[RE-wrenches] N-G bond for supply side connection Midnite Power

[Christopher Warfel]

The supply side switch needs the Neutral-GEC bond.  There should also be 
one in the Main Service Panel.  Although just looking at 250.142 (A) it 
says "shall be permitted".  So, that is a little confusing to me. I 
always have had that bond for this type of connection.  Chris

On 10/23/2025 9:07 AM, Dave Tedeyan via RE-wrenches wrote:
> Hi All,
>
> For years I have understood that when doing a supply side connection, 
> you are supposed to bond the neutral to ground in the solar service 
> disconnect. I have a Midnite AIO system with two inverters (set up as 
> a supply side connection) that recently was getting a CA-DC link 
> Overvoltage error. When talking to Midnite, their first response was 
> to make sure that there was only one N-G bond in the whole system. 
> When I mentioned that the solar is a separate service and thus there 
> is a N-G bond in both the main panel and the inverter distribution 
> panel, they said to remove it from the inverter distribution panel. I 
> want to make the system work right, but I also am hesitant to do 
> something against how I have understood the NEC to be for a long time. 
> I am curious if you all have thoughts on this or run into a similar 
> situation.
>
> Cheers,
> Dave
>
> -- 
>
> Logo <https://www.sungineersolar.com/> 	
> Dave Tedeyan, P.E.
> Owner | Sungineer Solar
> p: he | him | his
> a: 1653 Slaterville Rd. | Ithaca, NY 14850
> w: www.sungineersolar.com <http://www.sungineersolar.com/>
> c: (607) 270-0370
>
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-- 
Christopher Warfel, PE
ENTECH Engineering, Inc.
PO Box 871, Block Island, RI 02807
(401) 447-5773
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