Converting Off-Grid OB to Grid-Tie [RE-wrenches]

[Christopher Freitas --- OutBack Power]

Combining our off-grid and grid-tie inverters is not the cleanest 
solution - but it does work.  

For the majority of the systems which have been "AC coupled" (i.e 
battery type inverter used together with batteryless grid-tied 
inverters) we have used the "off-grid" inverter models since they do not 
need to sell and they can be stacked in the larger configurations and 
tolerate virtually any generator out there.  

We do have many customers running our grid-tie battery inverters with 
back-up AC generators without problems.  I am comfortable with using 
them with any of the "inverter" type generators - which are available 
from many sources these days.  With their higher efficiency (especially 
at partial load levels) these generator are often ideal for use with a 
grid-tied battery back-up system to handle an extended outage.

Christopher Freitas

OutBack Power Systems, Inc.
cfreitas @ outbackpower.com  
www.outbackpower.com
Arlington WA USA
Tel 360 435 6030  


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