<html>
<head>
<meta content="text/html; charset=ISO-8859-1"
http-equiv="Content-Type">
</head>
<body bgcolor="#FFFFFF" text="#000000">
<div class="moz-cite-prefix"><br>
The MidNite Solar Birdhouses are being evaluated at UL right
now...<br>
<br>
Some inspectors are allowing it to be installed already though as
the<br>
combiners themselves are already listed.<br>
<br>
boB<br>
<span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">
</span><br>
On 5/22/2014 8:48 AM, Tump wrote:<br>
</div>
<blockquote cite="mid:622B0B6B-065F-4A14-A94D-17D8FDA94B5A@swnl.net"
type="cite">SMA will shut down w/ the removal of the meter.
Installing the inverter w/in the 10' area will meet this
requirement.<br>
<div>
<div>On May 21, 2014, at 9:48 PM, Jeffrey Quackenbush wrote:</div>
<br class="Apple-interchange-newline">
<blockquote type="cite">
<div>
<div style="color:#000; background-color:#fff;
font-family:HelveticaNeue, Helvetica Neue, Helvetica,
Arial, Lucida Grande, sans-serif;font-size:10pt">
<div class="" style=""><span class="" style="">I recently
took a code update course with the electrical
inspector in Andover MA, and he said that he is only
allowing micro-inverter systems in his jurisdiction at
the moment. </span></div>
<div style="color: rgb(0, 0, 0); font-size: 13px;
font-family: HelveticaNeue, 'Helvetica Neue', Helvetica,
Arial, 'Lucida Grande', sans-serif; background-color:
transparent; font-style: normal;" class=""><span
class="" style=""><br class="" style="">
</span></div>
<div style="color: rgb(0, 0, 0); font-size: 13px;
font-family: HelveticaNeue, 'Helvetica Neue', Helvetica,
Arial, 'Lucida Grande', sans-serif; background-color:
transparent;" class=""><span class="" style="">SolarEdge
and other auxiliary optimizers are not able to certify
that they will shut down within 10 seconds. I
understand that the manufacturers are working on this,
but I'm not sure about their timeframe. Most
jurisdictions in MA, I believe, <span
style="font-style: italic;" class="">are</span> accepting
SolarEdge or Tigo systems, but they don't comply at
the moment with the 10 second shut-down provision in
690.12 (2).</span></div>
<div style="color: rgb(0, 0, 0); font-size: 13px;
font-family: HelveticaNeue, 'Helvetica Neue', Helvetica,
Arial, 'Lucida Grande', sans-serif; background-color:
transparent; font-style: italic;" class=""><span
class="" style=""><br class="" style="">
</span></div>
<div style="color: rgb(0, 0, 0); font-size: 13px;
font-family: HelveticaNeue, 'Helvetica Neue', Helvetica,
Arial, 'Lucida Grande', sans-serif; background-color:
transparent;" class="">The inspector said that he is
interpreting 690.12 (1) to say that the means of
performing the shutdown should be within 10'/5' of the
array, so that means locating the shutdown means on the
roof in most cases. The last time I brought this up on
the Wrenches list, it was suggested installers could use
some kind of relay setup with an accessible activation
switch and a relay disconnect. However, 690.12 (5) says:
"Equipment that performs the rapid shutdown shall be
listed and identified". 690.12 (5) unfortunately doesn't
tell us what the equipment should be <span
style="font-style: italic;" class="">listed and
identified <span class="" style="">f</span>or.</span> It
could be listed and identified for the circuit
characteristics and shutdown time, or it could be listed
and identified for the requirements of 690.12 as a whole
function with its own UL specifications. It's possible
to find equipment for the former interpretation, but I'm
not aware of anything available for the latter (is
anyone writing a UL regime for this?). And I think that
the latter interpretation is reasonable, given the
ambiguity in the way the text is written, and what is
usually meant by "listed and identified" taken together.</div>
<div style="color: rgb(0, 0, 0); font-size: 13px;
font-family: HelveticaNeue, 'Helvetica Neue', Helvetica,
Arial, 'Lucida Grande', sans-serif; background-color:
transparent; font-style: italic;" class=""><br class=""
style="">
</div>
<div style="color: rgb(0, 0, 0); font-size: 13px;
font-family: HelveticaNeue, 'Helvetica Neue', Helvetica,
Arial, 'Lucida Grande', sans-serif; background-color:
transparent;" class="">I like micro-inverters for small
systems. And I like the SolarEdge model for larger
systems with weird layouts, shading issues, or a premium
on production. However, central inverters are<span
style="font-size: 10pt;" class="">, depending on the
configuration and size of the system,</span><span
style="background-color: transparent;" class=""> 0.05
$/W to 0.25 $/W less expensive than micro-inverters or
DC optimizer systems, and that increase in cost is
most likely to come out of the contractor's pocket. </span><span
style="background-color: transparent;">I also see this
affecting sales for companies producing central
inverters as the 2014 code rolls out across the
country. If someone has a solution for central
inverters under 690.12 when dealing with skeptical
AHJs, I'd appreciate hearing more about it.</span></div>
<div style="color: rgb(0, 0, 0); font-size: 13px;
font-family: HelveticaNeue, 'Helvetica Neue', Helvetica,
Arial, 'Lucida Grande', sans-serif; background-color:
transparent; font-style: normal;" class=""><span
style="background-color: transparent;"><br>
</span></div>
<div style="color: rgb(0, 0, 0); font-size: 13px;
font-family: HelveticaNeue, 'Helvetica Neue', Helvetica,
Arial, 'Lucida Grande', sans-serif; background-color:
transparent; font-style: normal;" class=""><span
style="background-color: transparent;">Regards,</span></div>
<div style="color: rgb(0, 0, 0); font-size: 13px;
font-family: HelveticaNeue, 'Helvetica Neue', Helvetica,
Arial, 'Lucida Grande', sans-serif; background-color:
transparent; font-style: normal;" class=""><span
style="background-color: transparent;">Jeffrey
Quackenbush</span></div>
<div style="color: rgb(0, 0, 0); font-size: 13px;
font-family: HelveticaNeue, 'Helvetica Neue', Helvetica,
Arial, 'Lucida Grande', sans-serif; background-color:
transparent; font-style: normal;" class=""><span
class="" style=""><br class="" style="">
<br>
</span></div>
<div class="yahoo_quoted" style="display: block;">
<div style="font-family: HelveticaNeue, Helvetica Neue,
Helvetica, Arial, Lucida Grande, sans-serif;
font-size: 10pt;" class="">
<div style="font-family: HelveticaNeue, Helvetica
Neue, Helvetica, Arial, Lucida Grande, sans-serif;
font-size: 12pt;" class="">
<div dir="ltr" class="" style=""> <font class=""
style="" face="Arial" size="2"> On Tuesday, May
20, 2014 2:07 PM, Phil Forest <<a
moz-do-not-send="true"
href="mailto:pforest@southmountain.com">pforest@southmountain.com</a>>
wrote:<br class="" style="">
</font> </div>
<blockquote style="border-left: 2px solid rgb(16,
16, 255); margin-left: 5px; margin-top: 5px;
padding-left: 5px;" class=""> <br class=""
style="">
<br class="" style="">
<div class="" style="">
<div id="yiv8135635870" class="" style="">
<div class="" style="">
<div class="" style="">All in all, not
longer, glad to say. </div>
<div class="" style="">Strings can have more
modules, so there's fewer home runs.
Optimizer wires are longer than module
wires, they even reach when installing
modules in landscape, so fewer jumpers. Be
thoughtful when mounting optimizers to
rails so it's easy to connect after module
is clamped down. Bolts that attach
optimizers slide into rails from the end
(UniRac SM type rails). You supply your
own nuts and bolts. They supply a star
washer for bonding optimizer to rail for
EG. <br class="" style="" clear="none">
We mounted optimizers to modules on one
job when using UniRac Sunframe. SunFrame
is a pain in my neck, optimizers or not. <br
class="" style="" clear="none">
<div class="" style="">Phil Forest</div>
<div class="" style="">South Mountain
Company</div>
</div>
<div class="" id="yiv8135635870yqt93799"
style="">
<div class="" style=""><br class=""
style="" clear="none">
On May 20, 2014, at 1:33 PM, Will White
<<a moz-do-not-send="true"
rel="nofollow" shape="rect"
ymailto="mailto:William.White@rgsenergy.com"
target="_blank"
href="mailto:William.White@rgsenergy.com"
class="" style="">William.White@rgsenergy.com</a>>
wrote:<br class="" style="" clear="none">
<br class="" style="" clear="none">
</div>
<blockquote type="cite" class="" style="">
<div class="" style="">
</div>
</blockquote>
</div>
</div>
<div class="" id="yiv8135635870yqt38213"
style="">
<style class="" style="">#yiv8135635870 #yiv8135635870 --
_filtered #yiv8135635870 {panose-1:2 4 5 3 5 4 6 3 2 4;}
_filtered #yiv8135635870 {font-family:Calibri;panose-1:2 15 5 2 2 2 4 3 2 4;}
#yiv8135635870
#yiv8135635870 p.yiv8135635870MsoNormal, #yiv8135635870 li.yiv8135635870MsoNormal, #yiv8135635870 div.yiv8135635870MsoNormal
{margin:0in;margin-bottom:.0001pt;font-size:11.0pt;}
#yiv8135635870 a:link, #yiv8135635870 span.yiv8135635870MsoHyperlink
{color:blue;text-decoration:underline;}
#yiv8135635870 a:visited, #yiv8135635870 span.yiv8135635870MsoHyperlinkFollowed
{color:purple;text-decoration:underline;}
#yiv8135635870 p
{margin-right:0in;margin-left:0in;font-size:12.0pt;}
#yiv8135635870 span.yiv8135635870EmailStyle18
{color:windowtext;}
#yiv8135635870 span.yiv8135635870EmailStyle19
{color:#1F497D;}
#yiv8135635870 span.yiv8135635870EmailStyle20
{color:windowtext;font-weight:normal;font-style:normal;text-decoration:none none;}
#yiv8135635870 span.yiv8135635870EmailStyle21
{color:windowtext;font-weight:normal;font-style:normal;text-decoration:none none;}
#yiv8135635870 .yiv8135635870MsoChpDefault
{font-size:10.0pt;}
_filtered #yiv8135635870 {margin:1.0in 1.0in 1.0in 1.0in;}
#yiv8135635870 div.yiv8135635870WordSection1
{}
#yiv8135635870 </style>
<div class="" style="">
<div class="" style="">
<div class="" style="">Phil,</div>
<div class="" style=""> </div>
<div class="" style="">Do you find that
the DC optimizer adds to the amount of
time on an install?</div>
<div class="" style=""> </div>
<div class="" style="">Thanks,</div>
<div class="" style="">Will</div>
<div class="" style=""> </div>
<div class="" style="">
<div
style="border:none;border-top:solid
#E1E1E1 1.0pt;padding:3.0pt 0in 0in
0in;" class="">
<div class="" style=""><b class=""
style="">From:</b> RE-wrenches [<a
moz-do-not-send="true"
rel="nofollow" shape="rect"
ymailto="mailto:re-wrenches-bounces@lists.re-wrenches.org"
target="_blank"
href="mailto:re-wrenches-bounces@lists.re-wrenches.org"
class="" style="">mailto:re-wrenches-bounces@lists.re-wrenches.org</a>]
<b class="" style="">On Behalf Of
</b>Phil Forest<br class=""
style="" clear="none">
<b class="" style="">Sent:</b>
Tuesday, May 20, 2014 1:26 PM<br
class="" style="" clear="none">
<b class="" style="">To:</b>
RE-wrenches<br class="" style=""
clear="none">
<b class="" style="">Subject:</b>
Re: [RE-wrenches] 2014 NEC</div>
</div>
</div>
<div class="" style=""> </div>
<div class="" style="">
<div class="" style="">Will,<span
style="font-size:12.0pt;" class=""></span></div>
</div>
<div class="" style="">
<div class="" style="">No problems
with inspectors for us in MA,
regarding rapid shutdown, since we
recently switched to using SolarEdge
central inverters with optimizer
under each module, for roof mounted
installs. </div>
</div>
<div class="" style="">
<div class=""
style="margin-bottom:12.0pt;">So far
so good. They seem well made and
engineered. Tip: you have to enable
the arc fault protection when
commissioning, ships disabled. </div>
<div class="" style="">
<div class="" style="">Phil Forest</div>
</div>
<div class="" style="">
<div class="" style="">South
Mountain Company</div>
</div>
</div>
<div class="" style="">
<div class=""
style="margin-bottom:12.0pt;"><br
class="" style="" clear="none">
On May 20, 2014, at 10:59 AM, Will
White <<a moz-do-not-send="true"
rel="nofollow" shape="rect"
ymailto="mailto:William.White@rgsenergy.com"
target="_blank"
href="mailto:William.White@rgsenergy.com"
class="" style="">William.White@rgsenergy.com</a>>
wrote:</div>
</div>
<blockquote
style="margin-top:5.0pt;margin-bottom:5.0pt;"
class="">
<div class="" style="">
<div class="" style="">Wrenches,</div>
<div class="" style=""> </div>
<div class="" style="">Is anyone
else having problems with
inspectors and the 2014 NEC? In
Mass we’re having all kinds of
issues with inspectors
requiring/allowing an array of
different things for 690.12 rapid
shut down ranging from roof top
disconnects, disconnects on the
side of a house 20’ up,
disconnects in attics, or only
disconnects that can be activated
on the ground. It varies between
inspectors.</div>
<div class="" style=""> </div>
<div class="" style="">We’re also
having problems with one inspector
requiring arc fault breakers on
Enphase even though there are no
UL listed arc fault breakers that
can be back fed or he wants us to
run the trunk cable in a raceway.
</div>
<div class="" style=""> </div>
<div class="" style="">It’s getting
very difficult to install in Mass.</div>
<div class="" style=""> </div>
<div class="" style="">Thanks,</div>
<div class="" style="">Will</div>
<div class="" style=""> </div>
<table class=""
style="margin-left:4.5pt;"
cellpadding="0" cellspacing="0"
border="0">
<tbody class="" style="">
<tr class="" style="">
<td colspan="1" rowspan="1"
style="width:981.75pt;padding:0in
0in 0in 0in;" class=""
valign="top" width="1309">
<div class="" style=""><b
class="" style=""><span
style="font-size:10.0pt;" class="">Will White</span></b><span
style="font-size:12.0pt;"
class=""><br class=""
style="" clear="none">
</span><span
style="font-size:9.0pt;"
class="">Operations
Manager - New England
</span></div>
<div class="" style=""><span
style="font-size:9.0pt;"
class="">RGS Energy</span></div>
</td>
</tr>
<tr class="" style="">
<td colspan="1" rowspan="1"
style="width:981.75pt;padding:5.25pt
0in 3.0pt 0in;" class=""
valign="top" width="1309">
<br>
</td>
</tr>
<tr class="" style="">
<td colspan="1" rowspan="1"
style="width:981.75pt;padding:0in
0in 0in 0in;" class=""
valign="top" width="1309">
<div class="" style=""><span
style="font-size:9.0pt;"
class="">64 Main St.
</span><span
style="font-size:7.5pt;"
class="">|</span><span
style="font-size:9.0pt;"
class="">Montpelier, VT
05602<br class=""
style="" clear="none">
tel 802.223.7804 </span><span
style="font-size:7.5pt;"
class="">|</span><span
style="font-size:9.0pt;"
class=""> mobile
802.234.3167
</span><span
style="font-size:7.5pt;"
class="">|</span><span
style="font-size:9.0pt;"
class=""> fax
802.223.8980</span></div>
</td>
</tr>
<tr class="" style="">
<td colspan="1" rowspan="1"
style="width:981.75pt;padding:3.75pt
0in 0in 0in;" class=""
valign="top" width="1309">
<div class="" style=""><b
class="" style=""><span
style="font-size:9.0pt;color:#FCB033;" class=""><a
moz-do-not-send="true"
rel="nofollow"
shape="rect"
target="_blank"
href="http://www.rgsenergy.com/"
class="" style=""><span
style="color:#FCB033;text-decoration:none;" class="">RGSEnergy.com</span></a>
</span></b><b class=""
style=""><span
style="font-size:7.5pt;color:#FCB033;"
class="">| <a
moz-do-not-send="true"
rel="nofollow"
shape="rect"
ymailto="mailto:william.white@rgsenergy.com"
target="_blank"
href="mailto:william.white@rgsenergy.com"
class="" style="">
<span
style="color:#FCB033;text-decoration:none;"
class="">william.white@rgsenergy.com</span></a>
</span></b></div>
</td>
</tr>
<tr class="" style="">
<td colspan="1" rowspan="1"
style="width:981.75pt;padding:6.0pt
0in 0in 0in;" class=""
valign="top" width="1309"><br>
</td>
</tr>
</tbody>
</table>
<div class="" style=""> </div>
</div>
</blockquote>
</div>
</div>
</div>
</div>
</div>
</blockquote>
</div>
</div>
</div>
</div>
</div>
</blockquote>
</div>
<div>
<span class="Apple-style-span" style="border-collapse: separate;
color: rgb(0, 0, 0); font-family: Times; font-style: normal;
font-variant: normal; font-weight: normal; letter-spacing:
normal; line-height: normal; orphans: 2; text-align:
-webkit-auto; text-indent: 0px; text-transform: none;
white-space: normal; widows: 2; word-spacing: 0px;
-webkit-border-horizontal-spacing: 0px;
-webkit-border-vertical-spacing: 0px;
-webkit-text-decorations-in-effect: none;
-webkit-text-size-adjust: auto; -webkit-text-stroke-width:
0px; font-size: medium; ">
<div>
<blockquote type="cite">
<div style="word-wrap: break-word; -webkit-nbsp-mode:
space; -webkit-line-break: after-white-space; ">
<div><span class="Apple-style-span"
style="border-collapse: separate; font-family:
Times; font-style: normal; font-variant: normal;
font-weight: normal; letter-spacing: normal;
line-height: normal; orphans: 2; text-align:
-webkit-auto; text-indent: 0px; text-transform:
none; white-space: normal; widows: 2; word-spacing:
0px; -webkit-border-horizontal-spacing: 0px;
-webkit-border-vertical-spacing: 0px;
-webkit-text-decorations-in-effect: none;
-webkit-text-size-adjust: auto;
-webkit-text-stroke-width: 0px; font-size: medium; "><span
class="Apple-style-span" style="border-collapse:
separate; font-family: Times; font-style: normal;
font-variant: normal; font-weight: normal;
letter-spacing: normal; line-height: normal;
orphans: 2; text-align: -webkit-auto; text-indent:
0px; text-transform: none; white-space: normal;
widows: 2; word-spacing: 0px;
-webkit-border-horizontal-spacing: 0px;
-webkit-border-vertical-spacing: 0px;
-webkit-text-decorations-in-effect: none;
-webkit-text-size-adjust: auto;
-webkit-text-stroke-width: 0px; font-size: medium;
">
<div style="word-wrap: break-word;
-webkit-nbsp-mode: space; -webkit-line-break:
after-white-space; "><span
class="Apple-style-span" style="font-family:
'Times New Roman'; font-size: 12px; "><b><a
moz-do-not-send="true"
href="blocked::mailto:Tump@swnl.net%22%20%5Co%20%22blocked::mailto:Tump@swnl.net">Tump@swnl.net</a></b><span
style="font: normal normal normal
12px/normal Arial; "> </span> <a
moz-do-not-send="true"
href="blocked::http://www.swnl.net/%22%20%5Co%20%22blocked::http://www.swnl.net/"><b>www.SWNL.net</b></a></span><span
class="Apple-style-span"
style="border-collapse: separate; font-family:
Helvetica; font-style: normal; font-variant:
normal; letter-spacing: normal; line-height:
normal; orphans: 2; text-align: -webkit-auto;
text-indent: 0px; text-transform: none;
white-space: normal; widows: 2; word-spacing:
0px; -webkit-border-horizontal-spacing: 0px;
-webkit-border-vertical-spacing: 0px;
-webkit-text-decorations-in-effect: none;
-webkit-text-size-adjust: auto;
-webkit-text-stroke-width: 0px; font-size:
medium; ">
<div style="word-wrap: break-word;
-webkit-nbsp-mode: space;
-webkit-line-break: after-white-space; "><span
class="Apple-style-span"
style="border-collapse: separate;
font-family: Helvetica; font-style:
normal; font-variant: normal;
letter-spacing: normal; line-height:
normal; orphans: 2; text-align:
-webkit-auto; text-indent: 0px;
text-transform: none; white-space: normal;
widows: 2; word-spacing: 0px;
-webkit-border-horizontal-spacing: 0px;
-webkit-border-vertical-spacing: 0px;
-webkit-text-decorations-in-effect: none;
-webkit-text-size-adjust: auto;
-webkit-text-stroke-width: 0px; font-size:
medium; ">
<div style="word-wrap: break-word;
-webkit-nbsp-mode: space;
-webkit-line-break: after-white-space; ">
<div>
<div style="margin-top: 0px;
margin-right: 0px; margin-bottom:
0px; margin-left: 0px; font: normal
normal normal 12px/normal 'Times New
Roman'; "> <span
style="font-weight: normal; color:
rgb(45, 44, 250); "> </span><span
style="font-weight: normal; font:
normal normal normal 18px/normal
'Times New Roman'; color: rgb(45,
44, 250); ">Solarwinds
Northernlights</span> <b
style="font-weight: normal; "><i> </i></b></div>
<div style="font-weight: normal;
margin-top: 0px; margin-right: 0px;
margin-bottom: 0px; margin-left:
0px; font: normal normal normal
10px/normal 'Times New Roman'; "><span
style="font: normal normal normal
12px/normal 'Times New Roman'; "><b><i>
Serving Mid Coast Maine
& Northern California</i></b></span><span
style="font: normal normal normal
10px/normal Arial; "><b><i><br>
</i></b></span><b><i>
207-832-7574 Cl.
610-517-8401 </i></b></div>
<div style="font-weight: normal;
margin-top: 0px; margin-right: 0px;
margin-bottom: 0px; margin-left:
0px; font: normal normal normal
12px/normal 'Times New Roman'; "><span
style="color: rgb(45, 44, 250); "><b><i>
</i></b></span><b><i>Blair
"TUMP" May</i></b></div>
<p style="font-weight: normal;
margin-top: 5px; margin-right: 0px;
margin-bottom: 5px; margin-left:
0px; font: normal normal normal
12px/normal 'Times New Roman';
color: rgb(0, 144, 25); "><span
style="color: rgb(0, 0, 0); "><b><i>
******** MAINE'S
CHARTER ********<br>
</i></b></span><b><i>
</i></b><span
style="text-decoration: underline;
"><b><i> NABCEP "Certified PV
Installer"</i></b></span><span
style="text-decoration: underline;
color: rgb(0, 0, 0); "><b><i> <br>
</i></b></span><span
style="color: rgb(0, 0, 0); "><b><i> <br>
********
MAINE'S CHARTER ********<br>
</i></b></span><span
style="text-decoration: underline;
"><b><i> Trace Xantrex
"Certified" Dealer /
Installer"</i></b></span></p>
<div style="font-weight: normal;
margin-top: 0px; margin-right: 0px;
margin-bottom: 0px; margin-left:
0px; font: normal normal normal
12px/normal 'Times New Roman';
min-height: 15px; "><br>
</div>
</div>
</div>
</span></div>
</span></div>
</span></span></div>
</div>
</blockquote>
</div>
</span><br class="Apple-interchange-newline">
</div>
<br>
</blockquote>
<br>
</body>
</html>