[RE-wrenches] AC coupling-mix and match

[Tump]

I have a XW6048 working w/ a SMA + a xantrex suntie. I did have issues that
required me to install the SMA breaker at the top of the buss bar.I'll see
if it will work with a Enphase

-----Original Message-----
From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of I2P at aol.com
Sent: Monday, March 23, 2009 3:57 PM
To: re-wrenches at lists.re-wrenches.org; mdargatz at enphaseenergy.com
Cc: OFLN at aol.com; I2P at aol.com
Subject: [RE-wrenches] AC coupling-mix and match



Wrenches,
 
I have been doing some experimenting --testing compatibility between brands
of grid tie inverters and sign wave battery type inverters. I am hoping some
of you also have  some experience here and we can compare results.
 
My interest is fueled by my belief that AC coupling is the ideal way to
increase system capacity  for battery based off grid systems. The primary
benefit is higher system efficiency for AC loads used during the day. I
realize that power management becomes important but my interest right now is
just to find out who talks to who. My ultimate "power management" tool will
be an electric vehicle. Charging it will undoubtedly suck up available
juice.
 
So far:
 
SMA synchronizes to Xantrex SW (have not tested the XW yet) and Outback and
of course the SMA Sunny Island
 
Xantrex GT also syncs to the SW
 
I started this project with Enphase as my first choice since their system is
so scaleable. I have been unable to make Enphase sync. Marv at Enphase has
been very helpful but to date no results.  I have, at Marv's suggestion
,used capacitors to clean the somewhat hashy SW output without results. Marv
tells me he is testing Enphase and Outback. Does anyone have experience
syncing Enphase to other offgrid inverters?
 
Any experiences with Fronius and others.? 
 
Though the SW output is not the cleanest, the results with SB and GT are
very stable. They hookup early AM and its steady green light all day long.
Though I use microwave, start induction motors etc, and my scope clearly
shows lots of spikes during these events, the GT and SB hang in.
 
What are the experiences from others regarding mix and match?.
Interoperability among brands seems to be a very desirable goal to this
wrench.
 
Don Loweburg
Offline Solar, Inc


  _____  

A Good Credit Score is 700 or Above. See
<http://pr.atwola.com/promoclk/100126575x1219858252x1201366219/aol?redir=htt
p:%2F%2Fwww.freecreditreport.com%2Fpm%2Fdefault.aspx%3Fsc%3D668072%26hmpgID%
3D62%26bcd%3DMarchfooterNO62> yours in just 2 easy steps! 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20090323/fcbe13cd/attachment-0003.html>