[RE-wrenches] Will IQ8 microinverters backfeed a generator during grid interruptions

[William Bryce]

Control by web. rock solid not cloud based.

https://controlbyweb.com/relays/

On Wed, Jan 21, 2026 at 4:05 PM scot.arey--- via RE-wrenches <
re-wrenches at lists.re-wrenches.org> wrote:

> So I like this concept but if I was physically close from solar to gen
> then I'd just add dedicated PV conductors and move PoI to gen line side.
> But solar is on other side of home separated only by Texas hard scrabble
> rock that is nearly impervious to trenching.
>
> Now if I had wireless controlled contactors....??? Is such a thing made?
>
> *Howard "Scot" Arey*
> *Owner, Solar CenTex*
> 254-300-1228
>
> ------------------------------
> *From:* RE-wrenches <re-wrenches-bounces at lists.re-wrenches.org> on behalf
> of Zeke Yewdall via RE-wrenches <re-wrenches at lists.re-wrenches.org>
> *Sent:* Wednesday, January 21, 2026 2:55 PM
> *To:* RE-wrenches <re-wrenches at lists.re-wrenches.org>
> *Cc:* Zeke Yewdall <zeke at darkforestsolar.com>
> *Subject:* Re: [RE-wrenches] Will IQ8 microinverters backfeed a generator
> during grid interruptions
>
> In that case, we're getting way off track and way more complicated :P
>
> Just put a contactor between the PV array and the POI using the NC
> contacts, with the coil powered off the generator.  Then the PV array can
> never backfeed the generator because it'll be turned off anytime the
> generator is running.
>
> Zeke
>
> ------------------
>
>
> Thanks but I'm just trying to grid-tie a small Enphase array without ESS
> where the point of interconnection is on the customer side of the
> generator/ATS.
>
> Trying to use existing wires in place to simplify and lower costs...but
> the generator is my constraint because I need the PoI to be on line side of
> the ATS.
>
> Howard "Scot" Arey
> Owner, Solar CenTex
> 254-300-1228
>
>
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