Hi SBT,
Yes, $120 a month more is about right. (My northern California PG&E bill for my first month was closer to $200 more because I was already in tier 5 rates before the Focus came home). Driving an electric vehicle really requires a multi-faceted lifestyle change. In the last two months I've changed to a "time of use" billing structure for EV drivers (They give you a discounted rate from midnight to 6AM). To ensure that I could recharge in that window, a level 2 charger was mandatory. I also re-lamped most of the lights in my home with LEDs (GE and Phillips make some really compelling replacements these days) and unplugged or automated all the energy sucking computers, amplifiers and networking gear around the house that don't get used daily. (I've been meaning to get around to that for years!!!) I also ended up researching and going to contract on a solar array (micro-inverters make solar a reality for many more roof configurations and the pricing of solar systems are at an all-time low due to the Chinese flooding the market with subsidized panels) so by the end of Feb. I'll be driving for free, doing my part to improve the planet, and in 4 yrs. will be cash positive on the (american made-Thank you Ford and SunPower!) solar array. The last time I priced solar it was a 15 yr. ROI so the time is NOW if you have any south or west facing roof areas).
I'm putting together a presentation for my local architect and builder community to educate them in the "all-in" approached needed to make this EV revolution really work. (In Northern California, it's not an if, it's a when). Feel free to PM me your info if you want to discuss this stuff in more detail.
-Robert Gilligan