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

[Jay]

Nope wasn't in search when I had flicker. 
If the loads were greater than the enphase production then no flicker. 

If it was "charging" then there was flicker. 

My vfx 3524 is 8+ years old, but I don't think that would be a factor. 

Jay. 



Sent from my iPhone

> On Sep 21, 2015, at 12:46 PM, jerrysgarage01 <jerrysgarage01 at gmail.com> wrote:
> 
> Wrenches
> Check 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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