# Simple Solar Panel Free Guide

We all need electricity, and no one can stay without it. Some of us have the ability to make a successful project to get some free power, but some others have no idea how to do that.

Step by step, in this article, I will explain to you how to make this possible, how to install your system to get free electricity, to minimize consumption.

Table des matières

#### #1. Pick up the right number  of solar panels

look out how many kilowatts (KWh) of electricity you use (need ) each month or each day,For example: if you consume 2kwh each day, how many panels you have to buy?

First suggestion: for 2000 w / 100w equals 20.
you need at least 20 Solar Panel of 100 w.
Second suggestion: 10 Solar Panel of 200 w

100 w or 200w?
ََAfter making all the calculus of power you need, now you have to choose the required Panel and to get that you should know tow things :

First: The Total space on your home for installing your system why?
because the size of a 100 W Panels is not the same with 200 w Panels.

## #2. Cost per watt.

For example :

* You find in a magazine  Panel of 100 W for  100 \$ and a 200 W for 150 \$

you have to do some calculus:
100 W/100\$ = 1 cent per watt

200W/150 \$=1.33 cent per watt

For a successful choice, I think you should choose the 200 W Panel.

## #2.Efficiency

The Solar Panel s efficiency rating refers to the amount of solar radiation converted by the panel and the acceptable efficiency range  of the output  power produced by a solar panle is between  15-22 %. and the more efficient the panel , the more the output the panel give .

When you know that using the more efficient panel rather then less one while it cost a bit more you have to know also that the more  efficient one allows to reduce area

For example :

Let s suppose we have two solar Panels one  with 250 W and 17 % efficient  and the second one  of 300 W and 18 % efficient while they have the same size (same number of cells).

## #4.Warranty

The quality of the solar panels is an important factor to ensure the operation of the electrical system don’t forget to buy a Panel with a High Performance and without manufacturing defects And do not be deceived by the low price of the solar panel, because most of the solar panels that are found in the market at low prices are not of high quality and have major defects and are not suitable for their installation.

## #3.Roof Mount or Ground Mount?

### Ground mount

Building your system at the ground may be the only option you can take for some reasons ;

1. when you have no space on your roof or it’s not oriented.
2. Installing a solar system on the ground makes it easier to clean.
3. Maintain and replace the equipment.
4. you can control the orientation of your installation system and fix it to the right position

### Roof mount

Most people choose roof mounts instead of ground mounts by default for some reasons  ;

1. when there is no space on the ground.
2. less expensive.
3. installing a solar system on the roof takes less time to build.
4. One of the advantages of making your system on the roof is to use this unused space(roof) and in the same time, you will gain some areas for making different things.

## #3.Orientation and Azimuth

### Orientation

Solar panels should point directly toward the equator for maximum exposure to the sun, there are many ways and tools to get the required direction.

### Azimuth

For optimum exposure to the sun, solar panels will point directly to the equator. You want to face your panels as close as possible to the real solar south if you live in America. When you stay on the equator’s south side, then face them north.
If you are working on your roof and are unable to adjust the orientation, East and West work at reduced efficiency. (Never construct an equator-facing machine. It will not generate a significant amount of power.)

The horizontal face is known as the azimuth of your panels (in relation to the equator).
That’s half the equation: to tilt your tables, you also need to find the right angle.
As a rule, to get the most production year-round, you should set your panels at an angle equal to your latitude. Los Angeles, for example, is situated at 34.05 ° N latitude. In L.A., you’ll get the most out of a system built at a 34 ° angle.