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<div class="moz-cite-prefix">Midnite Solar is developing what will
in essence be an "E-Panel for the Sunny Island". I believe that it
is in partnership with SMA-America, given the need for so many
third-party components in Sunny Island systems. Midnite is also
developing a transformer under the same auspices. My understanding
is that products will be shipping in 4-6 months.<br>
Allan<br>
<br>
<div class="moz-signature">
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charset=ISO-8859-1">
<title></title>
<font face="Times New Roman, Times, serif"><b>Allan Sindelar</b></font><br>
<small><a href="mailto:Allan@positiveenergysolar.com"><font
color="#000099" face="Times New Roman, Times, serif"><u>Allan@positiveenergysolar.com</u></font></a></small><font
face="Times New Roman, Times, serif"><br>
<span style="font-size: 10pt;">NABCEP Certified Photovoltaic
Installer<br>
NABCEP Certified Technical Sales Professional<br>
New Mexico EE98J Journeyman Electrician<br>
Founder and Chief Technology Officer<br>
<b>Positive Energy, Inc.</b><br>
3209 Richards Lane (note new address)<br>
Santa Fe, New Mexico 87507<br>
<b>505 424-1112</b><br>
<a href="http://www.positiveenergysolar.com/"
target="_blank"><u>www.positiveenergysolar.com</u></a><o:p></o:p></span></font>
<p class="MsoNormal" style="margin-right: 722.25pt;"><span
style="font-size: 10pt;"><font face="Times New Roman, Times,
serif"><st1:place w:st="on"><st1:city w:st="on"></st1:city><st1:state
w:st="on"></st1:state><st1:postalcode w:st="on"></st1:postalcode></st1:place></font><b
style=""><br>
</b></span></p>
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On 10/5/2012 9:13 AM, August Goers wrote:<br>
</div>
<blockquote
cite="mid:bf7eb0d78385c20f3de0876859a96760@mail.gmail.com"
type="cite">
<pre wrap="">I'm looking forward to checking out the SMA Smartformer. We're sending one
of our guys to SMA training later this month to learn more about it is
depth. Up to date, we used the Outback PSX-240 like the one found here to
120/240 step up:
<a class="moz-txt-link-freetext" href="http://www.altestore.com/store/Enclosures-Electrical-Safety/Miscellaneous">http://www.altestore.com/store/Enclosures-Electrical-Safety/Miscellaneous</a>-
Electrical-Parts/Transformers/Outback-PSX-240-Autotransformer-with-Fan/p40
89/
My experience with a handful of Sunny Island backup systems has been
really good. The Sunny Island is a very solid piece of equipment and is
easy to program if the plan is properly thought through and everything is
wired properly.
Good luck with your project! -August
-----Original Message-----
From: <a class="moz-txt-link-abbreviated" href="mailto:re-wrenches-bounces@lists.re-wrenches.org">re-wrenches-bounces@lists.re-wrenches.org</a>
[<a class="moz-txt-link-freetext" href="mailto:re-wrenches-bounces@lists.re-wrenches.org">mailto:re-wrenches-bounces@lists.re-wrenches.org</a>] On Behalf Of Dave Click
Sent: Friday, October 05, 2012 6:01 AM
To: RE-wrenches
Subject: Re: [RE-wrenches] SunnyIsland - was AC coupling and Outback
inverters
Check out the new SMA Smartformer, though I'm not sure whether it's
actually shipping yet. I'm thinking about this for my house eventually
(SB5000US).
<a class="moz-txt-link-freetext" href="http://www.sma-america.com/en_US/products/off-grid-and-back-up-solutions/s">http://www.sma-america.com/en_US/products/off-grid-and-back-up-solutions/s</a>
martformer-for-sunny-island.html
Alternatively, the new SMA TL inverters (at least the 3, 4, and 5kW units
according to the press release) have an "Emergency Power Supply"
function that can provide backup power (12A?) during the day when the grid
is down. This may meet your customer's requirements. No batteries
required, though since the TLs require ungrounded arrays, you may need to
rewire the existing array to be compliant with 690.35 (PV Wire or
raceway).
On 2012/10/5 8:41, Kirk Herander wrote:
</pre>
<blockquote type="cite">
<pre wrap="">One Question: Output of the SunnyBoy is 240vac. So this is fed to the
critical load panel, of which the SunnyIsland 120 vac output is fed to.
So we need a 120/240 step up transformer between the SunnyIsland and
the critical load panel to fully take advantage of the Sunnyboy array
for battery charging, correct?.
Kirk Herander
VT Solar, LLC
dba Vermont Solar Engineering
NABCEP^TM Certified installer Charter Member
NYSERDA-eligible Installer
VT RE Incentive Program Partner
802.863.1202
*From:*re-wrenches-bounces@lists.re-wrenches.org
[<a class="moz-txt-link-freetext" href="mailto:re-wrenches-bounces@lists.re-wrenches.org">mailto:re-wrenches-bounces@lists.re-wrenches.org</a>] *On Behalf Of
*David Katz
*Sent:* Friday, October 05, 2012 2:11 AM
*To:* RE-wrenches
*Subject:* Re: [RE-wrenches] AC coupling and Outback inverters
Hi Kirk,
All of the Outback inverters will work AC coupled (GT and FX) as will
any bi-directional H-bridge type inverter. I have used old Trace
SW's, SunnyIsland, Apollo TSW, Magnum AE and now I am using an Outback
Radian to do exactly what you are talking about. I have 6 kW of grid
tie inverter and an additional 4kw of modules running through a
Xantrex 600 volt charge controller to the batteries that the Radian
runs on. It all works flawless as long as you have a provision for
protecting the batteries when the gid is down and the grid-tie PV
system is making more power than the loads are using.
If the customer has SMA inverters, I would recommend using a
SunnyIsland because the battery control when the grid goes down is so
</pre>
</blockquote>
<pre wrap="">elegant.
</pre>
<blockquote type="cite">
<pre wrap="">Everything else is a bit of a kludge.
David Katz
CTO & Founder
AEE Solar Inc
P: 707 825-1200
F: 707 825-1202
<a class="moz-txt-link-abbreviated" href="mailto:dkatz@aeesolar.com">dkatz@aeesolar.com</a> <a class="moz-txt-link-rfc2396E" href="mailto:dkatz@aeesolar.com"><mailto:dkatz@aeesolar.com></a>
<a class="moz-txt-link-abbreviated" href="http://www.aeesolar.com">www.aeesolar.com</a> <a class="moz-txt-link-rfc2396E" href="http://www.aeesolar.com"><http://www.aeesolar.com></a>
*From:*re-wrenches-bounces@lists.re-wrenches.org
<a class="moz-txt-link-rfc2396E" href="mailto:re-wrenches-bounces@lists.re-wrenches.org"><mailto:re-wrenches-bounces@lists.re-wrenches.org></a>
[<a class="moz-txt-link-freetext" href="mailto:re-wrenches-bounces@lists.re-wrenches.org">mailto:re-wrenches-bounces@lists.re-wrenches.org</a>]
<a class="moz-txt-link-rfc2396E" href="mailto:[mailto:re-wrenches-bounces@lists.re-wrenches.org]"><mailto:[mailto:re-wrenches-bounces@lists.re-wrenches.org]></a> *On Behalf
Of *Kirk Herander
*Sent:* Thursday, October 04, 2012 2:11 PM
*To:* RE-wrenches
*Subject:* [RE-wrenches] AC coupling and Outback inverters
I have AC-coupled an Outback quad-stack with multiple SunnyBoy 6000US
inverters and it's been running fine for 4 years. I used the off-grid
version of Outbacks.
Now I have an application where a customer wants to add battery backup
to an existing SunnyBoy 5000US system. And expand his array by a
couple KW. So I'm thinking of using a GT Outback w/ batteries to
handle the critical loads and feed the extra 2kw of PV (charging the
batteries through an MX60) to the grid. And I'd like to AC-couple the
SunnyBoy so the original 5 kw array can also charge the batteries, BUT
I remember, at least I think so, that the GT inverter cannot be
AC-coupled, only the off-grid version. Is this correct? Thanks.
Kirk Herander
VT Solar, LLC
dba Vermont Solar Engineering
NABCEP^TM Certified installer Charter Member
NYSERDA-eligible Installer
VT RE Incentive Program Partner
802.863.1202
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