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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Hello all,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I agree there is no “no-brainer” answer to this, but two
thoughts:<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Fist, are there any reasons NOT to connect the charge controller
to the Hub, if you have all of the right equipment there anyway?<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>And….<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Second – although I don’t believe this algorithm is fully
functional yet, the SOC management, based on the FNDC would “communicate” with
the FX inverters and the charge controllers if everything is via the hub. This
could be beneficial in systems where you have both solar and generator / grid
charging going on.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Thanks,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Walt<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>Walt Ratterman<o:p></o:p></span></b></p>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>SunEnergy Power International</span></b><b><span
style='font-size:10.0pt;color:#1F497D'><o:p></o:p></span></b></p>
<p class=MsoNormal><b><span style='font-size:10.0pt;color:#1F497D'><o:p> </o:p></span></b></p>
<p class=MsoNormal><span style='font-size:8.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>11 Laurel Lane South Washougal, WA 98671<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:8.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>(360)-837-3680 ▪ fax (360)-837-1315 ▪ Skype
Walt-Mobile<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:8.0pt;font-family:"Arial","sans-serif";
color:#1F497D'><a href="mailto:wratterman@SunEPI.org">wratterman@SunEPI.org</a>
</span><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'> </span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>▪ <a href="http://www.sunepi.org/">www.SunEPI.org</a><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:8.0pt;font-family:"Arial","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";
color:windowtext'>From:</span></b><span style='font-size:10.0pt;font-family:
"Tahoma","sans-serif";color:windowtext'>
re-wrenches-bounces@lists.re-wrenches.org
[mailto:re-wrenches-bounces@lists.re-wrenches.org] <b>On Behalf Of </b>Kent
Osterberg<br>
<b>Sent:</b> Monday, January 04, 2010 4:16 PM<br>
<b>To:</b> RE-wrenches<br>
<b>Subject:</b> Re: [RE-wrenches] Outback FM80's connected to Hub<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>benn,<br>
<br>
Since this system already has a hub to stack the inverters, the charge
controllers may as well be connected to it. The cat 5 cables are cheaper
than extra temperature sensors. The advantages of being networked: The
temperature compensation is coordinated with a single temperature sensor.
Both charge controllers will change operating modes together (the older MX 60
wouldn't do this) so one isn't in float while the other is still in bulk
mode. The equalize command from the Mate is global so the charge
controllers are supposed to equalize when you set the inverters up to equalize
(the MX 60 was <i>supposed</i> to do this to). I don't know of any
disadvantages, but the advantages are actually pretty minor.<br>
<br>
Kent Osterberg<br>
Blue Mountain Solar<br>
<br>
<br>
benn kilburn wrote: <o:p></o:p></p>
<p class=MsoNormal>Wrenches, <o:p></o:p></p>
<div>
<p class=MsoNormal><o:p> </o:p></p>
</div>
<div>
<p class=MsoNormal>I have just set up an off grid system for a client and am
now weighing out the pros and cons of connecting the two FM80's to the Hub or
leaving them charging the battery independently. <o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><o:p> </o:p></p>
</div>
<div>
<p class=MsoNormal>The system consists of an FW1000 with two stacked
VFX3648's. The two FM80's are mounted under the inverters and each is
connected to it's own array. One is 3.4kW on a roof and the other is 3.6kW on
two poles.<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>Outback has commented on this and has offered no convincing
reasons for connecting them to the Hub.<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><o:p> </o:p></p>
</div>
<div>
<p class=MsoNormal>Any comments or experiences?<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><o:p> </o:p></p>
</div>
<div>
<p class=MsoNormal>Cheers,<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>benn<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><br>
<span class=ecxecxecapple-style-span><span style='color:#002060'>DayStar
Renewable Energy Inc. </span></span> <o:p></o:p></p>
<div>
<div>
<p class=MsoNormal><a href="http://www.daystarsolar.ca">www.daystarsolar.ca</a><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><a href="mailto:benn@daystarsolar.ca">benn@daystarsolar.ca</a><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>780-906-7807 <o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>HAVE A SUNNY DAY <o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><o:p> </o:p></p>
</div>
<div>
<p class=MsoNormal><span class=ecxecxapple-style-span><b><span lang=EN-CA
style='font-size:7.5pt;font-family:"Arial Narrow","sans-serif";color:#00B050'>CONFIDENTIALITY
NOTICE:</span></b></span><span class=ecxecxapple-style-span><span lang=EN-CA
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</div>
</div>
<p class=MsoNormal style='margin-bottom:12.0pt'><o:p> </o:p></p>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<div class=MsoNormal align=center style='text-align:center'>
<hr size=2 width="100%" align=center>
</div>
<p class=MsoNormal>Windows Live: Make it easier for your friends to see <a
href="http://go.microsoft.com/?linkid=9691811" target="_new">what you’re up to
on Facebook.</a> <o:p></o:p></p>
<pre><o:p> </o:p></pre><pre style='text-align:center'>
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