I'll play along with some figures which are all in USD. I'm in PG&E-land, aka Pacific Gouge & Extort, by some. Most of my EV charging is NOT at home (and would only be at very slow 120 volts), but rather for free at work. I do some charging at free public L2 charging on Fridays and/or weekends.
3/14/17 to 4/12/17, 284.203 kWh, $51.79, 18.2 cents/kWh
4/13/17 to 5/11/17, 298.9 kWh, $57.76, 19.3 cents/kWh
5/12/17 to 6/12/17, 301.333 kWh, $62.61, 20.8 cents/kWh
Note: On the first bill, I didn't deduct the $17.40 California Climate Credit (
California Climate Credit) that I received and that after adjustments amounted to $18.32 of credit on that bill. It looks like I'm going to get that credit again in an October bill.
The $ amounts I listed are my
total electric charges including all fees and taxes. I have no means of determining how much came out of the wall at home to charge my Leaf, but it's minimal anyway due to virtually no charging @ home. I'm doing about roughly 11K to 12K miles/year on my Leaf.
I'm on E-6 (
https://www.pge.com/tariffs/tm2/pdf/ELEC_SCHEDS_E-6.pdf, see pages 2 for rates and page 4 for definitions of the peak, partial peak and off-peak). E-6 is a TOU (time-of-use) plan.
On all of the above bills, I stayed within tier 1 (baseline). If I went beyond it and/or used a lot during peak times or a lot more during partial-peak, my bill would be a lot higher.
If one looks at page 2, the cheapest possible rate on E-6 during "summer" is off-peak baseline at 16.728 cents per kWh. The cheapest possible "winter" rate is off-peak baseline at 17.162 cents.
Simplest plan for us w/no-TOU is E-1. See page 1 of
https://www.pge.com/tariffs/tm2/pdf/ELEC_SCHEDS_E-1.pdf. I'm in area X, code B of
Understanding Baseline Quantities. So for a 30 day billing month, my "summer" baseline is 10.1 kWh/day or 303 kWh/month. For "winter", it's 10.9 kWh/day or 327 kWh/month.
So, if I were on E-1, first 303 or 327 kWh cost 19.9979 cents. The portions above that up until 1212 or 1308 kWh (101 to 400% of baseline, aka tier 2) cost 27.612 cents. Above that (aka tier 3), each kWh is over 40 cents.
Baselines for E-6 are the same as for E-1.
We also have per
Making sense of the rates other plans like EV-A, EV-B, ETOU-A, ETOU-B, which have different time and day bands than E-6.
I won't go thru all of them, but EV-A (meaning you have no separate dedicated meter for charging your EV only) is at
https://www.pge.com/tariffs/tm2/pdf/ELEC_SCHEDS_EV.pdf page 1. Definitions on page 4. Look at how horrific the rest of the times are.
PG&E has a comparison tool that projects how much your annual electricity rate would be if you switched plans. Currently, it claims I'm on the 2nd cheapest ($735/year for electricity) and that E-6 SmartRate is a bit less at $710/year (details in fine print at bottom of
About SmartRate). However, I've seen the tool flip flop on that (smart vs. no smart).
ETOU--A, EV-A AND E-1 are projected to cost somewhat more (ranges from $770 to $785/year). The worst by far for my usage pattern is ETOU-B at $910/year.
I'm glad I get free charging at work and have some free public L2 I can use, as well. At PG&E rates, driving an EV that's charged only at home w/o solar can get pricey.
Currently, Google says $1 USD = $1.30 CAD. I wish my electric provider were as cheap as the OP's.
I did a rough calculation on the OP's highest bill of $486.58 CAD (which is $374.57 USD) for 3328 kWh used and 14.6 cents/kWh CAD which is ~11.26 cents/kWh USD. If he were in PG&E-land w/my baseline and on E-1, it'd cost about $1140 USD or roughly an avg of 34.2 cents/kWh USD. In CAD $, that'd be $1477.84 and 44.34 cents/kWh.