Inside systems installation

Here are the two SunPower inverters that receive the DC feeds from four strings of panels on the roof.  

The inverters (now closed up) and the rest of the system. Clockwise from the top right, here's what happens.
Four strings of DC power from the roof panels enter the two inverters.
Each inverter feeds its AC output (240v) into the large junction box on the lower left (it has a 30A breaker on each feed).
The combined output feeds through a mechanical (!) meter into the main electrical panel.
In addition, a utility-grade electronic meter (above the mechanical meter) feeds back my power generation through the internet to SunPower, which in turn uses that information to generate my SRECs.
Finally, the box at the upper left contains whole house monitoring for the electrical system, so that we will be able to track usage from a web site. In that same box is a network switch that connects to my internet router.

This is the monitoring box with internet switch.

This is the main electrical panel. The big black wire entering the box at the lower right is the AC feed from the mechanical meter, and it goes to a 50A breaker. The fat gray cable coming in at the top right houses the feeds to the two monitoring systems.