<p dir="ltr">Hi Mark,</p>
<p dir="ltr">If all battery power flows in and out of Sunny Island(s) then it will keep track of SOC without a external shunt. I'm not sure how it does it but all the SOC dependent controls work fine in that scenario. The SOC algorithm calculation works much better than any other that I've used. </p>
<div class="gmail_quote">On Jan 16, 2016 1:34 PM, "Mark Frye" <<a href="mailto:markf@berkeleysolar.com">markf@berkeleysolar.com</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Folks,<br>
<br>
I know with both the Radian and the SI you can use an external shunt to support the measurement of KWH and support various SOC controls.<br>
<br>
But what happens if you don't use an external shunt?<br>
<br>
I am pretty sure that the Radian does not have an internal shunt to support SOC control.<br>
<br>
What about with the SI? Does it implement it's SOC controls even without an external shunt?<br>
<br>
Thanks,<br>
<br>
Mark Frye<br>
Berkeley Solar Electric Systems<br>
<br>
<br>
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