[RE-wrenches] Paralleling Multiple Inverter

Mark Frye markf at berkeleysolar.com
Sun Jan 22 13:33:56 PST 2012


Rich,
 
If you have an archive of Wrenches email, also see thread on this subject
dating on and about March 29, 2011.

Mark Frye 
Berkeley Solar Electric Systems 
303 Redbud Way 
Nevada City,  CA 95959 
(530) 401-8024 
 <http://www.berkeleysolar.com/> www.berkeleysolar.com  
 

  _____  

From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Rich Nicol
Sent: Sunday, January 22, 2012 1:14 PM
To: 'RE-wrenches'
Subject: Re: [RE-wrenches] Paralleling Multiple Inverter



Wrenches

Thanks for the detailed responses.

My understanding is the same as William's that my total back feed value is
based on the over current devices for each inverter which is 40 amps X 4 =
160 Amps.  

Where I'm having a problem is choosing a panel based in respect to
considering both the inverter feed and the utility side or just the inverter
feeder side.  Considering just the feed of the inverters is certainly
preferable as Mark suggests since that would allow for use of a 200amp
panel.  

My take on it in that respect is a 200 amp panel, with no additional slots
other than those for the 4 inverters with clear signage that no load
circuits are permitted in this panel. A second small panel would then be
employed if any load circuits were required for lighting or monitoring
devices.

Thanks

Rich

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