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<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">After
spending a lot of time and money to make the SMA Sunny Island
work with a grid tie inverter system of twice the Sunny Island
capacity we dropped the project. The problem we had is that
the system is complicated and we were spending far too much
time working with the people in the field as well as with our
own internal wiring shop. We have made changes in our own shop
and can now better build these systems. We have one customer
that uses a lot of these because he insists on putting 20 to
24KW of PV on double stacked AC coupled Sunny Island systems.
We have had no issues at all in the field when the SMARB
system is properly installed. We are very leery of opening
this back up to installers because it is quit often being
installed by people who are not really qualified to do this in
the field. We have begun building these once again for this
one customer on pre-wired systems. We doubled the price though
since we were losing money at the old price. We do not know if
we will open it up for sales as a kit to be installed in the
field? For a competent installer (old off-grid guys), it is a
snap. We welcome your comments as we pride ourselves on coming
up with solutions for problems. This one turned out to be
tough even for us, but once we had it all figured out, it
became a nice product, but had a bad history of support due to
a moving target of how to make it work. <o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Robin
Gudgel<o:p></o:p></span></p>
<span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">MidNite
Solar</span><br>
<br>
<br>
<br>
On 6/9/2015 8:33 PM, Gary Willett wrote:<br>
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<blockquote cite="mid:5577AFFF.9010808@IcarusSolarServices.com"
type="cite">Fellow Esteemed Wrenches:
<br>
<br>
Working on a on-grid battery back-up system with generator where
client wants to use SMA Sunny Island / Sunny Boy.
<br>
<br>
Anybody know where to find the MidNite Solar SMA Relay Board
(MNSMARB), or a functional equivalent? It is intended to be
installed inside the MidNite SMA E-Panel.
<br>
<br>
I searched the MidNite site and found the attached document, but
no other info.
<br>
<br>
Thanks!
<br>
<br>
Gary Willett PE
<br>
Icarus Engineering / Solar Services
<br>
</blockquote>
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