They have to be placed in the position where the sun shines at most. And it is important to consider the adequate position for the whole year.
Place the posts first and attach metal rails to the posts on your roof. Attach solar panel mounts to the solar panels; the roof-ground mounts will suffice. This step is a little tricky, you have to assure you that there is no space between the panels, if there is some, the transmission of energy between the cellars will be lowered. It is also very important to avoid manipulating the panels with your feet, or even worse shoot at them. You have to use only your hands and carefully.
The next step is to connect them to the inverter. When it comes to inverters, the synchronous solar panel inverter is the best affordable choice.
A battery stores the solar energy and the excess can be sold back to the utility company. In any situation whereby you do not have enough energy for your house, the utility company will supply the energy through the converter.
I am sure you have understand, you cannot lose in this situation. If you have too much energy, you can sell it, and if the contrary, the company will supply you for all your needs. And in case anything happens to the wire from the utility company, you will the only one who will be able to use some energy in your city because the battery will still provide you with sufficient amount of stored energy you need
Now, the installation is done, I hope it was not too difficult. The thing is to pay attention to every details to avoid some loss of energy or to have a faster deterioration of the panels than what it is normally.
If you are interested to learn more about how to install, visit: http://www.sysenr.com (French)