AC coupling is last resort. I sure as heck do not want to deal with it!
I give them your phone number 😉
Dave Angelini Offgrid Solar
"we go where powerlines don't"
[2]https://offgridsolar1.com/ [3] [2]
e-mail [email protected]
text 209 813 0060
On 2025-08-14 7:45 am, Zeke Yewdall via RE-wrenches wrote:
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 [1]
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