PG&E has been very difficult for me in getting E9a going and finally after 10 or more calls I have received my 2nd E9a bill. I contacted PG&E in October of last year and they didn't want to talk to me until I knew when the car was coming. With the LEAF deliveries very sparse and changing, I didn't contact them again until the week the car was here - then PG&E wanted to know why I had not contacted them earlier,
but they don't keep very good records in this area either.
So I wanted to switch to E9a and get information on the cost of E9b and after another round of a dozen phone calls I finally have E9a but only retroactive to start of July. June was too complicated for PG&E to calculate. (that's what the rep said!)
I had E1 plan in zone X with gas heating and no solar pv so I had about 1 year of SmartMeter data to estimate energy consumption. When you start E9a without PV you don't need a new meter (NET meter) so the SmartMeter will work for E9a without PV but you lose the energy use by hour access at PG&E logging that was available with the E1 pricing. Then in June 2011 the 30 day summer baseline for PG&E for zone X was reduced from 363KWhr to 330KWhr while adding the LEAF increased my electric consumption by 300KWHr (450 to 750) during the summer. For June my average cost on E1 was 18 cents/KWhr, for July E9a it was 14 cents/KWhr and for August it is 17 cents/KWhr.
Putting in E9b may require new underground wire replacement and PG&E believes I have buried wires and I would have to make a trench, install conduit and then PG&E will pull new wiring to support the two meters. At the rate progress is going it will be sometime next year before I will switch to E9b or reconsider putting in PV to offset the tier 3&4 consumption.