[RE-wrenches] enphase AC carrier length

[Nick Soleil]

Hi wrenches:
    One thing to keep in mind is that a 15 inverter string contains 78' of #14 
just on the inverters output cables.  Depending on the homerun length, it can be 
further.  Additionally, you will have the AC run back to the distribution panel, 
and then the additional residential wiring (#12 or #14) to the jack nearest to 
the router.  This can easily become 200' to 300' of wiring between the last 
inverter and the Envoy.  However, steps can be taken to minimize the issues, and 
I have always found a resolution to my communication issues.
    Breaking the string into two 7-8 module parallel strings (and then 
paralleling them at a j-box) can reduce the distance and voltage drop from the 
Enphase inverter output cables. 

    I have installed many systems that have had communication issues between the 
Envoy and the inverters.  In the past, I have installed new receptacles or run 
CAT 5 from the Envoy to the router.  That is time consuming, and there is a much 
easier way to deal with it. I have resolved most of my communication issues by 
installing the 'Ethernet Bridge' which is a 2nd power line carrier modem and its 
receiver.  This product enables the Envoy to be located away from the router 
(and closer to the array.)  The 'Ethernet Bridge' is a product offered by 
Enphase.

 Nick Soleil
Project Manager
Advanced Alternative Energy Solutions, LLC
PO Box 657
Petaluma, CA 94953
Cell:   707-321-2937
Office: 707-789-9537
Fax:    707-769-9037




________________________________
From: Drake <drake.chamberlin at redwoodalliance.org>
To: RE-wrenches <re-wrenches at lists.re-wrenches.org>
Sent: Thu, November 4, 2010 2:31:36 PM
Subject: Re: [RE-wrenches] enphase AC carrier length

I was told 300 feet by an Enphase Rep.  We have a system that is at 
least that far from the Envoy.


At 11:14 AM 11/4/2010, you wrote:
>HI All,
>
>Is there a max length to the AC carrier signal for Enphase?
>
>I thought I did hear about a length, and in checking the website 
>could find no mention of it.
>
>Anybody know?
>
>thx,
>
>jay
>
>peltz power
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