[RE-wrenches] Minimum bus size, new requirements

[William Miller]

Lloyd:



Thank you so much for forwarding these links.  This should have been on my
radar.  You saved me some time searching this out.  For those who may not
be totally up-to-speed on these regulations, they make some interesting
reading.



Some will undoubtedly call them burdensome, but it in my opinion many of
the concepts are well-founded.  For example, I have been known to whine
when roof area is not available for solar panels.  This is addressed.  I
have also been pretty pathetic when breaker space is not available for
back-feed,  This too is addressed.  Segregated, essential load panel?  It’s
in there.  There are a lot of provisions that will make it easier to do our
jobs.



Reading through this mandate may raise hackles for some who do not like to
be told how to do their jobs.  We all know it is difficult to adapt to new
regulations.  Having just skimmed them, I like what is being laid down.



William



Miller Solar

17395 Oak Road, Atascadero, CA 93422

805-438-5600

www.millersolar.com

CA Lic. 773985





*From:* Lloyd Hoffstatter [mailto:lloyd at sunstruckconsulting.com]
*Sent:* Thursday, March 28, 2024 11:34 AM
*To:* william at millersolar.com; RE-wrenches
*Subject:* Re: [RE-wrenches] Minimum bus size, new requirements



William,



Here is the CA Energy Code with the upsized busbar requirements under solar
/ ess readiness:



https://title24energyreports.com/articles/basic-facts-changes-2022-energy-code.php



Best regard

Title 24: 2022 Energy Code - Basic Facts | CompuCalc
<https://title24energyreports.com/articles/basic-facts-changes-2022-energy-code.php>

Summary of changes and updates in the 2022 California Energy Code

title24energyreports.com





Lloyd Hoffstatter, M.S. Applied Solar Energy

Inaugural NABCEP Cetrified PV Installer Emeritus

Director, Sunstruck Consulting

lloyd at sunstruckconsulting.com

845-657-8132 (office)

914-844-3404 (cell)


------------------------------

*From:* RE-wrenches <re-wrenches-bounces at lists.re-wrenches.org> on behalf
of William Miller via RE-wrenches <re-wrenches at lists.re-wrenches.org>
*Sent:* Thursday, March 28, 2024 1:00 PM
*To:* RE-wrenches <re-wrenches at lists.re-wrenches.org>
*Cc:* William Miller <william at millersolar.com>
*Subject:* [RE-wrenches] Minimum bus size, new requirements



Friends:



A local building official recently wrote this:



This is to comply with the new codes (California Energy Code and the Nation
Electric Code) that require this minimum buss rating regardless of the
service size or main size.



The new code allegedly requires a minimum bus rating of 225A in all new
services of 200A rating or less.



Do any of you know what new code this might be?



Thanks in advance for your time.



William



Miller Solar

17395 Oak Road, Atascadero, CA 93422

805-438-5600

www.millersolar.com
<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.millersolar.com_&d=DwMFaQ&c=euGZstcaTDllvimEN8b7jXrwqOf-v5A_CdpgnVfiiMM&r=p2tHyHEAjVe2zSh4C_236V4KkHnn0z0ynUvWz0mobds&m=9uejohzp8xlaOjgzFRzK5pSkQX5Jtrq-KM0zg-kn9sGvQF-Ezmo9hA2K0hbNA1ns&s=7RIp61FIGVkUrnLeJuaaLlwwPwqGeMEQXVgB04GNECk&e=>

CA Lic. 773985
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