[RE-wrenches] 72 cell micro inverters

[jay]

This and the Solar Edge are interesting options.

This system is really small, probably just 6 modules, so the Solar edge won’t work as it needs 8 minimum.
The larger TL inverter starts to get expensive, and with any shading I”m going to get outside the min voltage window pretty quickly.
The APS micros, are a good price point, do two module with one inverter ( and hopefully two MPPT but I don’t know about that).  And even with the optional data interface, its still less expensive than the Galvo 1.5.

As  backround, when I installed it, the GC-1000  ( 48vdc input) might have been the only inverter.  Or around the same time was maybe the trace, and a bit later the SB2500 came out.

thanks

jay



> On Oct 26, 2015, at 7:24 AM, frenergy <frenergy at psln.com> wrote:
> 
> Jay,
>  
>         One other consideration to mitigate morning/afternoon shading is to wire the array one string east side, one string west side and use an SMA TL with its 2 separate tracking inputs.  This is assuming your shading is from east and west located obstacles...as the morning sun hits the west string, you'll have full output in that string, esp with opti-track. Same in afternoon.  Not quite as granular as micros or optimizers but an option. Simple.  You'll also have 1500 watts of power without batteries when the grid fails.
>  
> Bill
> Feather River Solar Electric
>> ----- Original Message ----- 
>> From: Kirpal Khalsa <mailto:solarworks at gmail.com>
>> To: RE-wrenches <mailto:re-wrenches at lists.re-wrenches.org>
>> Sent: Monday, October 26, 2015 4:32 AM
>> Subject: Re: [RE-wrenches] 72 cell micro inverters
>> 
>> Jay you also might consider Solar Edge optimizers for partial shade mitigation.  Same effect as micro inverters...easy to implememt.
>> Kirpal Khalsa 
>> Oregon Solarworks
>> On Oct 26, 2015 12:48 AM, "jay" <jay.peltz at gmail.com <mailto:jay.peltz at gmail.com>> wrote:
>>> Thanks all for the great info.
>>> 
>>> I’ve got some pretty good morning afternoon shading so micros make better sense than the Galvo, but I”ll check that out.
>>> And I’ve got some really great pricing on some 72 cell 280 watt modules.  
>>> 
>>> Yea I’ve heard the ABB are a nightmare.
>>> I’ve got no experience or info on the APS.  Anybody else have any besides Benn?
>>> 
>>> Thanks all,
>>> 
>>> jay
>>> 
>>> 
>>>> On Oct 25, 2015, at 8:50 AM, Bill Hennessy <bill at berkssolar.com <mailto:bill at berkssolar.com>> wrote:
>>>> 
>>>> We would NOT recommend the ABB micro 3.0 inverters because of the problems with their wireless interface and router incompatibility. 
>>>> The install of 48 Suntech 300w modules went well, but there were 30 hours involved in hooking up the communications interface.  
>>>> In the end, ABB tech support had us abandon the normal interface for a signal of over wire home-brew set up.
>>>>  
>>>> Bill Hennessy
>>>> Berks Solar, LLC
>>>> 371 Centennial Rd
>>>> Mertztown, PA 19539
>>>> 
>>>> o 610 682 4300 <tel:610%20682%204300>
>>>> c 484 560 4666 <tel:484%20560%204666>
>>>> NABCEP certified installer
>>>> PA contractor #44411
>>>> www.berkssolar.com <http://www.berkssolar.com/>
>>>> From: jay <jay.peltz at gmail.com <mailto:jay.peltz at gmail.com>>
>>>> To: RE-wrenches <re-wrenches at lists.re-wrenches.org <mailto:re-wrenches at lists.re-wrenches.org>> 
>>>> Sent: Friday, October 23, 2015 12:03 PM
>>>> Subject: [RE-wrenches] 72 cell micro inverters
>>>> 
>>>> HI All,
>>>> 
>>>> What is the recommendation for 72 cell 280 watt  120/240v micro inverters?
>>>> 
>>>> Enphase don’t have one.
>>>> 
>>>> This is on my old house.  Still has a AEI-GC-1000.
>>>> The modules have got to come off as well as they are old mobil’s.
>>>> All just about dead.
>>>> 
>>>> I’ve got a good deal on 72cell, 280 watt modules, so trying to find a micro for that or maybe a small 
>>>> And its only for 1500-2000 watts max.  Thats all I can fit.
>>>> 
>>>> thanks
>>>> jay
>>>> 
> 
> 

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