Miles per kwh so far... my calcs vs. the LEAFs calcs

[kolmstead]

Based on what I've seen so far, and what mwalsh and others like Malcolm have reported, I think that the day I get my (just ordered) TED going will be my last visit to Carwings rating page. Maybe Nissan decided to adjust the ratings for PR purposes, but I have a problem with seeing people report 4 mi/kwh, and Carwings call it 6 mi/kwh. What's the point of that?

As DeaneG suggests, any numbers I report will be AC kwh per mi.

-Karl

[DaveinOlyWA]

this thread is the reason why i am using my Killawatt.

got 80 miles on it so far (some was done by dealer) it was just about fully charged when i picked it up last night.

drove 47.3 miles, plugged in put in 14.68 (per the KAT) did not get a full charge drove it 20.8 miles today and have it plugged in.

so wont know my mpk rating until its charged up. car says 3.7 mpk so far.

KAW= Kill-a-watt meter
mpk= miles per killowatt hour

[garygid]

I thought my Kill-a-Watt meter was "limited" to 15 amps,
good for measuring L1 usage.

Will it work at 16 amps, with a spike to 18 amps (for L2 usage)?

[Spies]

Will it work at 16 amps, with a spike to 18 amps (for L2 usage)?

Certainly not the Kill A Watt I have.

For monitoring only the L2 EVSE someone on a budget might consider the TED 1000 instead of the TED 5000. Not sure its worth the savings though. Perhaps someone else might have an opinion on that.

[planet4ever]

Based on what I've seen so far, and what mwalsh and others like Malcolm have reported, I think that the day I get my (just ordered) TED going will be my last visit to Carwings rating page. Maybe Nissan decided to adjust the ratings for PR purposes, but I have a problem with seeing people report 4 mi/kwh, and Carwings call it 6 mi/kwh. What's the point of that?l

I just posted something under "Range Question" that perhaps would have been more appropriate here. What is Carwings measuring, anyway? Could it be only the electricity going to the inverter and motor, so that it doesn't include anything used for heating or cooling?

[garygid]

And, maybe CARWINGS is only using energy recovered from the battery, which might be only 80% (or 90% for low speeds and gentle acceleration) of the energy put into the battery when charging?

Then, the "from wall" energy is even greater, primarily due to losses in the charger (5%, perhaps up to 10%).

[LEAFer]

My Kill-A-Watt is showing 11.75amps, 120.5Volts steady state (+/- a little). (charging L1 with trickle charger from trunk.) So that's basically a little over 1,400 watt.

[garygid]

Sounds right with the L1 "brick" (EVSE) "offering" 12 amps to the car (a 20% duty cycle PWM square wave Control Pilot signal).

Now, use the L1 on a 20-amp circuit and increase the offering to 16 amps (26.7% duty cycle), and ... we would have a faster trickle, around 15 hours instead of 20 hours!

[evnow]

Carwings should show what the car shows - no reason to show something else. It's a bug that needs to be fixed.

[Googler]

The number of $0.075/kwh is what makes it cheap. By contrast, PG&E customers get an off-peak rate of $0.05-$0.18/kwh, depending on the amount they use. The downside is the peak time rates for my other electricity would go from $0.38 to $0.55/kwh air conditioner and for my pool pump and solar heater to run when it's sunny.

PG&E rate schedules are so complicated that it's difficult to estimate what electricity will cost. The problem is that you will be upping your usage considerably, which puts you in higher price tiers.