[RE-wrenches] Radian, Blue Planet and SMA 21 series AC coupled

[Kirpal]

William,
You can can set the sell voltage to 54.4 and that will help force a fuller
charge prior to selling. Has worked for me on a site that had the same
symptoms.
You will find that these batteries can be 100% at both 55.2 as well as
54.4....due to the flat-ish voltage/soc curve.
Hope that helps.
Happy Friday!
Kirpal at oregonsolarworks

On Fri, Apr 22, 2022, 1:31 PM William Miller via RE-wrenches <
re-wrenches at lists.re-wrenches.org> wrote:

> Friends:
>
>
>
> We are setting up our first Blue Planet system.  It is AC coupled with an
> SMA SB7-21 back-feeding a Radian 8048.    We followed all of the
> recommended settings when commissioning.
>
>
>
> The battery SOC is chronically stuck at 90% as displayed by the Blue
> Planet BMU.
>
> I think the problem is the grid sell setting is at 54 VDC.  Blue Planet
> likes 55.2.  I’m going to change that setting this afternoon but due to
> some mysterious Optics bug, I have to drive to the site to do so.
>
>
>
> If anyone has any experience with this kind of setup and can offer any
> advice, well I’d be mighty grateful.
>
>
>
> Thanks in advance.
>
>
>
> William Miller
>
>
>
> Miller Solar
>
> 17395 Oak Road, Atascadero, CA 93422
>
> 805-438-5600
>
> www.millersolar.com
>
> CA Lic. 773985
>
>
>
>
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