Figured I'd take a swag at answering some of the other parts of the original question:
2. Inverter is on roof so is aggregator which has fuse. If I provide single disconnecting means at aggregator per NEC 2014 Article 690.17 then would I still need to comply per NEC 2014 Article 690.15(A)(B)(C)?
--> Yes, but if you install an AC switch there you shouldn't have a problem. 690.15(A) "a single disconnecting means in accordance with 690.17 shall be permitted for the combined ac output of one or more inverters or ac modules in an interactive system." --> See 690.17 --> 690.17(A) = N/A because your branch circuit(s) are inverter output circuits, not "PV conductors." 690.17(B)-(E): make sure it simultaneously opens the poles (B), is externally operable (C), doesn't disconnect the grounded conductor (C) [N/A because Enphase IQ7+ doesn't have a neutral/grounded conductor in output circuit], and (E) rated for the max current/voltage/kA of the system. Back to 690.15(A). (1) N/A, we're talking about AC circuit. (2) your AC disconnect on the roof should meet this requirement. should be within sight of the microinverters. You need the switch on the roof, because the inverters don't have an AC disconnect built into them. (3) You need a PV system disconnect per 690.13(A) in a readily accessible location, elsewhere, NOT on the roof. --> You need another AC switch. (4) A plaque shall be installed in accordance w/ 705.10.
3. Do I need to comply per NEC 2014 Article 690.16?
--> Yes. If your "aggregator" is a fusible switch or some type of disconnect-combiner with finger-safe fuseholders then the requirements for fuse serviceability should be met. Otherwise, you need a way to isolate each side of the fuse, which is best done with a load-break switch (on one side of the fuse), and then you could have a pullout, or "non-load break disconnect" as simple as a lockable connector that can be opened to isolate the other side of the fuse(s) prior to working on it. Alternately, you could use an aggregator that uses 240V/20A circuit breakers and avoid the fuse serviceability requirement.
4. Solar sub panel is on roof remote from main service disconnecting means which is inside building electric room. Do I need to comply per NEC 2014 Article 690.13(A)(E)? Their is exception for 690.13(A) but not for 690.13(E) is confusing.
--> Yes, you need a "PV system disconnect." This is the main switch or breaker that isolates the PV system from the rest of the building. It must also be in a readily accessible location per 690.13(A). From the look of it, you don't have any disconnect between your solar subpanel and the taps from the line side of your main service disconnect. So it seems a service-rated AC disconnect that is also your "PV system disconnect" should go in front of your solar subpanel, and should probably have overcurrent protection, depending on the length of the tap. Since your solar subpanel is on the roof, I think your best bet is to install this separate AC switch (690.13(D)) in the electrical room. Finally, I don't think you can use the exception to 690.13(A), which cites 690.31(F) (think it's a typo in my book), which references small conductors and doesn't make any sense. Anyway, you'll need that PV system disconnect, since it will also be your rapid shutdown "initiating device"...
5. Any one know ENphase IQ +7 inverter is on roof how does it comply per rapid shutdown Nec 2014 Article 690.12? How does one initate rapid shutdown?
--> The Enphase IQ7+ (and others) are UL listed to comply with Rapid Shutdown requirements. Their marketing claims NEC 2014 and 2017 compliance, and you can verify that your microinverter (IQ7PLUS...) is in their UL file QIJW.E341165. By removing AC power via your PV system disconnect the inverters should shut off and conform to 690.12. The PV system disconnect should be labeled per 690.56(B): "PHOTOVOLTAIC SYSTEM EQUIPPED WITH RAPID SHUTDOWN." BUT! Please verify with the manufacturer on how to do this correctly. As with all things free--take my advice for direction, but please verify with professionals (inspectors, engineers, and the manufacturer) that it works for your specific situation.
Besides that, good luck! D