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
To: RE-wrenches
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" <[email protected]> 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 <[email protected]> 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
c 484 560 4666
NABCEP certified installer
PA contractor #44411
www.berkssolar.com
--------------------------------------------------------------------------
From: jay <[email protected]>
To: RE-wrenches <[email protected]>
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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