"CJT" wrote in message
...

I don't think it is quite that simple. Suppose you have 200 amp
service, and a panel that will accommodate only eight breakers, each
of which is occupied by a 15 amp breaker. Then the only way to access
the other 80 amps of capacity you already "have" is via a subpanel. It
doesn't really increase the capacity you have available, but it allows
you to access it. Adjust the numbers if you like, and argue about how
mis-designed my hypothetical situation might be, but the principle is
there.
That's a good point CJT, but is there really a lot or any 200 Amp mains,
that will only
hold eight breakers?
Still your point is valid.
Tony