[RE-wrenches] "Sharks tooth" charging profile with LG RESU battery and SolarEdge
Dave Angelini Offgrid Solar
offgridsolar at sti.net
Tue Oct 17 19:31:29 EDT 2017
I have! It was with the RESU10 and not the 10H. It took some time for me
to convince the Engineers i was working with that this was an issue. They
called it micro-cycling and I called it not typical for an offgrid battery
system and possibly wearing the battery for no reason. They did fix it and
I am 3 months back into the testing and love it.
It is from the steep I vs V curve of the Lions and Schneider had to taper
the charge. Now, if a 2KW load comes on to a fully charged LG, the battery
will support about 200 watts and after about 5 minutes the full load will
be on the solar, as it should be.
If this is your problem maybe there is new firmware? There is more but
that is all my NDA allows at this time. Best system I have ever owned in
25+ years Offgrid
Dave Angelini Offgrid Solar
"we go where powerlines don't"
http://members.sti.net/offgridsolar/
e-mail offgridsolar at sti.net
text 209 813 0060
> We have installed several LG Resu10H batteries with Solar Edge StorEdge.
> One
> just happened to be my house.
>
>
>
> I have an eGauge system ay my home so I'm seeing what others might not be
> and that is an odd "sharks tooth" solar production curve.
>
>
>
> These have been bluebird clear solar days in Texas but this jagged curve
> on
> my StorEdge indicates near constant float charging of the LG battery. The
> lower dasjed line is a standalone solar array that is part of my larger
> system and you can see that is totally smooth.
>
>
>
> My question for the group is has anyone else seen this jagged "shark
> tooth"
> production profile when using the StorEdge / LG? Seems odd that this much
> power is siphoned off constantly to keep an LG at 100% SoC.
>
>
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>
>
>
> Howard "Scot" Arey
>
> Owner, Solar CenTex
>
> NABCEP Certified PV Installation Professional
>
> 254-300-1228
>
> scot.arey at solarcentex.com
>
>
>
> www.solarcentex.com <http://www.solarcentex.com/>
>
> https://www.facebook.com/SolarCentex
>
>
>
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>
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Dave Angelini Offgrid Solar
"we go where powerlines don't"
http://members.sti.net/offgridsolar/
e-mail offgridsolar at sti.net
text 209 813 0060
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