Friends:


I have an NEC code question on an upcoming project.  It is a home that has
an existing 8 kW ground-mounted grid-tied system.  The owner wants to add
another 10 kW of grid-tied PV.  My question is about 705.12, point of
connection.  Specifically section (D)(1).  That section states:



*The source interconnection of one or more inverters installed in one
system shall be made at a dedicated circuit breaker or fusible
disconnecting means.*



So if there are going to be two inverters on premise, do the outputs have
to be aggregated to connect via one circuit breaker?  This might be
difficult to do as the exiting inverter is connected via a different
sub-panel than the one that is planned to receive the new inverter output.



This article
<https://iaeimagazine.org/magazine/2014/01/16/load-side-pv-connections/>
addresses the question.



I would be very grateful if any of you can share any experience you might
have in interpreting this section of the code.



Thanks in advance.



William
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