Finally up to 7.5 Kw of solar
In spite of wind, rain, and visiting friends, I finally finished our solar panel installation. We now have 36 panels on the roof. Each of them is rated for 208 watts, so the total production capacity of the array under ideal conditions is 7488 watts. Today, when the sun appeared between the clouds, I saw the system reach its theoretical maximum of 7.5Kw! The best number I could capture today after getting my camera out was 7.2Kw.
Speaking of clouds, it is possible (and I saw it happen when I had fewer panels on the roof), for the array to put out even more than its theoretical maximum when the sun is peeking around the edge of a cloud. I won't pretend to understand the optics, but the edge of the cloud focuses the sun on the array. The extra power is trivial since the condition only occurs for a brief period of time (clouds move!). But it is important to consider this "peaking" effect when sizing fuses, wires, and battery chargers.
Here's a picture of the cloud obstructed sun earlier today, trying to shine through the timbers and our as-yet-untrimmed windows on the south side of the house.