http://solarpower5a.blog.com/2016/01/27/hello-world/ - veterans - - The sun is the primary source of energy in the world and sunlight can be converted straight into electricity using solar power panels. Electricity is now indispensable in daily life. It powers the machines that a majority of us use daily.
So, precisely what are solar panels? Let's say you may create your personal?
In this article, we are going to explain to you a simple method of building your own personal functional cell.
A solar power is often constructed from six (6) components namely the PV (photovoltaic) cell or solar panel which generates the facility, the glass supplies and protects the solar panels, the frame which provides rigidity, the backsheet where the solar panels are laid, the junction box in which the wirings are enclosed and connected, as well as the encapsulant which may serve as adhesives.
As most people does not have use of equipment in manufacturing solar panel systems, it is very important note and understand those six components to ensure that you to definitely be able to plan the type of material had to produce a do-it-yourself or home-made solar power.
The types of materials needed on the way to produce a solar panel has to be available for sale locally or on the internet and shouldn't exceed the cost of a brand new screen or does not take too much time to develop.
1.) PV Cell
The first thing to consider when building your own solar panel could be the solar panel.
Photovoltaic (PV) cell or solar panel converts visible light into electricity. One (1) solar cell however is not enough to generate a usable volume of electricity similar to the microbot in Baymax (Hero 6) which only becomes useful when combined like a group. This basic unit generates a DC (direct current) voltage of 0.5 to at least one volt and although this really is reasonable, the voltage remains not big enough for many applications. To make a useful DC voltage, the cells are connected in series and after that encapsulated in modules making the screen. If one cell generates 0.5 volt and is connected to another cell in series, the above cells should then be able to produce 1 volt plus they will then be called a module. A normal module usually is made up of 28 to 36 cells in series. A 28-cell module will be able to produce roughly 14 volts (28 x 0.5 = 14VDC) that is enough to charge a 12V battery or power 12V devices.
Connecting 2 or more solar panels require that you've a basic idea of series and parallel connection which has similarities to connecting batteries to create up battery power storage system.
There are two most frequent cells that are being sold in the market; a monocrystalline cell along with a polycrystalline cell. These two might have the identical size, 156mm x 156mm, though the main difference could be efficiency. You will need to purchase additional cells to serve as backup in the event you fail on many of the cells i.e. bad solder, broken cell, scratched, etc.
Monocrystalline solar panels are generally black and octagonal in shape. This kind of solar panel is constructed of the best and purest grade silicon which makes them expensive. But they are the most efficient of all of solar panels and are more often than not selecting solar contractors when space is a vital key to look into achieving the power they want to attain depending on their solar system design.
Polycrystalline Solar cells are characterized by their bluish color and rectangular shape. These cells are manufactured in a much easier process which lowers the purity in the silicon content and also lowers the efficiency in the result.
Generally, monocrystalline cells will be more efficient than polycrystalline cells however this does not always mean that monocrystalline cells perform and outputs more power than polycrystalline cells. Solar panel efficiency has something to do with the size of the cells and every solar panel or cells come with an efficiency rating depending on standard tests after they were manufactured. This rating is generally in percentage along with the common values range between 15% to 20%.
The glass protects the Electricity cells while allowing optimal sunlight to give. These are usually created from anti-reflective materials. Tempered glass will be the collection of material nowadays even for unknown and new manufacturers though there are nevertheless people who utilize flat plate glass on his or her solar panels. Tempered glass are created by chemical or thermal means and is many times stronger than plate glass rendering it higher priced to create but the expense of manufacturing them today is affordable and cost-effective. Flat plate glass creates sharp and long shards when broken instead of tempered glass which shatters safely in small pieces upon impact, this is why additionally, they think of it as safety glass. It should be noted here that many amorphous solar panels uses flat plate glass due to the way the panel is constructed.
Tempered glass 's what manufacturers use in mass producing their solar power systems. In our DIY project, we propose to make use of Plexiglas otherwise known as acrylic glass that is safer compared to regular normal glass from the local home improvement center. It is a bit expensive than regular glass but is safe from nature's elements and break easily. The Plexiglas can also be screwed or glued easily on the frame.
A frame is normally created from anodized aluminum which supplies structure and rigidity on the solar module. These aluminum frames may also be meant to be compatible with most solar mounting systems and grounding equipment for simple and safe installation over a roof or on a lawn.
The frame in the factory-built solar panel is generally the aluminum part where all four sides from the cell sheet are inserted. Consider it a skeletal rectangular frame. The solar panel sheet in addition consists of one other 4 components and so are layered and laminated inside the following order from top to bottom; the tempered glass, top encapsulant, the solar cells, bottom encapsulant, then the backsheet. In our DIY solar panel, we will be utilizing a wooden frame along with the end-result will be something analogous to a picture frame in which the picture may be the cells glued to a non-conductive board, the glass for your Plexiglas top cover, and the wooden part because frame and backsheet.
The backsheet is the layer of plastic film for the back top of the module. This is the only layer protecting the module from unsafe DC voltage. The principle function of the backsheet is usually to insulate and protect the handler from shock and provide the safest, efficient, and dependable electrical conductivity possible.
The backsheet is a wooden plywood the location where the frame will probably be screwed on top and on the sides. It should be noted here that the perforated hardboard (Pegboard) is going to be accustomed to place and align the Solar cells which Pegboard will lay on the surface of the wooden backsheet and fitted inside wooden frame.
5.) Junction Box
The junction box is when the terminal wires and bypass diodes are situated and concealed. The terminal wires are simply the good and bad wires using the series connections in the Solar cells and could be connected to another solar power, electric power charge controller, a battery system, in order to an inverter, based on the system design. The bypass diode is often a protective mechanism that prevent power from okay the solar panel when it's not producing electricity as in the situation if it is evening.
You will find junction boxes suitable for factory-built solar panel systems which can be now available to acquire online especially from China. If you're not low on time, purchase online and wait for the delivery or else you can simply get a regular electrical junction box from your local hardware store. The goal of the junction box is to protect the terminals (negative and positive terminals) from water, dust, and other elements. This is where the two wires (red for positive and black for negative) will likely be coming from. One other end present in wires can be paid by using a PV accessory called MC4 which can also be purchased online with the PV junction box.
Encapsulant sheets prevent water and dirt from infiltrating the solar modules and serve as shock-absorbers that protect the Electricity cells. They've this adhesive bonding capability to the glass, the Electricity cells, as well as the backsheet such as a glue but stronger. Encapsulants are generally manufactured from Ethylene-Vinyl Acetate or EVA and they are applied using lamination machines and operations. Solar power manufacturers work with a vacuum and a large oven to correctly seal and cure the EVA sheet on the solar power panels. Most of us would not have the capacity to do this however, many continue to have tried without success while some had varying amounts of success.
Encapsulants are thin plastic sheets which might be usually laminated on top and bottom elements of the solar cell sheet. The bottom encapsulant will be the layer in the backsheet in which the cells are in reality placed and supported. In our project, we are going to instead use a latex acrylic paint. This paint are not placed on the pv cells because when attempted, will not bring about an equal distribution or using the liquid to the top of the cells which may degrade performance. The paint will probably be applied to the wooden frame, wooden backsheet, and the Pegboard. This Latex Acrylic paint should be able to protect the wooden parts from Ultra violet rays which enable it to better resist blistering and cracking overtime. This paint, although water-soluble, can dry quickly and becomes water-resistant.