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<p class=MsoNormal><span style='color:#1F497D'>We are opting more and more for
supply side connections in these situations (assuming convincing the customer
that an upgrade to a 200A service/panel is not an option). We have yet to run
into an AHJ that cannot be made to see this is a good option and we use Ilsco
Kup-L-Taps to pierce the main conductors inside the load center, prior to their
landing on the main breaker.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>-Glenn Burt<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Alteris Renewables, Inc.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
re-wrenches-bounces@lists.re-wrenches.org
[mailto:re-wrenches-bounces@lists.re-wrenches.org] <b>On Behalf Of </b>Dave
Palumbo<br>
<b>Sent:</b> Sunday, October 31, 2010 2:35 PM<br>
<b>To:</b> 'RE-wrenches'<br>
<b>Subject:</b> Re: [RE-wrenches] 3.7kW grid tie<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>AC Point of Connection could be to a backfed 20A DP breaker
in the existing GE TM3210CCU load center (100A MB with 100A busbar) if the SMA
SB3800 inverter was still available. But a SB4000 requires a 25A breaker which
violates the 120% rule with the existing panel.<o:p></o:p></p>
<p class=MsoNormal>Comments on the options below. <o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>#1) Go with another 240v grid tie inverter in the 3800W
range, so we can use a 20 Amp breaker. I see PV Powered and Kaco have
3500’s listed. Any 3.7, or 3.8kW inverters?<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>#2) Is it possible to either, change out the Main Breaker in
the above GE load center to a lower amperage MB, or add a Plug In Breaker.
There is a GE “feeder type” breaker # THQL2190 (90 A DP). Could we
use this as the main breaker for the load center above? It is listed as a
10KAIC breaker.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>#3) Swap out existing 32 space load center and replace with
150AML panel with 100A MB kit.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Thanks,<o:p></o:p></p>
<p class=MsoNormal>Dave Palumbo<o:p></o:p></p>
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