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

[b...@midnitesolar.com]

If the inverter were in search, I would think that there would be no AC 
power produced by

the micro inverters at all because of anti-islanding.

boB


On 9/21/2015 4:40 PM, Jay wrote:

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 > 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 >
Date: 09/21/2015 6:58 AM (GMT-10:00)
To: RE-wrenches >
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 > 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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Re: [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  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  
> Date: 09/21/2015 6:58 AM (GMT-10:00) 
> To: RE-wrenches  
> 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  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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[RE-wrenches] AC-coupling Enphase/XW Causes Flickering of Lights

[jay]

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

[Matt Sherald]

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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Re: [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  
Date: 09/21/2015  6:58 AM  (GMT-10:00) 
To: RE-wrenches  
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  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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