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What exactly are Solar power systems?

solar panels - The sun will be the primary source of energy on this planet and sunlight could be converted straight into electricity using solar panels. Electricity is now indispensable in life. It powers the machines that most us use daily.

So, what are solar panel systems? What if you may create your individual?

In the following paragraphs, we will teach you an easy technique of building your own functional solar power.


A solar panel is normally made of six (6) components namely the PV (photovoltaic) cell or solar cell which generates the facility, the glass which takes care of and protects the solar panels, the frame which offers rigidity, the backsheet the place that the solar cells are laid, the junction box where the wirings are enclosed and connected, as well as the encapsulant which is adhesives.

Because most people won't have use of equipment in manufacturing solar power panels, it is very important note and understand those six components for anyone to manage to plan the type of material needed to create a do-it-yourself or home-made screen.

The type of material needed concerning how to come up with a screen have to be for sale locally or online and must not exceed the expense of a fresh solar power or doesn't take a long time to build.

1.) PV Cell

The first thing to consider when building your personal solar panel could be the solar cell.

Photovoltaic (PV) cell or solar cell converts visible light into electricity. One (1) solar panel however just isn't enough to create a usable level of electricity much like the microbot in Baymax (Hero 6) which only becomes useful when combined as a group. This basic unit generates a DC (household power) voltage of 0.5 to 1 volt and although that is reasonable, the voltage remains to be not big enough for many applications. To create a useful DC voltage, the cells are connected in series after which encapsulated in modules making the cell. If one cell generates 0.5 volt which is linked to another cell in series, the above cells should then be able to produce 1 volt and so they may then be known as a module. A standard module usually is made up of 28 to 36 cells in series. A 28-cell module can produce roughly 14 volts (28 x 0.5 = 14VDC) that's enough to charge a 12V battery or power 12V devices.

Connecting 2 or more solar cells require that there is a basic comprehension of series and parallel connection which has similarities to connecting batteries to make up an electric battery storage system.

There's 2 most frequent cells that can be bought available in the market; a monocrystalline cell plus a polycrystalline cell. These two will surely have exactly the same size, 156mm x 156mm, though the main difference would be efficiency. It is important to purchase additional cells to serve as backup in case you fail on a few of the cells i.e. bad solder, broken cell, scratched, etc.

Monocrystalline solar panels are often black and octagonal in shape. Such a solar panel is made from the very best and purest grade silicon which makes them expensive. However they are the perfect of all types of solar cells and therefore are almost always the option of solar contractors when space is a factor to consider in having this power they want to attain depending on their solar system design.

Polycrystalline PV Cells are seen as a their bluish color and rectangular. These cells are designed inside a more simple process which lowers the purity in the silicon content as well as lowers the efficiency in the end result.

Generally, monocrystalline cells will be more efficient than polycrystalline cells however this does not necessarily mean that monocrystalline cells perform and outputs more power than polycrystalline cells. Solar panel efficiency has something connected to how big cells and every solar panel or cells have an efficiency rating according to standard tests once they were manufactured. This rating is normally in percentage as well as the common values cover anything from 15% to 20%.

2.) Glass

The glass protects the Solar cells while allowing optimal sunlight to give. Usually made of anti-reflective materials. Tempered glass could be the range of material nowadays for unknown and new manufacturers although there are still people who utilize flat plate glass on their own solar panels. Tempered glass are created by chemical or thermal means which is many times stronger than plate glass which makes it higher priced to create though the price of manufacturing them today is reasonable and cost-effective. Flat plate glass creates sharp and long shards when broken as opposed to tempered glass which shatters safely in small pieces upon impact, for this reason additionally they refer to it as safety glass. It needs to be noted here that a majority of amorphous solar panel systems uses flat plate glass because of the way the panel is constructed.

Tempered glass is exactly what manufacturers utilization in mass producing their solar panels. Within our DIY project, we propose to use Plexiglas otherwise known as acrylic glass that is safer compared to regular normal glass from your local home improvement center. It's kind of expensive than regular glass but is weather resistant and break easily. The Plexiglas can be screwed or glued easily towards the frame.

3.) Frame

A frame is generally made of anodized aluminum which gives structure and rigidity to the solar module. These aluminum frames will also be meant to be suitable for most solar mounting systems and grounding equipment for quick and safe installation on the roof or on a lawn.

The frame in the factory-built solar panel is usually the aluminum part where all four sides with the cell sheet are inserted. Refer to it a skeletal rectangular frame. The cell sheet mind you is made up of the opposite 4 components and they are layered and laminated within the following order from top to bottom; the tempered glass, top encapsulant, the solar cells, bottom encapsulant, then this backsheet. In your DIY solar power, i will be utilizing a wooden frame as well as the end-result would be something analogous to some picture frame in which the picture may be the solar panels glued to a non-conductive board, the glass for your Plexiglas top cover, and also the wooden part since the frame and backsheet.

4.) Backsheet

The backsheet may be the layer of plastic film on the back top of the module. This is actually the only layer protecting the module from unsafe DC voltage. The main purpose of the backsheet is to insulate and protect the handler from shock and still provide the safest, efficient, and dependable electrical conductivity possible.

The backsheet will be a wooden plywood where the frame will likely be screwed ahead and on the sides. It needs to be noted here that a perforated hardboard (Pegboard) will be utilized to place and align the Solar cells this also Pegboard will sit on top of the wooden backsheet and fitted inside the wooden frame.

5.) Junction Box

The junction box is how the terminal wires and bypass diodes can be found and concealed. The terminal wires are simply the positive and negative wires depending on the series connections of the Solar cells and can be linked to another cell, electrical controller, an assortment system, as well as to an inverter, with respect to the system design. The bypass diode is often a protective mechanism that prevent power from ok the solar power when it is not producing electricity such as the situation when it is nightime.

You will find junction boxes designed for factory-built solar power systems that are available nowadays to acquire online especially from China. If you are not low on time, purchase on the web and wait for an delivery or else you can simply buy a regular electrical junction box out of your local hardware store. The objective of the junction box is always to protect the terminals (bad and the good terminals) from water, dust, along with other elements. This is the location where the two wires (red for positive and black for negative) will probably be originating from. One other end of these two wires may also be protected by employing a PV accessory called MC4 which could also be purchased online alongside the PV junction box.

6.) Encapsulant

Encapsulant sheets prevent water and dirt from infiltrating the solar modules and function shock-absorbers that protect the Electricity cells. They have this adhesive bonding capability to the glass, the Electricity cells, and the backsheet such as a glue but stronger. Encapsulants are generally manufactured from Ethylene-Vinyl Acetate or EVA and so are applied using lamination machines and operations. Solar power manufacturers use a vacuum along with a large oven to correctly seal and cure the EVA sheet on the solar power systems. The majority of us will not have the power to do this but some still need tried without success although some had varying levels of success.

Encapsulants are thin plastic sheets that are usually laminated on the top and bottom elements of the solar cell sheet. The bottom encapsulant may be the layer on top of the backsheet where the solar panels have been placed and supported. Within our project, we will instead make use of a latex acrylic paint. This paint will not be used on the solar cells because when attempted, won't cause an identical distribution or putting on the liquid towards the top of the cells which can degrade performance. The paint will be applied to the wooden frame, wooden backsheet, and also to the Pegboard. This Latex Acrylic paint are able to protect the wooden parts from Ultra violet rays and can better resist blistering and cracking overtime. This paint, although water-soluble, can dry quickly and becomes water-resistant.

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