PV Install main derating and new circuits questions
I am signed up for a solar installation, but I
have not gotten a site inspection yet.
I wanted to educate myself with some degree to protect myself during any issue that may arise.
They mentioned (sales guy, not electrician yet) the need to derate my system from 125A main breaker to 100A to gain 50 more amps using the 125% rule. Doing my own investigation online... I believe that the 7040kw system will need 30amps.
My concern is that I don't have any available
breaker circuits for the inverter and the only way to install one would be to
merge (see image) the bottom 2 breakers into the upper 2 to gain space, which
would mean my entire interior and garage 120v would be tied together. Lastly, I
wanted to add a 32amp (50a breaker) for a future electric vehicle. Do I have
any options to utilize a sub-panel or other various alternative, or am I forced
into an upgrade 200amp panel? I am not looking to anything outside of code, I
only want to have some internet knowledge from the community once the
electrical site inspection happens.