[RE-wrenches] two buildings one grid connectioon

Drake drake.chamberlin at redwoodalliance.org
Mon Jun 18 06:09:57 PDT 2012


I did this on one property with two meters on different 
buildings.  There were no problems.

We have been considering a design that would have a central ground 
mount array in a favorable location with different sub arrays feeding 
different inverters in different houses that are in the vicinity of 
the array.  I think that so long as all easement details are worked 
out, it should be permissible.

At 12:54 AM 6/18/2012, you wrote:
>I have done this with two houses, each having its own utility meter 
>and service. The AHJ approved it because all of the solar components 
>were exterior to the host building, we had DC and AC disconnects at 
>the host building, and we had engraved placards at both services 
>identifying the location of everything and the point of 
>interconnection. I don't believe there is anything in the NEC that 
>would disallow it, but local codes or utility requirements might be a problem.
>
>-Hans
>
>On Jun 15, 2012, at 5:49 PM, Allen Frishman 
><<mailto:amfrish at aeonsolar.com>amfrish at aeonsolar.com> wrote:
>
>>Hey Wrenchers,
>>I have been asked to participate in a feasibility study for a 
>>~300KW Grid Tied solar system in NYC.  There are two adjacent 
>>detached buildings,  one has great unshaded space with very little 
>>usage and the other has no available roof space with high annual 
>>usage.   The separate owners of the two buildings want to work out 
>>a deal to install the array on the good space roof and grid connect 
>>to the other building.  Is there anything in the NEC that will not 
>>allow this?   I know there was a topic discussed last year "Two 
>>Buildings, two services, one roof" but that project was never 
>>installed and therefore no conclusion made.
>>
>>Any and all feedback is appreciated.
>>
>>Thank you
>>
>>Al Frishman
>>AeonSolar
>>
>><tel:%28917%29%20699-6641>(917) 699-6641 - cell
>><tel:%28888%29%20460-2867>(888) 460-2867
>><http://www.aeonsolar.com/>www.aeonsolar.com
>>
>>Al Frishman
>>AeonSolar
>>
>><tel:%28917%29%20699-6641>(917) 699-6641 - cell
>><tel:%28888%29%20460-2867>(888) 460-2867
>><http://www.aeonsolar.com/>www.aeonsolar.com
>>
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Drake Chamberlin
ATHENS ELECTRIC LLC
OH License 44810
CO license 3773
NABCEP Certified PV
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