If the system isn't connected to the grid, and can not be connected to the grid accidentally, it really doesn't matter. What does matter is that you provide proper over-current protection on all circuits, including the feed lines from the inverter(s).
My off-grid system feeds my home's grid-connected breaker panel, but it does so through an interlocked double-pole breaker that can not be turned on unless the main breaker leading to the grid is turned off.
Your post is a bit confusing because you used the term "back feed the panel". Back feeding usually refers to a panel that is already connected to a power source, usually grid power, or possibly referring to a sub-panel that is powered by the home's grid connected panel.
Back feeding is a description used to indicate a second alternative power source when the primary source is unavailThank you fo4 your replyable.
If the system isn't connected to the grid, and can not be connected to the grid accidentally, it really doesn't matter. What does matter is that you provide proper over-current protection on all circuits, including the feed lines from the inverter(s).
My off-grid system feeds my home's grid-connected breaker panel, but it does so through an interlocked double-pole breaker that can not be turned on unless the main breaker leading to the grid is turned off.
Your post is a bit confusing because you used the term "back feed the panel". Back feeding usually refers to a panel that is already connected to a power source, usually grid power, or possibly referring to a sub-panel that is powered by the home's grid connected panel.
Back feeding is a description used to indicate a