Service Upgrade: Converting Existing Main Panel to Sub Panel

[beerbelly25]

FYI: The bonding screw was located directly adjacent to the neutral lug on this load center after disconnecting the neutral, shutting the breakers off and checking continuity between neutral and ground bars to test.

The old panel has a 150 Amp main but you are now feeding it with a 90 Amp feed. Did you move some of the original load from the old panel to the new main? If not have you done a load calc to verify that a 90 Amp feed is OK? It looks like there is a subpanel to the left of the old main, did you switch its feed from the old main to the new main? It looks like it's feed by the GE 60 Amp 2 pole breaker.

That is a 60 amp sub panel for a hot tub. I ran at least 4 online load calculations and because I have gas heat, water heater and stove I’m only running around 75A max. I may have to run a separate feed for that sub panel if my calculations turn out to be incorrect, but I’m going to see how it goes. Thanks for your input.