[null and void]

Strange, I'm getting 800W from my ~ 2 m² array in downtown San Jose. (But then, the array is angled towards the sun, eliminating one of the main "power losses" in your table).

My PG&E bill runs in the $10-20 range...

[Boot Hill]

null and void claims:   "I'm getting 800W from my ~ 2 m2 array in downtown San Jose."

I can guarantee you that you are not getting 800 watts from a 2 m² PV cell array.

--Boot Hill

[MainFrame65]

"...I'm getting 800W from my ~ 2 m2 array in downtown San Jose."

And how many watts at midnight, with a new moon, in mid-winter? In other words, what is the average output over a full year, which would tend to average out daily, seasonal, and weather variation?