I agree with you that line side tap is not a DIY friendly way to connection due to the fact. Many people still choose line side tap is because the the back feed using breaker to the main panel is usually caped at 40A breaker in a 200A panel with 200A Main breaker, unless I replace that 200A main...
Thanks all you guy's explanation.
I think I kinda understand that.
But I just noticed I missed an important thing:
If I understand everything correctly, if I line side tap the inverter AC output to my main panel, I wouldn't be able to use any electricity if the gird is down. Is that right...
That's crazy........
My system needs a 200A disconnect, $500 more each.
My system needs a 200A manual transfer switch, $500 more each.
These two boxes are more than $1000. I know some of CEC listed string Inverter is only $2000 or so....................There must be something wrong in this...
I am trying to do my first DIY solar system. 12 Kw panel, a string hybrid Inverter (Sol-Ark12k) and battery (30 kWh). Simple.
My requirement is normal: Single family house, Gird-tie system. 200A main panel. During the day time, use the electricity from solar panel, if there is more electricity...
I plan to install EG4-18k at one property. I will use whole house backup wiring, which means connect my main 200A panel directly to the Load. Like in the picture 1.
I noticed there is another way to connect the main panel: With a Bypass transfer switch. See below two image:
(1) With a Bypass...