[RE-wrenches] Enphase IQ8 systems

[Jason Szumlanski]

I believe that applies to all microinverters from the M215 to the IQ8. The
available power is additive as long as there is battery capacity and the
micro inverters are not off due to the battery being at full capacity. If
the battery is at full capacity, the IQ8 should still be able to supplement
heavy loads, but others will not react fast enough if they have already
been commanded off.

We always size our batteries alone to have sufficient power for the
expected loads. Some people have asked if they can just use air
conditioning during the day when the sun is shining and get a smaller
battery. I decline to design systems that way. I believe it would be too
unreliable.

Jason Szumlanski



On Wed, Apr 13, 2022, 8:39 AM Mac Lewis via RE-wrenches <
re-wrenches at lists.re-wrenches.org> wrote:

> Good Morning Wrenches,
>
> I am working through the Enphase training for their battery system while
> simultaneously designing a backup system.  Cart is in front of the horse
> just a bit!
>
> Does anyone know if you are using an IQ8 roof top micro, does its output
> capacity add to the battery output capacity for baseline power output when
> the sun is shining?  Or is this a bad assumption?  The fact you can do
> "solar only" backup suggests you can.
>
> For example, can I say (*during sunny conditions)*:
>
>  Battery Output + AC solar output = nominal output wattage available for
> backup?
>
> How are these systems performing in the field?
>
> Thanks as always!
>
> --
>
>
>
> Mac Lewis
>
> *"Yo solo sé que no sé nada." -Sócrates*
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