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Probably why I should stay with 120% limit. With a double picking up 120v from L1 and L2 for 240v, it also picks up N amps form each...

No, counted total both sides. So a double 100a counts 100 for each side? Total of 11 doubles out of 16 breakers. Counting again, left...

Staying with the 120% rule. Counted breakers in the two room addition's 200a main panel and they total 585 amps. That includes the...

Didn't know about sum of breakers, thought 120% ruled. Thank you.

Future proofing a second inverter feed to the lightest loaded 200a main, shifting amps from load to solar back feed.. Three mains split...

Hoping the 175a main would still work if I ever decided to go hybrid and battery using a Sol Ark 15 or EG4 18kPV. No outages since the...

No, going with a 175a in the 200a main. Easier than a panel swap and gives me 65a of backfeed ability. Covers SA 15 62.5a out, EG4 18...

Tempting to swap the 225 amp main with the 200 amp main breaker, but NEC probably frowns on that. Changing the 200 amp main to 175 amp...

Inverter AC out to a tap on the 100a line to the 200a main panel's breakers, does the 120% 40a limit go away? Is changing the 200a main...

Sorry to make this so long but comments are helping. First the house panels, 1997 GE. four load wires go through the back of the meter...

Thanks all for the help. This is an old-1987 100a panel, not so old-1997 house, and 2019 addition. Original owners had an apartment in...

Cut and paste dropped lines. Replacing 12 breaker 100a shop panel with larger, need more breakers and amps as need for inverter. 225a...

When we did the addition for a mother in law apartment the County asked for a septic engineer's report that the current system could...

No city inspectors only utility. Nothing has raised a question about size until you get to megawatt production. Utility currently...

Looking at ways to pass the 120% rule. Need to get to 40 amps or less and the Growatt 9k-18kPV does that with 38amps AC out. Larger...

Just went through Ebay and QOM2s, 125-225 amps, can be had for ~$80 and up. Prices overlap. Getting the hom3060L225PGCVP panel for the...

I see what you mean about breaker size. Encouraged by lower prices then found the Square D chart with QOM 1 and 2 frame sizes with the...

Been awhile so I pulled the 100 amp panel's breaker cover and found the incoming mains are 4awg copper and not aluminum. Old panel...

Looking at breaker change for 120% rule. With 200a feed, what determines a panel's amps - manufacture label, main breaker, volume for...

Yes, before utility said CB disconnect was OK I was looking at expensive blade disconnects. Hadn't thought about solar AC out needing...