<div dir="ltr">Hi Drake,<div><br></div><div>Good questions. Yes, the taper charge appears to be working well. I've been to the site a couple of times where loads were low, irradiance was high, and battery SOC was ~90% and the Sunny Boy was just covering the load and a little trickle charge. </div><div><br></div><div>I have noticed that the SOC seems to max out around 90 to 92% - that seems to be the case with Sunny Islands in general. I'm not enough of a battery expert to know if this is a good thing or not. I do know that I custom programmed in all the AGM battery parameters and set max voltages. I also disabled equalize mode since I couldn't find any literature from US battery on recommendations for their AGM. </div><div><br></div><div>August</div></div><div class="gmail_extra"><br clear="all"><div><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><p><b><span style="font-size:9.0pt;font-family:"Century Gothic","sans-serif"">August Goers</span></b></p><p><span style="font-size:8.0pt;font-family:"Century Gothic","sans-serif"">Luminalt Energy Corporation</span></p><p><span style="font-size:8.0pt;font-family:"Century Gothic","sans-serif"">o: 415.641.4000</span></p><p><span style="font-size:8.0pt;font-family:"Century Gothic","sans-serif"">m: 415.559.1525</span></p>
<p><span style="font-size:8.0pt;font-family:"Century Gothic","sans-serif""><a href="http://www.luminalt.com" target="_blank">www.luminalt.com</a></span></p>
<p> </p></div></div></div>
<br><div class="gmail_quote">On Mon, Jul 24, 2017 at 5:36 AM, Drake <span dir="ltr"><<a href="mailto:drake.chamberlin@redwoodalliance.org" target="_blank">drake.chamberlin@redwoodalliance.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Are you getting a good taper charge with this system? Are the batteries reaching a decent state of charge from the AC coupled connection with the inverter?<br>
<br>
Thanks,<br>
<br>
Drake<div class="HOEnZb"><div class="h5"><br>
<br>
<br>
At 11:08 AM 7/23/2017, you wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
August,<br>
<br>
Of course the genny itself has its own emission of noise but the environment its in certainly will affect its overall "annoyance level". Backed up to metal container is a negative, I can't tell from the photo if the Kohler is on the side away from most of the public, probably don't have to go on, you must have thought of these things....it could have its own (partial?)enclosure with some sound deadening qualities. Hondas are a little quieter but not that much, hopefully the darn thing doesn't have to come on, eh?<br>
<br>
Nice set-up.<br>
<br>
Bill<br>
<br>
Feather River Solar Electric<br>
Bill Battagin, Owner<br>
4291 Nelson St.<br>
Taylorsville, CA 95983<br>
<a href="tel:530.284.7849" value="+15302847849" target="_blank">530.284.7849</a><br>
CA Lic 874049<br>
<a href="http://www.frenergy.net" rel="noreferrer" target="_blank">www.frenergy.net</a><br>
<br>
On 7/21/2017 11:39 AM, August Goers wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
All,<br>
<br>
I thought I'd provide an update on our setup since we've completed the install and commissioning. More or less, the installation went well. We did have one of the US Battery AGM L16 batteries dead on arrival with a bad cell. That bad battery screwed up the state of charge (SOC) calculations in the Sunny Island and made the SOC reading jump from ~ 80% to 19% in just a couple of minutes. It was easy to find the bad battery - all the batteries were about 6.5 v with the bad battery reading about 4.5 v. We pulled that battery out of the string for warranty replacement and are currently running it with seven batteries at 42 v nominal. It's cool that the Sunny Island allows for this. Other than that, the frequency shift derate between the Sunny Island and Sunny Boy is working perfectly and the system has more than enough capacity to run the loads during the summer months. I'd say the Kohler generator is the nice unit although it is a little loud for this application. If I had to do this portable application again, I'd probably just go with the Honda 7000.<br>
<br>
Thanks for your help! August<br>
</blockquote>
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