I have a 125 amp main if I derate to main to 100 I can back-feed 50 amps .the problem is I have a 60 amp backfeed the wire from Pg&e is only rated for 125,I know about the eaton 125 amp main with 225 amp bussing Pg&e saying that the wire has to be rated for the bussing 225 first time I was told this by Pg&e,I have installed those a thousand times never had a issues, I ask them about the seimans parallel solar connection they said that was fine,but the lowest main they have is 150 amps derate breaker ,max Pg&e is letting me go is 125 amp service,does anybody know of a MSP that will accommodate this situation are a way around this