Back to the drawing board. :roll:
When I went in to retrieve the meter socket (provided by POCO) and the specs for the service, there were no specs provided. So I asked the lady at the counter for the specs, and she called an engineer out to give them to me.
He was a nice guy, we talked for a bit and I pressed him about my plan, for which at this point the parts were purchased and sitting in the back of my van.
No, it's not right, he said. I need a service disconnect that the POCO can lock out, a real handle. So, I forwarded him the emails I had exchanged with the other guy at the POCO, encouraging them all to get on the same page (politely). :roll:
So, a $90 main breaker just evolved into a $350 fusible disconnect over the course of a fifteen minute conversation.
The only thing that really irritates me is I tried to do the right thing this time, learning from past mistakes, and actively hounded the AHJ and POCO to get it right the first time, and still almost wound up ripping things down and doing them over.
So, for the record (for future searches), the POCO in this instance required a fusible disconnect for a service disconnect in the case of an inverter on the load side of the service disconnect.
Edit to add: I realize that a couple people right now are thinking, "Well, duh - that's what we've been saying!" But the thing is, there are a few stops along the way between inverter and service disconnect on this one, and as the conversation progressed I was of the mindset that if the disconnect were misplaced, then it wouldn't do me any good anyway. Know what I mean?