<font size=2 face="sans-serif">Hi:</font>
<br>
<br><font size=2 face="sans-serif">Having both connected will work the
way you want, only if you make sure the solar charger charging voltage
is higher than the Kohler charger voltage.</font>
<br>
<br><font size=2 face="sans-serif">When the solar charging source has higher
voltage it will trump the lower Kohler charging voltage an do the charging
when the sun is out. When the sun is not out, the Kohler will do
the job. </font>
<br>
<br><font size=2 face="sans-serif">However, if the solar charging source
is never higher, the solar charger will not be able to create any charging
current as it will always see an already high battery terminal voltage
as maintained by the Kohler.</font>
<br>
<br><font size=2 face="sans-serif">If there is no charging voltage adjustment
on the Solar or Kohler charger, you could put one, (or more as required)
diodes, in series on the Kohler charging wire to drop its voltage enough
to make sure the solar charger voltage is slightly higher.</font>
<br>
<br><font size=2 face="sans-serif">The diodes could be anything as long
as they can handle the full charge current from the Kohler.</font>
<br>
<br><font size=2 face="sans-serif">JARMO<br>
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Jarmo Venalainen</b> | </font><font size=1 color=#008000 face="Arial"><b>
Schneider Electric </b></font><font size=1 face="Arial"><b> | Xantrex
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<tr valign=top>
<td><font size=1 color=#5f5f5f face="sans-serif">From:</font>
<td><font size=1 face="sans-serif">"frenergy" <frenergy@psln.com></font>
<tr valign=top>
<td><font size=1 color=#5f5f5f face="sans-serif">To:</font>
<td><font size=1 face="sans-serif">"RE-wrenches" <re-wrenches@lists.re-wrenches.org>,
</font>
<tr valign=top>
<td><font size=1 color=#5f5f5f face="sans-serif">Date:</font>
<td><font size=1 face="sans-serif">07/16/2015 08:23 AM</font>
<tr valign=top>
<td><font size=1 color=#5f5f5f face="sans-serif">Subject:</font>
<td><font size=1 face="sans-serif">[RE-wrenches] Generator brains</font>
<tr valign=top>
<td><font size=1 color=#5f5f5f face="sans-serif">Sent by:</font>
<td><font size=1 face="sans-serif">"RE-wrenches" <re-wrenches-bounces@lists.re-wrenches.org></font></table>
<br>
<hr noshade>
<br>
<br>
<br><tt><font size=2>Wrenches,<br>
<br>
We recently discussed the significant load
the brains of many <br>
gensets requires, especially in off-grid. I have been trying to keep
the <br>
start battery and brains of a Kohler 14KW gen charged with a ~40 PV. This
<br>
works fine until the winter.<br>
<br>
Any issues with keeping that PV connected (with
its charge <br>
controller) and re-connecting the supplied-by-Kohler power source connection
<br>
to keep the battery and brains happy? I would like to think the PV
would <br>
take some of the load off the AC connection to the main off-grid system,
<br>
with no conflicts.<br>
<br>
TIA<br>
<br>
Bill<br>
Feather River Solar Electric <br>
<br>
<br>
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