Solar City

I guess if you buy an electric vehicle, the next logical step is getting solar panels installed at home. While I was waiting for the Model S to be delivered, I contacted Solar City and purchased a 3.65 kW system. None of that 20-year lease nonsense for me. They are coming to install the system this Friday, before the end of the year, so I should be able to claim the 30% tax credit for this year's taxes as well.

The process was pretty straightforward, though the sales guy was a bit pushy. On every phone call, he asks me for referrals. The system hasn't been installed yet. How can I recommend either way? Also, I found out that SoCal Edison won't allow the installed solar system to generate more than your prior year's usage. I don't understand this rule. Are solar installers putting much larger systems than necessary? Wouldn't they (utilities and government) want all available roof real estate used up? What this means for me is that I can only get a system to cover my prior usage, even though if I charge the car at home all the time, my usage will increase by 50%.

Stupid.