen on solar energy plants.

In addition, the whole range of solar panels might be divided in three groups according their structure. In this context, there are photovoltaic cells, solar power stations and solar collectors. Each type might compete in popularity and distribution, which is why they are worth considering in details.

Photoelectric converter may be defined as a device processing power via the photovoltaic effect. Solar panel is formed, when several photoelectric converters are united.  Photoconductivity is a main factor, which defines optical properties, and, therefore, the effectiveness of the panel. This phenomenon is preconditioned by the internal photoelectric effect, which occurs while irradiating the semiconductor with sunlight. Nowadays the United States are world leader in usage of photoelectric converters, which hold 405 share on the global market. A lot of companies also deal with producing materials, required for photoelectric converters. They are HEMLOCK and USA MEMC, AsiMi, SGSil (the Unied States), Wacker (Germany), Tokuyama Soda, Mitsubishi MaterialPoly Si, Sumitomo Titanium (Japan) and Italy MEMC (Italy).

Solar power plant is a solar installation, which uses concentrated solar energy to drive other various machines: steam and gas turbines, thermoelectric cells, etc. Surprisingly, solar plants are used not only to generate energy, but facilitate other industries as well. Among other specific purposes it is appropriate to admit heating and desalination of sea water. The main point of plants structure is lenses, which help to concentrate energy. In particular, nowadays they are replaced with large mirrors due to big weight and high cost of the first ones. Mirrors are usually made of conventional glass or polished aluminum. Solar power plants are the prerogative of countries located in tropical areas (Montalto di Castro PV Power Plant and San Bellino PV Power Plant in Italy, Lopburi PV Power Plant in Thailand). However, the biggest one is located in Ukraine - Perovo Solar Power Station.

Solar collecting systems are low-temperature heating units, which are used for autonomous hot water supply both for residential and industrial premises.Solar collectors also might be divided into three types:  flat (represented with element-absorber, which absorbs solar radiation), vacuum (laminated glass coating) and collector-concentrators (mirror surface).

CONCENTRATED SOLAR

Concentrated Solar uses reflectors to concentrate the sun’s rays onto a collector. The collector either stores the heat energy or uses a heat engine to convert it into mechanical energy.

The range of applications of this technology is enormous, and varies from the small solar cookers, which are becoming popular in developing countries, to vast fields of utility-scale mirrors, such as those employed by Solar Tres, a concentrated solar power (CSP) project slated for construction in Spain. This installation will focus hundreds of times the sun’s energy on a single collector tower, producing 5 megawatts of electricity using liquid sodium as a heat exchanger. Additionally, it will have the fringe benefit of being one of the very few renewable energy technologies to come out of a James Bond Movie. Take that, Biomass!

Make power at home with solar and wind energy to eliminate your power bill. Get our complete guide at www.earth4energy.com

Cheap Homemade Solar Panel

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Cheap Solar Panels

The present economic scenario and the ever-shrinking state of the global oil reserves is not good news for everyone. But on a positive note it makes us investigate for alternative energy sources that is become the solution of cutting down present and the future energy consumption, particularly in terms of fossil fuel usage like oil. For example, it has become more and more economical to build home made solar energy system. Building the home made solar panels that utilize deep cell storage batteries produce the electricity upon consumer demand and reduce the their individual dependence on the country’s energy grid.

Who is there in the world who does not wish to have the energy bills get reduced by 80% or more? Many of us shall want to take advantage of such a great deal. If such is the demand then follow the guide Earth4Energy that offers lot of fantastic home made solar solutions on their site, which can be built easily, for the low cost of less than $200.

The Features of the guide are -

• Full and detailed instructions given which can be easily understood by a layman or the unskilled for building a home made solar panel.
• Other details on how to obtain the components available in the neighborhood material store for preparing the home made solar system.
• Few Tips on how to construct the alternative energy generators that is not readily available anywhere else.
• One time investment - and life long updates to the manual and video series, at no additional cost.
• Detailed instructions explained by videos

Think about it! Here you are with a home made solar system, generating power that will be stored in deep cell batteries for future consumption. And all of this costs just pennies on the dollar! At www.Earth4Energy.com, you will have subscribe to the home made solar DIY kit and then begin to experience of making the energy generating kit at home. The DIY instructional manual and videos are easy to understand so that even a beginner will be able to understand.

They have a history of excited customers mentioning positive reviews about the many money saving quotes. Most of them who have built the devices can't believe how easy it was. Additionally, these testimonials or feedbacks state that they have actually gained and also saved 100% of their electric bill and that they could use the extra money to pay gasoline to their car!

Make power at home with solar and wind energy to eliminate your power bill. Get our complete guide at www.earth4energy.com

Cheap Solar Panels - Choosing the Right Solar Installer

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Cheap Solar Panels

A solar power system is one of the biggest investments a homeowner will make, so it's important to make sure that everything is installed properly and built to last.  Components vary quite a bit in terms of electrical output, form factor and weight, but most panels will come with a 20-25 year warranty, making solar a long term investment, dependent on a strong foundation of a quality install.

The first tendency when looking for an installer will either be to go for the cheapest option or to assume that the highest priced option is the best and go for that.  The better choice will most likely be somewhere in the middle.  A good solar installer will manage the entire supply line, meaning they'll source all of the components for you and take care of everything from start to finish.  This typically means that they'll get wholesale prices on the materials and pass some savings on to you.  The danger in going with the cheapest installer is that they may be providing a cheaper service by using lower quality components.  Remember that although a solar panel can last from 25-50 years, critical components like power inverters are not as resilient, so making sure they're top quality is the best way to ensure your entire system functions for decades.

Finding the right installer will be much like finding a home builder or a general contractor for an addition to your home.  There are so many elements involved in purchasing, planning and installing a solar power system, which a good installer will need to know a bit about everything.  The installer will be handling the purchase of the equipment, any rebates and programs that you qualify for as well as the actual installation, so this will go beyond the scope of a typical handyman.  The better business bureau or community review websites like yelp.com are great resources for weeding out the average from the excellent.

Finally, make sure that whomever you chose to install your system is someone you trust and are comfortable with.  There is a tendency in many service industries to push higher priced products or additional services that may not be necessary in order to generate more revenue.  Keep in mind that you're the customer and you need to be confident and comfortable with every aspect of the job before signing the contract.  If at any point you feel uncomfortable or pressured, consider working with another installer.  The installer will come and go once the job is complete, but you'll live with the solar power system for decades, so making sure you get exactly what you need is the most important part of the whole process.

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Cheap Solar Panels - US Solar Energy Industry

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Cheap Solar Panels

Many investors will no doubt look to U.S. solar industry, especially after the encouraging results in 2009, which showed that U.S. solar industry, even despite the recession, still managed to come up with more than respectable 37% growth. This equals to around 17,000 new jobs in U.S. solar industry, and this year is expected to be even better, with many big time players in solar industry already describing this year as the "breakout year".

The main contributor behind this growth were federal and state incentives coupled with significant drop in solar panel prices (30-40% lower prices). Without these incentives solar industry would really be helpless on domestic energy market because it still lacks cost-competitiveness with fossil fuels (for instance solar energy is still in average six times more expensive than the coal, which is the cheapest fossil fuel).

But not everything is rosy, and the main problem of U.S. solar industry still remains manufacturing solar energy technologies. Although the official data will show that domestic manufacturing achieved a 7% growth last year, this is nowhere near enough to compete with China, that convincingly leads the way as the world's largest solar panel manufacturer.

Not only that U.S. is far behind China but is also behind Europe, and even Japan, as U.S. is current share in manufacturing equals only to 7% of the global market. This is the segment where U.S. solar industry will have to put the most efforts to compete on global level. This was likely the biggest reason why number of US businesses turning to solar power was 2% down in 2009 when compared to 2008, with 207MW of new installations compared to 211MW in 2008.

Still, overall looking, the future U.S. solar energy prospect looks very good, and the demand for solar power is growing at very high rate. This is mostly because there was significant drop in solar panel prices, and if we are to believe the latest predictions the solar panels prices will continue to fall, thus becoming acceptable energy option for much more people.

If we look at the data by U.S states then we can see that California continues its dominance in solar power installations by adding 220MW of new solar power capacity in 2009. California still accounts for around two thirds of all American solar generating capacity 1,102MW of total output but is good to see that solar power is also becoming popular clean energy option in other states like New Jersey, Arizona, Florida and Colorado.

U.S. solar power sector should definitely look forward to very bright future, but along the way U.S. solar industry still needs to solve some rather important issues, mostly how to better compete with China in manufacturing solar power technologies.

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Solar Energy – How it Works?

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Many people today are trying to save money on their energy bills and one of the more popular ways is through using solar energy. How does solar energy work? 

Energy from the sun in the form of heat and light is abundantly available to everyone on Earth, even in places that do not get a lot of a sun. Did you know that the Earth receives more energy from the sun in an hour than our entire population can use in an entire year? With all that clean, renewable energy that is coming from the sun every day, it is worthwhile to figure out a way to use it. 

Active Solar

There are two different types of solar energy that can be used to power our homes and daily lives. One is active solar energy, which works through solar panels, which are set up with the use of photovoltaic cells. These cells are linked together in order to produce electricity.

How much electrical output they produce depends on a few factors. One of them is how many cells are linked together in a panel, and how many panels are being used. 

The energy from the sun comes in the form of direct current, DC, instead of the alternating current, AC that is used in your home. For this reason you will need a way to convert the energy. The simplest solution is to buy a power inverter, which convert the sun's energy into usable AC electricity. Another option is to convert your household's electrical needs to DC power, although this is in most cases impractical especially in existing homes. 

Thermal Solar Energy

There is another form of active solar power that uses thermal energy from the sun to heat the water in your home. Devices that circulate and pump the water help to keep it warm. Depending on where you live, solar power can heat water up to sixty degrees or more. While this may not be ideal for taking a shower, it can be effective for dish washing or even doing your laundry. Solar power for heating water can cut your water heating bills substantially, and can be used in combination with solar electricity. 

Passive Solar

Passive solar energy uses the power of the sun without the use of any mechanical devices. When you go out on a sunny day, you feel the warm sun's rays, and this principle is really the same for heating your home. A passive solar home has south facing windows and uses building materials that absorb the sun's rays and then dissipates the heat into your home efficiently. Passive solar can also be used to heat water in our home. 

Using Residential Solar Energy

Solar electricity is a great alternative to powering your home with standard power grids. It is already being used in a variety of residential, as well as business applications world wide. There are many different ways you can get a home solar power system, including DIY solar power kits that come complete with diagrams and materials you need to build your own solar power systems for very little money. 

You can also find solar energy professionals that will come to your home, assess your needs, and do all the work for you. There are even ways that you can get used solar panels for free, or through solar power grants or renewable energy programs in your area. 

You can run your home on solar energy even when there is little or no sun. Using batteries to store excess energy, you can draw from them during the days when there is simply not enough sun to be effective. 

Many Options for Using Solar Energy

Some people also use solar energy in combination with other alternative power sources, like wind turbines, or even magnetic generators. Not only can it save you a great deal of money on your electric bill, in some cases you can actually get completely off the grid, and not even have a bill at all. 

New technologies are being developed to help make solar energy more affordable and available to more people. Even if you're not able to convert your entire home to solar power, you can now use solar powered battery chargers, solar yard lights, solar appliances and more. 

Each small thing that you do to save energy will also help our environment and help to make our beautiful Earth a better place for our children and grandchildren.

Cheap Solar Panels - Solar Cars

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Cheap Solar Panels

Most of us are aware of solar power these days. A huge number of gadgets feature solar panels these days while solar photovoltaic panels adorn many a rooftop across the world. But what about solar-powered cars? Are they a reality or the stuff of science fiction? According to specialist website called Solarpoweredcars.net, solar powered cars have been around since the 1970s while the first completely powered solar car was developed in 1984 by Greg Johanson and Joel Davidson.

The model was called Sunrunner and was totally powered by solar energy. It featured a 1.2kW solar array, a 1hp wheel motor and a MPPT controller. It had no batteries. The Sunrunner entered the Guinness Book of World Records when it reached a top speed of 41 mph. Greg did the piloting during the feat. These days Greg runs a solar energy company called Solar Electrical Systems, which installs PV systems on residential and commercial buildings.

But how can solar energy power cars? Through photovoltaic (PV) cells, which convert sunlight into electricity. Together they form panels that get exposure to the sun, which in a car could be the whole surface of the car, but mainly the rooftop. Solar power makes the car move and is stored in a battery to that it can work at night and on cloudy days. 

At this stage solar powered cars are an expensive proposition as cells cost anywhere between $10 and $400, depending on their level of efficiency. Besides, most models proposed so far only carry one person. But as a concept, it is an absolute wonder. Can you imagine driving a vehicle that relies solely on the energy of the sun? You can’t cleaner than that. One may say that electric cars fed with solar electricity are, in a way, solar powered cars. In this case, it is already happening. But cars equipped with solar panels to transform sunlight into fuel for now remains a dream, albeit a beautiful one.

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