[RE-wrenches] SolarReady Service Panel vs adding Supply Side connection?

[Glenn Burt]

Hi Jeff,

 

Seems to me if allowed in your jurisdiction, you might be best served by installing a new 200A fused service disconnect ahead of the existing main service panel. Or even a 400A one to allow for additional work inside (CT’s), then perform a supply side connection in it. Some manufacturers of switchgear have an option for lugs that accept multiple conductors, so no piercing of conductors needs to happen.

 

Good luck,

Glenn

 

From: RE-wrenches <re-wrenches-bounces at lists.re-wrenches.org> On Behalf Of Jeff Clearwater
Sent: Thursday, October 17, 2019 3:20 PM
To: RE-wrenches <re-wrenches at lists.re-wrenches.org>
Subject: [RE-wrenches] SolarReady Service Panel vs adding Supply Side connection?

 

Esteemed Wrenches,

I am in need of changing out an existing 200 Amp service entrance in order to accommodate a bus capable of handling a a 200 Amp Solar backfeed (41 KW system) .  

PG&E is upgrading the transformer to handle the backfeed but when I proposed a Siemens SolarReady 400 Amp service entrance they couldn't approve it cause since the building is a shop - they classify it as commercial and require a panel that can handle CTs when there is a 400 Amp service involved.

Anyone else faced with this have solutions?  What is the cheapest equipment I can provide to satisfy all requirements?

We don't need to upgrade the existing 200 amp service entrance equipment for load purposes - only to meet the bus requirements of backfeed.

Would it be cheaper and easier to use the existing (or new) 200 Amp residential panel - not call it a 400 Amp upgrade but simply add a 200 Amp Supply Side Connection?  Suggested equipment to do that in the most economical manner?

Any help well appreciated!

Jeff 









-- 
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Jeff Clearwater
Village Power Design
linkedin <https://www.linkedin.com/in/jeff-clearwater-0622a312/>  
www.villagepowerdesign.com <http://www.villagepowerdesign.com> 
cell - 413-559-9763
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