Photovoltaic (PV) solar panels use solar cells to convert light from the sun directly into electricity. At Innovative Solar Solutions, we carry and stock most of the major brands, including Sharp Solar, Kyocera Solar, BP Solar, Evergreen Solar, SolarWorld, Kaneka, Uni-Solar, Suntech , Sanyo, Day4 and OEM Solar modules.

The three most common types of solar panels are Monocrystalline, Polycrystalline, and Amorphous:

Monocrystalline – made from a single large crystal, cut from ingots. Most efficient, but also the most expensive. Somewhat better in low light conditions.

Polycrystalline – cast blocks of silicon which may contain many small crystals, the most common type right now. Slightly less efficient than single crystal, but once set into a frame with 35 or so other cells, the actual difference in watts per square foot is not much.

Amorphous (also called thin film) – the silicon is spread directly on large plates or flexible laminates.They are cheaper to produce, but often much less efficient, which means larger panels for the same power. Uni-Solar is one example.

The differences between the two module types – crystalline and amorphous- really show up in their sunlight-to-electricity conversion efficiencies and power densities. Crystalline modules require less space than thin-film modules for the same amount of power—thin-film is less efficient in the conversion of sunlight to electricity.

Single- and multicrystalline modules have typical conversion efficiencies between 12% and 17%. But thin-film technologies can have half that, ranging from 6% to 8%. Thinfilm modules take up about twice as much space to generate an equivalent amount of energy compared to crystalline

modules.

Besides power density, there are two key differences in performance between crystalline and thin-film technologies. The first is impact of cell temperature on power production. The second is initial module power stabilization.

All PV modules experience a reduction in power with increasing cell temperature. For example, at 100°F, our sample crystalline module will produce approximately 6% less power than its STC rating. This effect is less pronounced for thin-film PV technologies—our example a-Si thin-film module would produce only 2% less power. While you can reduce cell temperature by allowing adequate air flow around any module, PV cells sitting out in the sun will still get hot—so thin-film a-Si modules might be a good choice for warm climates, especially if there’s plenty of room for the larger array.

Amorphous silicon modules take 6 to 12 months to reach their stable, rated output, whereas crystalline modules stabilize right away. So a-Si modules will show 20% to 25% higher-than-rated production at first. While that sounds like a bonus, this initial additional output must be considered in system design (for selecting wire sizes, charge controllers, and inverters). For example, if the final design indicates a 15 A circuit, the initial extra output might require accommodating 20 A. After this stabilization, thin-film modules degrade at similar rates to crystalline, about 0.5% to 1.0% per year.

It would be nice to go green but it needs to make sense money wise. We have a 1,300 square foot home on the beach home with plenty of sun. Our electric bill is 100 bucks a month give or take. How much will solar panels cost and how many solar panels will we need to effectively power our home.

DIY Solar panels

www.ecopoweredhome.com A Simple method to create cheap DIY Solar Panels and save on electricity http

Renewable energy

By using the renewable energy that the solar panels make, saving a good amount of money on power bills is easy and it can be as much as an 80% saving! This type of natural power is used in an increasing amount of places already. It is being used increasingly, not only in people’s houses, but also in commercial and for industrial power supplies. There are even power pumping stations and some telecommunications equipment that use the power created by solar panels.

As well as being a wonderful tool for saving money on power assists the environment and as such is often referred to as ‘green power’. Solar panels are a number of photovoltaic cells; these essentially make an environmentally friendly power source from the sunlight. This power is referred to as ‘solar power’. The get the optimum performance for this type of power production is by making sure that the panels are exposed to the sun for as much of the day as achievable, this system works best in moderate rather than extreme temperatures – nevertheless it will work in extreme climates also. The solar panels are normally mounted on rooftops, though it is possible to place them on special free standing frames as well. The key part of installing solar panels is to be certain that they are placed where they will get the most exposure to sunlight and to avoid any shade if possible. Clearly the more sunlight that they are exposed to, the more power they will make.

When building your own solar cells for your solar panels, extreme care must be taken to build it correctly to ensure that the utmost efficiency is achieved. There are many products available these days that make it very easy for the average person to build their own solar panels. DIY solar panels are a reasonable price to create and with the right information and materials, it is possible to commence saving cash on power bills almost straight away. In addition to that, if enough energy is created there are many localities where it is possible to sell the excess power back to the power corporations!

 

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