
Bill,

I'm not sure I understand. I think you are saying a grid-tied PV system with no
battery backup is considered by the code (as allowed by Article 230.2(A) Special
Conditions) to be a separate service.  It is not among the six Special
Conditions listed.

Dick


You wrote:
In general you are correct, (with few exceptions, e.g. a PV system) but the
NEC permits multiple services under 230.2(A) Special Conditions.

230.2 Number of Services. A building or other structure
served shall be supplied by only one service unless permitted
in 230.2(A) through (D). For the purpose of 230.40, Exception
No. 2 only, underground sets of conductors, 1/0 AWG and
larger, running to the same location and connected together at
their supply end but not connected together at their load end
shall be considered to be supplying one service.
(A) Special Conditions. Additional services shall be permitted
to supply the following:
(1) Fire pumps
(2) Emergency systems
(3) Legally required standby systems
(4) Optional standby systems
(5) Parallel power production systems
(6) Systems designed for connection to multiple sources of
supply for the purpose of enhanced reliability

Bill.


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