[RE-wrenches] Using legacy modules on micro-inverters

[August Goers]

All -

If you haven't already seen it, you might want to try playing with the
numbers on Enphase's online calculator:

http://enphase.com/module-compatibility-calculator-m250-update/

-August

*August Goers*

Principal

Luminalt Energy Corporation

o: 415.641.4000

m: 415.559.1525

www.luminalt.com




On Sat, Sep 28, 2013 at 6:45 AM, Jay Peltz <jay at asis.com> wrote:

> Hi Bill
>
> Is there a new M250?
> Enphase shows the 250 at 48vdc max and states 60 cell only modules.
>
> That would be nice if it did both
>
> Jay
>
> Peltz power.
>
>
>
> Sent from my iPhone
>
> On Sep 27, 2013, at 10:14 AM, "Bill Brooks" <billbrooks7 at yahoo.com> wrote:
>
> William,****
>
> ** **
>
> Just to add one more thing. I said that the M215 does not match well, but
> if you have them on hand, they would still work. You will probably power
> limit in the spring and fall, but the rest of the year you will probably do
> fine. The M250 has a higher operating voltage for 72-cell arrangements. The
> M215 is more suited for 60-cell modules and circuits.****
>
> ** **
>
> Bill.****
>
> ** **
>
> ** **
>
> *From:* re-wrenches-bounces at lists.re-wrenches.org [
> mailto:re-wrenches-bounces at lists.re-wrenches.org<re-wrenches-bounces at lists.re-wrenches.org>]
> *On Behalf Of *William Miller
> *Sent:* Thursday, September 26, 2013 10:01 PM
> *To:* RE-wrenches
> *Subject:* [RE-wrenches] Using legacy modules on micro-inverters****
>
> ** **
>
> Friends:****
>
> ** **
>
> I am trying to upgrade a long time off-grid client to a grid-connected
> installation.  They have a mix of Siemens PC4JF and Shell SQ-150P modules.
> It is my understanding that putting two of the PC4JFs in series is exactly
> one SQ-150.  I don’t have spec sheets for the PC4JFs but I am told they are
> an SP75.  If I use the data for the SP75 and multiply the voltages by two I
> get exactly a SQ-150P.****
>
> ** **
>
> Anyway, putting two 36 modules together makes one 72 cell module.  This
> would likely work with an Enphase M190 but those are no longer
> manufactured.  Same with the M215.  Power One makes a micro that meets the
> predicted voltage window.****
>
> ** **
>
> I did this a while ago with pairs of SR100s.  It worked great.  Anyone try
> this with even older modules, like those cited???****
>
> ** **
>
> Thanks in advance.****
>
> ** **
>
> William Miller****
>
> ** **
>
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