[RE-wrenches] Supply Side Tap Overcurrent Protection

[Nick Soleil]

    Downsize the main breaker?  I would if I could, but the customer only has 100 Amps now, and the solar is fed with two breakers, a 30A and a 40A.  So to be under 120Amps, I would have to size the main to 50 Amps, which may be problematic.
    I can also do the line side tap, but had heard that a load analysis may be accepted instead.  The loads of the house will never use more than 100 Amps.  I am wondering if any codes or white papers detail that option.  

 Nick Soleil
Project Manager
Advanced Alternative Energy Solutions, LLC
PO Box 657
Petaluma, CA 94953
Cell:   707-321-2937
Office: 707-789-9537
Fax:    707-769-9037




________________________________
From: Eric Andrews <eric at ecosolarnow.com>
To: RE-wrenches <re-wrenches at lists.re-wrenches.org>
Sent: Tue, March 30, 2010 10:25:45 AM
Subject: Re: [RE-wrenches] Supply Side Tap Overcurrent Protection

  
Nick-
 
Just
downsize the main breaker.  For example,
a 200 amp panel w/ a 200 amp main breaker could be reduced to a 150 amp main
breaker to allow for more solar to be connected.  You need to calculate for the 120% rule.
 
Eric R. Andrews
NABCEP
Certified PV Installer


      
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