Day 1 of ownership complete.
Before we go ANY further, keep in mind that the charger is not yet setup at work for my wife, so she drove home completely on gas. That said, we still achieved Prius-like MPG.
I think I botched the preheat settings (IE, "remote start" in a normal car) a little this morning and it used quite a bit of power off the top of the battery before my wife even left, and the level 1 charger cannot recoup that charge (or fully supply the car) as well as the level 2 charger will once I get it installed. Coupled with the requirement for defrost this morning due to the high humidity, she exhausted the battery at 36K. Her driving style needs work too which is something we are going to have to work on.
Total drive was 152K (she did a little excursion to the grocery store on the way home, so about 10 extra K vs her usual commute) and combined she averaged 5.1L/100K, or 46MPG.
So, when compared to what she was driving @12L/100K,
she would have burned 18.24L today.
So,
today we saved $13.92, based on the current $1.06/L. Ok, - $1.10 in electricity, so
$12.82 to be perfectly accurate.
Things I noted: Electric range was about 20K short of what I anticipated today but the temperature, the requirement for heat/defrost, and driving style contributed to that. The temperature was the biggest issue. Also important to notice is that the battery only showed 9.4KW consumed from what should have been the 10.4KW capacity, so as mentioned earlier, the preheat was at fault for this I believe - I need to get the 220v charger setup. I think she would have reached the 50K goal had that extra kilowatt actually been in the battery.
So, had my wife had access to the charger at work (as she soon will) and left with a full battery, assuming the ride home was a mirror of the ride up, it's a safe calculation to assume only 50% of the gas consumed (3.94L), she would have achieved
2.5L/100K, or 94MPG.
Once the weather warms up, heating demand reduces, battery efficiency increases, and she actually leaves with a full 10.4KW in it...those numbers will just get better and better.
So far so good.