[RE-wrenches] AC-coupling Enphase/XW Causes Flickering of Lights

[jerrysgarage01]

WrenchesCheck and confirm that the OB is not set in search, yhis will cause issues like this.Jerry


Sent from my Verizon Wireless 4G LTE smartphone

-------- Original message --------
From: jay <jay.peltz at gmail.com> 
Date: 09/21/2015  6:58 AM  (GMT-10:00) 
To: RE-wrenches <re-wrenches at lists.re-wrenches.org> 
Subject: [RE-wrenches] AC-coupling Enphase/XW Causes Flickering of Lights 

Hi Matt,
I can’t tell you the reason but I had the same problem on my Outback VFX.I didn’t put it on a O scope, but sure looked like a 60 cycle flicker to me.  
On my system of 2 enphase, when the loads exceeded the output of the enphase the flicker when away.But only 2 isn’t very real world.
In the end it was just a test for me, and it didn’t work.
jay
peltz power
On Sep 21, 2015, at 6:18 AM, Matt Sherald <matt at getpimby.com> wrote:
I wired an Enphase string into my critical loads panel at my shop.  I was curious to see how it would work as I have customers with Enphase systems that occasionally contact me about adding a battery backup system.

Why do the fluorescent lights and LEDs flicker once the grid power is 
dropped.  The flicker seems to start as soon as there is enough sun to 
power up a few of the micros (they don't even have to be making much 
power).

The shop is grid-tied with a XW 4024 for battery backup.  Battery capacity is 370Ah.

I'd love an explanation as to why this happens and if there is a way to mitigate the flicker I would also love to hear it.

Many thanks!
-- 
Matt Sherald
PIMBY Energy, LLC
NABCEP Certified Solar PV Installer® 304-704-5943

www.getpimby.blogspot.com
www.getpimby.com




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