I need some help because number crunching what-if scenarios is unfortunately not one of my strong suits. For days I have unsuccessfully tried to figure out whether my current SDG&E residential rate plan or the EV-TOU-2 rate plan (which uses my existing smart meter) would cost me less overall based on a year's worth of my pre-EV electricity usage, as compared to my electricity usage with my Prius Plug-in. I have had my Prius Plug-in since early March. Since then I have remained on my standard SDG&E residential rate plan because if I change, I will be required to stay with the new plan for a minimum of one year. I don't drive my Plug-in Prius every day but when I do, relatively few of the miles I drive with it are straight EV, because of its very limited all-EV range. Even though my rate plan does not save me any money for doing so, I re-charge it using the car's timer after midnight. Unfortunately, all I have to show for my frustrating efforts is a stack of print-outs on my desk from my SDG&E online account. These represent my daily electricity use from March 17 - 25, 2011 and the same days in 2012. I have no choice but to print out daily reports because only SDG&E's single-day reports (not the weekly or monthly or annual reports) break down a customer's residential electricity usage by time-of-day, which is how the EV-TOU-2 rates are applied (Super Off Peak, Off Peak, Peak and Off Peak). In contrast, all but the SDG&E daily reports and my past SDG&E bills (several of which I also printed out), only show overall monthly totals. On my monthly bills these are only broken down by baseline, 100%-130% of baseline, 131%-200% of baseline and more than 200% of baseline for a month - not by the day. Therefore there is no way I can determine how much I would have paid for the same bills over the period of one year if they were calculated under the EV-TOU-2 rate plan unless I look at at each of the 365 days individually, somehow manage to extract the data for each of the four time intervals used in billing under the EV-TOU-2 rate plan, add them all up and then compare them. To accurately compare what I would pay under each of the two plans for a year (which is the minimum time period SDG&E will let customers sign up for the EV-TOU-2 rate plan), I would have to compile data from each of the four time periods within each day for each of my 365 daily SDG&E usage reports. How on earth am I or other new EV owners supposed to do that? I was hopelessly confused when I tried to make sense of SDG&E's charts: "Total Electric Rate for the EV TOU(and 2) and DR rates to understand the prices for energy under both billing mechanisms." Surely SDG&E has the ability to devise some sort of computer program to crunch the data and compare the two different rate plans, given a household's past electricity use, to see which would be the less expensive way to go. Then all SDG&E or, if necessary, I would have to do is add to that my very recent, increased electricity usage between 1AM and 4AM (which is when I have set my Prius to recharge), and I'd get the answer I need to make an informed decision before I commit to a one-year minimum rate change. Failing that, I have been told that a utility company in the LA area will allow someone to sign up for their equivalent to SDG&E's EV-TOU-2 rates and after a year, if they determine that the customer would have paid less under their previous rate structure, they refund the difference and allow the customer to return to being billed at their previous rate structure. SDG&E does not offer that, and they do not offer sufficient help to me to do these difficult comparative analyses. Will someone in our group help me decide whether or not to switch to SDG&E's EV-TOU-2 rates? Thank you.