Drove a leaf today

What fuelly added kWh support? when? how? Where (I don't see it).

Or are you saying do the conversion oneself and then enter it?

 

since 1 gallon of gas = 33.4 KWH I just use that to put in amount of gas instead of KWH

 

plus, I also fudged the data, I divided total KWH to date into 8 equal amounts. (8 months since I got my PIP)

 

I thought about using multiple fuelly profiles like you are doing now, but fuelly still doesn't work above 200 MPG. I have been lobbying to get some support from the guys at fuelly. You might want to add your own thoughts to the discussion.

mpg ceiling | Fuelly Forum

I have not solved all the problems with using fuelly yet. I marked my fillups as "partial" until I got them both in sync on Dec 31, 2012. I might try to sync by doing a gasoline fillup once a month so that I can see some monthly trending. I kinda expect my winter MPGe to drop significantly.

Next thing I will be trying to do is seperate motive kWh from comfort kWh (heating)

 

I used 33.7 kWh = 1 US gallon, also I try to use kWh measured at the wall to be consistent with EPA definition of MPGe.

Miles per gallon gasoline equivalent - Wikipedia, the free encyclopedia

 

As John Hatchett mentioned, many people can charge any EV using a 120V outlet if they are driving less than 30-40 miles a day.

I went my first 1.5 years charging my Volt at home using 120V for my 25 mile commute. Now that I have a longer commute I'm using 240V.

I know someone with an 85 kWh Tesla Model S with a 250-300 mile EV range who is charging at home using 120V. His commute is 25 miles and he can charge 50-60 miles of range per day between home and work so over time he can build up a charge for farther weekend driving.

 

that brings up a good point. Fuelly trys to address some of it with city vs highway ratio. I am asking them to add support for EV ratio when they add more support for plug-in. Perhaps we can coach them on capturing the PiP's average speed for each "fill up".

Join the discssion at:

mpg ceiling | Fuelly Forum

 

"

It was fast. Much faster then my PIP. It also seemed quieter vs my pip in ev mode."​

Having taken a pass on a reserved LEAF*, and driven them a reasonable amount, I think this falls ​

squarely into the "people like horsepower cerebrally, and ​

torque viscerally". It's a lovely thing about electric motors, even if the 0-60s are much the same.​

*Was thinking we'd stay a (nominally) one-car family, which would make the LEAF at times problematic. However, we kept the old stinkpot. Nonetheless, at this point I feel pretty good about it: the coming EVs will be so much better, whereas a hybrid will maintain much of its dual-fuel advantage. We will likely add a nice Model S or similar in a few years. (Also must mention the track record and reliability of the Toyota products I've owned vs Nissan and some other, ahem, makers.)​

 

oopsey, off by .3 KWH. Now I have to redo everything

 

.3 kWh is like 1+ miles of EV

 

To follow EPA procedure, you need to add charging loss (about 15%). So, 326 kWh * 1.15 = 375 kWh consumed.

375 kWh / 33.7 kWh (gallon equiv) = 11.13 gallon(e)

1,404 miles / 11.13 gal(e) = 126 MPGe (electric miles)

Your gas miles 807 divided by 18 gallons consumed = 44.8 MPG (gas miles)

 

We keep saying 15% but I don't think anyone has actually seen that in actual usage.
Generally people use just under 3 kWh at the wall to charge what Toyota advertises as a 2.7 kWh battery. That's 10% at worst.

But that speed is so bogus. If you sit in traffic for an hour going 10 mph but moving only 5 miles because it was stop and go and then drive an hour at 70 mph, it will say that your average speed was 75/2=37.5 mph. Does that really give you the correct picture?

Just to put some hard numbers on this, here are my trip meters since getting the car:
525 miles/66 mph
1050/18
398/15
395/51
180/16
349/68

Now, from these numbers, would you ever guess that the first trip (525 mi) contained 510 miles of highway driving at sustained speeds of 75-80 mph? Probably not. Or that every one of these trips contained highway driving at speeds above 70?

 

so just stick with city/hwy ratio ?

 

3 kWh with L1 or L2? I have seen Tracksyde and others measuring theirs with kill-a-watt. The figures ranged from 3.0, 3.1 to 3.2 kWh. So, 3.1 kWh out of 2.7 kWh (about 15%) seems like a good general number.

You have the more accurate Watts Up Pro right? Do you want to take some measurement and track the next time you reset your EV Driving Ratio screen?

 

we should probably change the terminology a bit. "loss" should be the 10-12% going from wall to battery, and something like "loss accounting conversion" for the 15% to convert from battery to wall consumption.

I come across this discrepancy when dealing with stock losses and gains.

A 50% loss requires a 100% gain to net out.

 

Efficiency will also vary with battery temperature. One more reason I enjoy the summer so much more

 

dang, you just knocked her down to 75.9 MPGe combined. no mercy

 

Priuskitty is still doing better than me. I am at 71.8 MPGe gas+electric composite but my EV is 40%.

 

PK is also a man, lol.

That's even more bogus. Does anyone really expect me to be able to keep track of this?

i always charge in a semi-public location and have never measured the power drawn from the wall personally. I was just recalling the numbers mentioned by others on the forum. I believe PK has almost always pulled below 3 and he charges from a regular wall outlet.

 

33.7 kwh per gallon of gas seems to be the most cited, but a given gallon of gasoline can have a range of values for BTU/gal. See table here: Gasoline gallon equivalent - Wikipedia, the free encyclopedia

Summer blend, winter blend, with ethanol, without ethanol...it varies from 32.83 kwh/gal to 33.4 kwh/gal.
This table uses 114,000 BTU/gal and says 33.4.
If you convert to 115,000 BTU/gal (a number I've seen in many places) you get 33.7 kwh/gal.