Connecting Inverters to the Grid

Leonsutanta

Hello,

My name is Leon from Indonesia. I'm considering to install solar panels with micro inverters on my roof top that can generate about 5kW of power and also I'm planning to tie it to the grid. I'm by no means an electrician, therefore the installation will be done by an installer. The problem is, solar system is not too common here in Indonesia. So, before commencing the work, I would like to understand the installation basics first. Besides, more knowledge is always good in my opinion.

OK for starter, I attach a picture of my house main distribution box. Note this what my current power distribution looks like:

[URL=http://s36.photobucket.com/user/leonsutanta1/media/Mobile Uploads/Screenshot_20180814-211033_zpsbufh0haw.jpg.html][IMG]http://i36.photobucket.com/albums/e21/leonsutanta1/Mobile Uploads/Screenshot_20180814-211033_zpsbufh0haw.jpg[/IMG][/URL]

The cables with red circle marked number 1 down the bottom of the box comes from the main meter (grid). My house uses three phase system. Number 2 is where the electricity is divided. In my case divided into 3 (one for 1st floor, one for second floor, and 1 for third floor) and each is connect3d to each phase.

Now, as mentioned before, I am planning to install solar panels using micro inverters. By my calculation, I will have 2 strings of panels and micro inverters. My questions are as follow:

1. Can I combine these 2 strings of micro inverters using junction box before connecting it to the electrical panel?
2. How do I connect the inverter to the panel to make it grid tied? I'm going to use net meter, so I can "sell" the electricity when there's excess. Refering to the picture above, sshould I connect it at number 1 or between number 1 and 2? Can anyone send me some installation pics of a grid tied system? That'll be great

I'm hoping to get some good enlightenment from you experts

Thanks in advance