Got my Killawatt equivalent on the weekend.
Good thing too - the car is way more efficient than I
estimated before!
I estimated electricity use based on the nominal 120vac draw listed on the tag on the 24v/5A charger. But charger current tapers down as the batteries charge, so its average current is much less than nominal. Also, the charger switches on/off regularly (thermal protection) when supplying the first (highest current) part of the charge.
I wouldn't have clued in to either of these things without the energy meter.
So...
23.x hours per charge for 24.8 km travelled
5.1 kwh consumed (per the Killawatt) using the 24v/5A charger
@ 6 cents per kwh (standard Ontario energy mix rate - Ivan's house)
0.306 $ per charge
24.8 km/charge
0.012399 $ per km
1.2 cents/km
@ 9.1 cents per kwh (100% renewable energy rate - my house)
0.4641 $ per charge
24.8 km/charge
0.018714 $ per km
1.9 cents/km
Compare to gasoline cost for the Blackfly @ 75 mpg (US) & $1 / L ...
3.14 L/100 km (3.14 = 75 mpg (US))
0.0314 L/km
1 $/L
0.0314 $/km
3.1 cents/km