[RE-wrenches] Enphase and Line Noise

[William Miller]

Hey Eric, Wrenches:

 

The first thing that jumps out at me is the timer in the neutral.  That is
messed up.  You should never switch the neutral.

 

I have had some difficult Enphase interference problems.  I was told this
and did not believe at first, but always, always, bring your Enphase feeds
into a separate sub-panel.  In that sub-panel install the breaker feeding
the receptacle for the Envoy.  This way you can filter the feeder to that
sub-panel and it is isolated from the entirety of the remaining electrical
system.  

 

I tried the toroidal filters but they did not work  Nick Soleil recommended
an in-line filter from Digi-key that did the trick.  Here is the link:

 

http://www.digikey.com/product-search/en?vendor=0
<http://www.digikey.com/product-search/en?vendor=0&keywords=FN+2450G-20-61>
&keywords=FN+2450G-20-61

 

Good luck.

 

William

 

From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of SunHarvest
Sent: Wednesday, October 16, 2013 3:34 PM
To: RE-wrenches
Subject: Re: [RE-wrenches] Enphase and Line Noise

 

I really like using Enphase but my most recent customer just informed me
that his pool lighting is now turning on and off intermittently after the PV
install completion. The lights are controlled via a timer on the neutral
line. I'm pretty green when it comes to controls so I don't have a solution
yet. Just thought I'd add my experience in response to your query. Look
forward to what others have to say about this...

 

Eric

 

----- Original Message ----- 

From: markf at berkeleysolar.com 

To: re-wrenches at lists.re-wrenches.org 

Sent: Wednesday, October 16, 2013 1:01 PM

Subject: [RE-wrenches] Enphase and Line Noise

 

Guys,

I am thinking of getting back into using Enphase, but I am worried about
sites with high line noise block communication with the microinverters.

I have run into homes with light control systems and VFD pumps.

I am wonder what folks have experienced:

1 - How often do you encounter this problem?
2 - What are other causes of noise that impacted the site?
3 - How did you address, with a line filter?
4 - How did you handle the added cost, passed it on or eat it?

Thanks,

Mark Frye
Berkeley Solar Electric Systems

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