For Northern California, PG&E has the following rates:
http://www.pge.com/tariffs/ERS.SHTML
For most of us residential users, the basic rate plans are (note, not an expert--possible errors in my summary--but I think the basics are correct):
E1--plain residential (flat rate all year long)
E6--New time of use plan (replaces E7). Run higher charges into late night (not good for solar).
E7--Time of Use, varies by time, day, season. Good rate plan for solar (noon-6pm is peak charge)
E9--Time of Use intended for recharging electric cars at night--very low late night rates.
I have E7 TOU. It was killed for new customers, and reopened again because it was so good for solar Grid Tied systems.
1 year net metered. If meter runs backwards, retail rate charge goes into "bank". If meter runs forward, money comes from bank or you write a check. Approximately 300 kWhr per month base line rate (lowest rates). Peak rates after ~1,000 kWhrs per month (E7 peak rate over $0.52 per kWhr, lowest off peak baseline is around $0.09 per kWhr). (if you have electric hot water/heat, baseline usage can be higher, also baseline varies by climate where billed).
When I signed up, you could buy your meter for $277, or you could rent it for about $3.50 per month (now, rental only option).
There is also a minimum charge of $0.14 per day (about $4.50 per month) for electricity. These minimum charges must be paid every month regardless if how much energy you use or generate.
The "bank" amount--you can either pay your power used per month or wait until the end of the year to pay-up any monthly charges (over minimum usage) that you have accumulated. If you have generated more money (bank) than you have used, your "bank balanced" is zero-ed at the end of the 1 year cycle.
3.5kWatts STC, 3kWatt Xantrex GT 3.0, and the first year I was about $275 credit in the bank. (natural gas for major appliances, no AC, Central Heat, Energy Star Appliances including 2nd freezer, CFL's everywhere, and turn off lights/TV/wall-worts/etc. with power strip if not used).
Several notes on TOU with PG&E.
About everyone's first bill is badly screwed up (I got a ~$400 bill for my first week on solar). Turned out that after I had all my approvals and connected my GT, the old E1 meter turned backwards and the billing computer assumed that the "meter reader" read our meter wrong and "made an adjustment". Needless to say, my wife was not very thrilled with solar at first.
Also, the TOU billing is under constant regulatory pressure by utilities and government--Things have been changing from year to year--So, cannot guarantee that TOU billing (and net metering) won't change dramatically in the future.
But, so far, the "positive regulatory environment" (not saying that this is good for the utilities and customers) has already installed solar PV up to the first approved levels (0.5% of total utility generation/grid capacity, if I remember correctly). New law passed that allowed more solar PV to be installed).
If that plug-in hybrid (or decently priced around town electric car) becomes available, I am all set (and assuming that there are still no "electric fuel road taxes").
-Bill
PS: E8 rate to E9 (correct rate for electric vehicle charging).