steve burke
Member
Hello Gentlemen,
This is a code question about running PV conductors continuously through, but not connecting to, a sub panel.
the setup..
Have a 200A westinghouse main that i would like to feed 15a (12a from collectors) of solar from a detached garage. Also have 25A breaker at bottom of main panel on house receiving 20a of house solar.
Plan to keep existing 100A subpanel in garage—linked to house main panel with 60 feet of 1-1/4 PVC under driveway and protected by 60amp breaker in main panel. This will service 50A EV charger (3 #3).
In order to get PV from garage roof to main, we need to run pv conductors from garage roof, through garage subpanel and share the conduit with the three #3s providing power to garage.
To keep with the 120% rule for main panel, plan to run two #10s from garage to bottom of main panel while keeping existing #3s (from main to garage) to power car charger.
The question is whether the solar conductors from the garage must be unboken from the garage roof, through the garage sub, and into the house main, of if we can make a connection inside the subpanel transitioning from Romex to THHN.
Ideally, we will run 10/2 romex from garage solar connection and into the sub, then go to individual #10 conductors at sub (without going through a sub breaker), through conduit and into the main panel.
thank you.
This is a code question about running PV conductors continuously through, but not connecting to, a sub panel.
the setup..
Have a 200A westinghouse main that i would like to feed 15a (12a from collectors) of solar from a detached garage. Also have 25A breaker at bottom of main panel on house receiving 20a of house solar.
Plan to keep existing 100A subpanel in garage—linked to house main panel with 60 feet of 1-1/4 PVC under driveway and protected by 60amp breaker in main panel. This will service 50A EV charger (3 #3).
In order to get PV from garage roof to main, we need to run pv conductors from garage roof, through garage subpanel and share the conduit with the three #3s providing power to garage.
To keep with the 120% rule for main panel, plan to run two #10s from garage to bottom of main panel while keeping existing #3s (from main to garage) to power car charger.
The question is whether the solar conductors from the garage must be unboken from the garage roof, through the garage sub, and into the house main, of if we can make a connection inside the subpanel transitioning from Romex to THHN.
Ideally, we will run 10/2 romex from garage solar connection and into the sub, then go to individual #10 conductors at sub (without going through a sub breaker), through conduit and into the main panel.
thank you.