If all the 120 VAC loads have their neutrals land in the main meter panel then there is no need to run a neutral from there to the sub panel, as long as the inverter does have a neutral connection back to the meter panel. Especially when the inverter goes off grid it needs that neutral connection to the loads neutral in the meter panel.
Don Barch Energy Solar On Mon, Jul 29, 2024 at 11:53?PM William Miller via RE-wrenches <re-wrenches@lists.re-wrenches.org> wrote: > > Friends: > > I found a grid-tie battery-backup system with a 120/240 VAC critical loads > sub-panel that has no neutral run to it. All of the 120 VAC loads have their > neutrals land in the meter panel. > > I have always felt instinctively that the neutrals should land in the breaker > panel that feeds the circuit. I have looked through the NEC to find a > passage that spells this out but I can seem to find one. > > Is this a code requirement? Is this recommended practice? > > Thanks in advance. > > William Miller > > Miller Solar > > 17395 Oak Road, Atascadero, CA 93422 > > 805-438-5600 > > www.millersolar.com<http://www.millersolar.com>
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