[RE-wrenches] AC coupling-mix and match

[Darryl Thayer]

I have done several using Outback, and had good results.  I have done AC couple with PVPowered, the old red box SB, and Xantrex GT .  All with OUtback as the AC source.  I have done it with single Outback and a PSX240 and classic stacked OUtback.  My results have been very good.  

I have done it with grid tied and standalone.
I have not tried other battery based inverters.
DT 


--- On Mon, 3/23/09, Tump <tump at hughes.net> wrote:

> From: Tump <tump at hughes.net>
> Subject: Re: [RE-wrenches] AC coupling-mix and match
> To: "'RE-wrenches'" <re-wrenches at lists.re-wrenches.org>
> Date: Monday, March 23, 2009, 3:54 PM
> 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
> 
>