[RE-wrenches] Utility transformer limitations

[William Miller]

Wrenched:



Merry Christmas to those of you that observe such traditions, or substitute
the winter festivity of your choice.



I helped a previous employee install an Enphase IQ8 system on his home.  He
applied for the utility approval concurrently with his building permit  The
day he got his final inspection the utility contacted him and claimed "The
aggregate generation exceeds the identified transformer rating" and refused
him a Permission to Operate letter.



Adding up the service ratings of the homes on his secondary we get about
336 kW of potential consumption.  Adding the grid-tied systems on his
secondary we get about 16.5 kW.  How is it that the back-feed exceeds the
transformer rating?



I would appreciate any insight on how to consider this situation and how to
fight it.



Sincerely,



William Miller



Miller Solar

17395 Oak Road, Atascadero, CA 93422

805-438-5600

www.millersolar.com

CA Lic. 773985
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