Thanks to all for the great advice on the AC coupled system we are working on.
We were trying to do this with the XW Xantrex as that was what the client had wanted, but after all the comments I am going to talk him into going with an Outback power panel AC coupled to a SunnyBoy, and use an aux
I agree that whether you go with AC or DC coupling you'll want to run the DC
from the array to the battery inverter location to take advantage of the
higher voltage. If you go with AC and the Xantrex XW you'll want to talk
with them directly about backfeeding the inverter from the load side. I
don'
I was excited about using a new Apollo controller.
Did they ever come up with a listed GFI/breaker setup for that high of
a voltage?
Doug Wells
The Solar Specialists
Worcester, VT 05682
(p) 802-223-7014
(c) 802-498-5856
www.thesolarspecialists.com
__
Chris Schaefer wrote:
Also Robin at Midnight Solar has been promising to come out with a higher
VOC charge controller too. How about it Robin? I'll be needed one for this
spring for use at our Design and Training Center for use in a class. Be
happy to do some Beta testing for you.
Chris Schaefer
Hi Jeff,
1. if the distances are really far why not run the DC from the panels
to the inverter, higher voltage, smaller wire.
2. if you use the XW then yes you will be running the AC from the SB
to the sub panel, this will feed the inverter and cause it to charge,
which you will need to put
ts.re-wrenches.org] On Behalf Of
penobscotso...@midmaine.com
Sent: 19 January, 2009 06:18
To: jry...@netscape.com; RE-wrenches
Subject: Re: [RE-wrenches] Back feeding battery inverter with grid-tie
inverter
Hi Jeff,
This isn't an answer to the questions below, but an alternate
suggestion. Apollo S
The best way is to use a SunnyIsland. It's all automatic - no need for
dummy loads.
Matt T
Jeff Yago wrote:
I know this subject has come up before, but there have been several different suggested ways to handle the problem and I was hoping for easiest. We install lots of both on grid and off
This is not a good combination of equipment choices. If you want a
safe and reliable installation it is good practice to use equipment
as it is intended to be used. You should not back feed an Xantrex XW
through the output side. The easiest way to go is use a Sunny Island
with the batteries
Hi Jeff,
This isn't an answer to the questions below, but an alternate
suggestion. Apollo Solar has a charge controller which allows for
strings of up to 200 VOC (160 volts nominal) and I believe 100 amps.
Would this not be a simpler, more efficient system?
Just a thought...
Daryl DeJoy
NABCEP
I know this subject has come up before, but there have been several different
suggested ways to handle the problem and I was hoping for easiest. We install
lots of both on grid and off grid systems. However, we have a client that will
require a ground mounted array much futher away from the in
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