[RE-wrenches] Adding battery to grid tie

[Zeke Yewdall]

While the AC coupled PV system can be added to the AC backed up loads
panel, this defeats a lot of the functionality of a dedicated AC coupled PV
array input on the AIOs and is not recommended by most of them.   In
theory, yes, it works on most inverters to just add it as a negative AC
load -- and I've even AC coupled an old Trace SW, and it works fine on
that, despite being designed and built before AC coupling was thought of.

But, if it's just on the AC loads output, the inverter does not have the
ability to drop the AC PV array separately from the load if it needs to for
high battery charge regulating, does not have the ability to measure the PV
array input on monitoring, and may have other issues.

Zeke

> *Subject:* Re: [RE-wrenches] Adding battery to grid tie
>
> Correct me if I'm wrong:  I believe AIOs can accept AC coupled power
> through the load 'output' port. That leaves the Grid and Gen inputs free
> for their roles as labelled.
>
> The AC coupled inverters connect via a breaker in the critical loads
> panel.
>
>
> William Miller
> Miller Solar.com
> 805-438-5600
> www.millersolar.com
>
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