[RE-wrenches] Will IQ8 microinverters backfeed a generator during grid interruptions
Dave Angelini Offgrid Solar
offgridsolar at sti.net
Wed Jan 21 14:00:07 PST 2026
And in this case, with all the Ice storm doom and gloom coming, to alot
of the country, inform your users how to turn off their array and run a
generator safely!
Offgrid is just so much easier sometimes.
😉
Dave Angelini Offgrid Solar
"we go where powerlines don't"
[1]https://offgridsolar1.com/ [2] [1]
e-mail offgridsolar at sti.net
text 209 813 0060
On 2026-01-21 12:55 pm, Zeke Yewdall via RE-wrenches wrote:
> 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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Links:
------
[1] http://members.sti.net/offgridsolar/
[2] https://offgridsolar1.com/
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