[RE-wrenches] meter pan?

[Kent Osterberg]

This seems to be an example of the utility company trying to make things 
unnecessarily difficult. Firstly, it is perfectly safe to remove the kWh 
meter while it is energized, the utility company does it all the time. 
Secondly, a single disconnect on the utility side, which may be required 
anyway, will shut down a utility interactive inverter. That's why the 
NEC exempts interactive inverters from from the requirement of having a 
a breaker hold down clamp. One question you have to ask though is: who 
owns the meter? If it is the utility company, they can probably dictate 
the requirements. If the customer owns the production meter, then the 
utility company should have no say about it.

Kent Osterberg
Blue Mountain Solar, Inc.
www.bluemountainsolar.com
t: 541-568-4882


On 1/24/2012 6:52 AM, mac Lewis wrote:
> Here in Xcel territory in Colorado, we are required to cold-sequence 
> the solar production meter.  These disconnects have to be utility 
> accessible and adjacent to the production meter itself.  I believe 
> this is only a utility requirement, not a code requirement.  This 
> seems to be unneeded redundancy, because the inverter side will shut 
> down, once the line side is deenergized.
>
> Mac Lewis
>
> On Tue, Jan 24, 2012 at 7:14 AM, Allen Frishman <amfrish at aeonsolar.com 
> <mailto:amfrish at aeonsolar.com>> wrote:
>
>     Wrencher's,
>     I am having a good debate with a fellow solar installer regarding
>     an NEC requirement to isolate a meter between two disconnecting
>     means adjacent to the meter when grid connecting via a tap.   My
>     thought is that if we have a load center with breakers to combine
>     multiple inverters on the roof, the PV meter can be located in the
>     basement between the roof load center and a fused disconnect
>     adjacent to the tap with no need for a disconnect next to the
>     meter on the load center side of the meter.  Can anyone reference
>     a section in the code that requires a disconnecting means adjacent
>     to both sides of the meter?  The meter I am referencing simply
>     records the total kWh's of the solar system as required by the
>     State incentive program.
>
>     All feedback is appreciated.
>
>     /Al Frishman/
>     AeonSolar
>
>     /(917) 699-6641 <tel:%28917%29%20699-6641> - cell/
>     /(888) 460-2867 <tel:%28888%29%20460-2867>/
>     /www.aeonsolar.com <http://www.aeonsolar.com/>/
>
>
>
>     _______________________________________________
>     List sponsored by Home Power magazine
>
>     List Address: RE-wrenches at lists.re-wrenches.org
>     <mailto:RE-wrenches at lists.re-wrenches.org>
>
>     Options & settings:
>     http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>
>     List-Archive:
>     http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
>
>     List rules & etiquette:
>     www.re-wrenches.org/etiquette.htm
>     <http://www.re-wrenches.org/etiquette.htm>
>
>     Check out participant bios:
>     www.members.re-wrenches.org <http://www.members.re-wrenches.org>
>
>
>
>
>
> -- 
>
>
>
> Mac Lewis
>
> *
>
> "Yo solo sé que no sé nada." -Sócrates
>
> *
>
>
> _______________________________________________
> List sponsored by Home Power magazine
>
> List Address: RE-wrenches at lists.re-wrenches.org
>
> Options&  settings:
> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>
> List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
>
> List rules&  etiquette:
> www.re-wrenches.org/etiquette.htm
>
> Check out participant bios:
> www.members.re-wrenches.org
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20120124/cdcf0336/attachment-0004.html>