Hombre
When I talked with Rob, he said they averaged out there kilowatt usage over the last three years, before meeting up with the solar lease people. He was originally looking at a 5 KW system, but the guy said why not meet almost all of your electrical needs. So they priced a system that should meet roughly 92% of their needs. From what I understand, it rolls your meter back while producing energy, and then spins foward while not. No batteries, no storage. Energy goes up the line to power company, and rolls meter back. In the winter I'm not sure if they get credits toward their bill for when they produce more than they need. Here in California, I'm pretty sure the power company won't pay for extra, but you only pay for net meter usage.
Seems like a great way to get into solar without the huge up front cash outlay. Redding by the way should give you lots of juice in the summer!