[RE-wrenches] Combining Multiple Inverters

[Mark Westbrock]

I agree that the exact placarding will depend on your AHJ, but you will
certainly want one that says something like "This breaker panel is for
combining solar inverter outputs.  Do not add any additional breakers or
make any circuit connections".

----
*Mark Westbrock*
Field Manager & Employee-Owner
NM EE98J Journeyman Electrician
NABCEP Certified PV Installation Professional
NABCEP Certified PV Technical Sales


<http://positiveenergysolar.com/>

Positive Energy, Inc.
510 S. Main St.
Las Cruces, NM 88001
office: 575-524-2030
cell: 575-640-2432
mw at positiveenergysolar.com <westbrock at positiveenergysolar.com>
www.positiveenergysolar.com



  <http://www.nabcep.org/installer-locator?state=NM>
<http://www.nabcep.org/installer-locator?state=NM>
<http://www.solarreviews.com/installers/positive-energy-solar/>
<http://www.bcorporation.net/>


On Fri, Jul 11, 2014 at 3:45 PM, Jason Szumlanski <jason at fafcosolar.com>
wrote:

> I'd spring a few extra bucks for the QO line of panels. Better bus bar,
> better breakers, more common breakers (availability), etc.​
>
> To answer your question, it depends on the interconnection method. Load
> side? Line side? Fusible disconnect or safety switch ahead of it? And some
> jurisdictions have their own opinion.​
>
>
> On Thu, Jul 10, 2014 at 5:08 PM, Corey Shalanski <
> cshalanski at joule-energy.com> wrote:
>
>> Wrenches,
>>
>> We have reevaluated our approach to combining multiple inverters and have
>> settled on a SqD HOM612L100RB as a suitable solution - it is readily
>> available from our local supply house for ~$25 and accommodates up to three
>> full-size 2-pole breakers.
>>
>> What - if any - labels do you install on these panels: "AC (Solar)
>> Combiner Panel"? 705.12(D)(4)? Other recommendations?
>>
>> Thanks.
>>
>> --
>> Corey Shalanski
>> Joule Energy
>> New Orleans, LA
>> ᐧ
>>
>>
>> On Fri, Jun 27, 2014 at 12:41 PM, <
>> re-wrenches-request at lists.re-wrenches.org> wrote:
>>
>>>
>>> Message: 6
>>> Date: Fri, 27 Jun 2014 12:41:52 -0400
>>> From: Jason Szumlanski <jason at fafcosolar.com>
>>> To: RE-wrenches <re-wrenches at lists.re-wrenches.org>
>>> Subject: Re: [RE-wrenches] Combining Multiple Inverters
>>> Message-ID:
>>>         <
>>> CAJJtG3qZAXb-UGKKoTUPPtD81ncnxv0uZiD_FRJfaP5jo4FdSQ at mail.gmail.com>
>>> Content-Type: text/plain; charset="utf-8"
>>>
>>> Dave,
>>>
>>> I looked at the BR24L70RP a while back. It's really a 2-space, 4 cuircuit
>>> panel. I think my conclusion was you actually need a single quadplex
>>> breaker with common trip center and outer breakers to get (2) 2-pole
>>> breaker functionality. The quadplex breakers come in a variety of mixed
>>> rating (i.e. 15A center and 20A outer breakers). They are not readily
>>> stocked and not cheap. We stuck with Sq D QO load centers for that
>>> reason.
>>>
>>> Am I missing something?
>>>
>>>
>>> Jason Szumlanski
>>>
>>
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