[stevehull]

Pinball,

Great that you are using a performance factor of 86% as I figured in 77% (from PVWatts)in my estimates. How do you verify the 86%?

Thanks for the info on individual panel monitoring. Lastly, the idea of getting one extra inverter is a superb suggestion . . . .

I can easily put in a surplus analog (old style) watt hour meter for about $50 (for PV production only), but the ability to use the free Enphase monitoring software makes this unnecessary.

Already have a smart meter set up for net metering and my local electrical coop is good for system. All I need is a licensed electrician to do the final hook up to panel and to verify that he/she did that.

Local coop will allow me to "bank" extra kWhrs for 30 days. If they are not used by that time, then I donate them to the grid. So I am sizing system so to loose as little as possible to "banked leakage" (if there is such a term).

Is $1.75 still a realistic figure for price per watt self installed (panels, inverters, roof rack, wiring, etc.)?

GREAT job - both of you!

Steve