Lifetime Average Wh/mi

[davecolene0606]

Wife just got a her Black Beauty S60 w/19"s and wanted the 21"s.
As a practical matter, I do way more driving and longer trips. We thought we'd get more bang for the buck with the 19s on the S85 and the 21s on hers. (At least on the calendar).

Incidentally, we got 12650miles out of the 21s (continentals) and got new ones when we switched wheels. The 21s got rotated once and I had Dania align once. Backs to front. The last 6000 miles drove me nuts as the back tires were cupped, so lots of noise when we put Em on the front.

We're got swap Em every 4000 this go around and see if we do better!

 

[wycolo]

> 4500 miles 311Wh/mi [lolachampcar]

A System Error has occurred: Unexpected Result!! :biggrin:

6 month (almost) report: WY 85 19 293 6659
--

 

[Sacrament055]

So far ~2000 miles at average 283 Wh/Mi on a 40/60 (I got mine May 18th so I've avoided the extreme temps so far)

 

[MassAmped]

5230 miles
384 Wh/mi
19"
p85

Here's a question....From when I took delivery in February, I consistently got about 370 Wh/mi on the highway when averaged on long distances. I installed 4.5 last week and then took a 200 mile trip and then a 600 mile trip. Over both of these I got 335 Wh/mi. My driving style didn't change nor did the load I put on the car. Has anyone else seen better highway mileage under the 4.5 update?

 

[brianman]

February, ... 370 Wh/mi
5 last week and then took a 200 mile trip and then a 600 mile trip. Over both of these I got 335 Wh/mi.

Weather change.

 

[jerry33]

Weather change.

^^^ This. Warmer weather always uses less power. A few reasons are: air is less dense, there is less heat required, cooling doesn't have the same power hit as heating, the lubricants in the drive train become thinner, and the tires are more flexible in warmer weather.

 

[Jeff Miller]

^^^ This. Warmer weather always uses less power. A few reasons are: air is less dense, there is less heat required, cooling doesn't have the same power hit as heating, the lubricants in the drive train become thinner, and the tires are more flexible in warmer weather.

While all of those things contribute, my understanding is that the main reason for worse performance at cold temperature is that the battery operates much less efficiently at cold temperatures than it does at higher temperatures because of higher internal resistance. This link says the decrease in capacity is linear with temperature and is something like a factor of 2 going from 80 deg F to 0 deg F:

Discharging at High and Low Temperatures Battery University

Somewhere earlier in this thread Zythryn had a graph based on his own measurements of wh/mile that was linear in temp (deg F) and showed wh/mile increasing by 2 wh for every one degree decrease in temperature.

I'm not an expert in battery chemistry though, so someone who is may wish to chime in...

 

[jerry33]

This link says the decrease in capacity is linear with temperature and is something like a factor of 2 going from 80 deg F to 0 deg F: Discharging at High and Low Temperatures Battery University

Correct, but capacity reduction isn't the same thing as efficiency reduction, which was what I was referring to. There is a capacity reduction and presumably a maximum power reduction as well because maximum power relates to capacity.

 

[mckemie]

280 wh/m at 6k+ miles in Texas. Took delivery in March so I have so far avoided cold weather. We're starting to use air conditioning and I'm surprised by how little energy it uses. Maybe 15-20 wh/m.

 

[jive_devil]

Happy to join as entrant #100, and I will round it out with a nice capture when I hit 1000 miles driven:

jive_devil
60 kWh
CA
19" wheels
1000 miles
308 Wh/mi
307.8 kWh Total Energy spent

More recently, however, my average is about 282 Wh/mi though now that I'm into the "normal" commute routine.

Here'e my summertime update:

2500 miles
300 Wh/mi
746 kWH Total Energy spent.

I drive about 70-30 highway/streets and almost always with the AC on.

 

[gg_got_a_tesla]

As opposed to the winter cold, the summer heat has been taking a toll even here in NorCal. Heavy A/C use, particularly after the car's parked out in the sun, is chipping away at my 60's range. All things being equal (driving style, terrain, etc.), that's been a big factor of late in making my lifetime average creep up in the past few weeks from 319 to 321 Wh/mile at 8,300 miles now. I've found it hard to keep it under 340 Wh/mile on any given day of late.

gg_got_a_tesla CA 60 19" 321 Wh/mile 8,300 miles

 

[brianman]

In case it's of interest, daily stats for P85+ Loaner (with Michelin tires). The "SINCE LAST CHARGE" is my stats for the day. Given that the vehicle started with a range charge, it seems there was quite a bit of vampire during the day. If we use 320 Wh/mi. as the rated consumption, then that maps to 10.56 kW above reserve. Combining with the day's reported consumption yields 70.36 kWh. That's quite a bit less than 85 kWh, even if you leave some room for the reserve.

 

[Jeff Miller]

Total_miles 533006

Total_drivers 119


wh/mile
avg 349
median 346
stdev 37
dist_wt_avg 346

State


State Wh N Miles
1 AB 296 1 235
2 AK 376 1 3285
3 AZ 329 6 17388
4 BC 342 1 7200
5 CA 341 36 171142
6 CO 354 4 14512
7 FL 320 5 34326
8 GA 316 3 22812
9 IL 362 13 37448
10 IN 354 3 14412
11 MA 364 2 6130
12 MD 372 1 17064
13 MN 384 3 13224
14 MO 327 1 9605
15 NC 364 1 7623
16 NJ 381 3 9239
17 NV 301 1 5000
18 NY 368 2 8762
19 OH 381 1 6028
20 ON 381 1 2112
21 OR 418 3 5251
22 PA 370 2 15149
23 QC 326 2 8474
24 TX 321 7 38002
25 UT 357 1 2015
26 VA 343 3 9019
27 WA 378 10 32490
28 WY 293 1 6659

Battery


Battery Wh N Miles stdev
1 40 326 2 2750 61
2 60 315 19 53050 25
3 85 356 89 423990 35

Wheels


Wheel Wh N Miles stdev
1 19 337 62 239836 36
2 21 364 37 189425 34

Battery and Wheels


Battery Wheels Wh N Miles stdev
1 40 19 283 1 2000 NA
2 60 19 315 19 53050 25
3 85 19 347 41 179907 35
4 85 21 364 37 189425 34

By Battery, State, and Wheel:


State Battery Wheels Wh N Miles
1 AB 60 19 296 1 235
2 AK 85 19 376 1 3285
3 AZ 60 19 331 2 2500
4 AZ 85 19 309 1 4250
5 AZ 85 21 318 2 9888
6 CA 60 19 307 8 29410
7 CA 85 19 331 9 45553
8 CA 85 21 361 14 71595
9 CO 85 19 346 2 8900
10 CO 85 21 343 1 2765
11 FL 85 19 338 1 5165
12 FL 85 21 317 3 15176
13 GA 85 19 309 2 11812
14 IL 40 19 283 1 2000
15 IL 60 19 328 2 8790
16 IL 85 19 365 5 12114
17 IL 85 21 384 4 12744
18 IN 85 19 330 2 5412
19 MA 85 19 384 1 5230
20 MA 85 21 345 1 900
21 MD 85 21 372 1 17064
22 MN 60 19 367 1 1015
23 MN 85 19 384 1 7100
24 MN 85 21 401 1 5109
25 MO 85 19 327 1 9605
26 NC 85 21 364 1 7623
27 NJ 60 19 340 1 900
28 NJ 85 19 380 1 4739
29 NV 60 19 301 1 5000
30 NY 85 19 368 2 8762
31 OH 85 19 381 1 6028
32 ON 85 19 381 1 2112
33 OR 85 19 397 1 1565
34 OR 85 21 426 1 3000
35 PA 85 21 370 2 15149
36 QC 60 19 310 1 3000
37 TX 85 19 325 4 17209
38 TX 85 21 339 1 11793
39 UT 85 19 357 1 2015
40 VA 60 19 309 1 1000
41 VA 85 21 342 1 3600
42 WA 60 19 294 1 1200
43 WA 85 19 371 3 12392
44 WA 85 21 404 4 13019
45 WY 85 19 293 1 6659

Data


Wh Miles State Battery Wheels N LastUpdate
aaron.s 352 7000 NY 85 19 1 05/13/13
Al Sherman 313 2531 IN 85 19 1 o
Andrew Wolfe 333 4600 CA 85 21 1 05/13/13
AnOutsider 409 8567 PA 85 21 1 05/13/13
araxara 297 7969 AZ 85 21 1 06/07/13
Banahogg 310 4500 CA 60 19 1 06/11/13
bbmertz 348 2200 CA 85 NA 1 o
Beavis 343 2765 CO 85 21 1 o
Ben W 370 5000 CA 85 21 1 o
Bifff67 377 4419 VA NA NA 1 o
bigsmooth125 299 4000 TX 85 19 1 05/23/13
bob_p 326 3000 TX 85 NA 1 o
bosgig 345 900 MA 85 21 1 o
Brad-isa 365 1490 IL 60 19 1 o
brianman 415 7084 WA 85 21 1 06/06/13
BriansTesla 294 1200 WA 60 19 1 06/14/13
BryanW 357 2015 UT 85 19 1 06/09/13
Bucket22 387 1244 IL 85 21 1 o
captain_zap 385 4004 WA 85 21 1 o
Cattledog 348 6400 TX 85 19 1 o
ChadS 361 6000 WA 85 19 1 o
Chgd Up 353 8400 <NA> NA NA 1 o
ckessel 426 3000 OR 85 21 1 o
Cliff Hannel 345 4100 CA 85 19 1 o
Darmok 301 5000 NV 60 19 1 06/01/13
davecolene0606 310 13985 FL NA NA 1 06/15/13
David Trushin 378 1100 IL 85 19 1 o
DavidM 338 5165 FL 85 19 1 05/19/13
ddenboer 346 13000 CA 85 21 1 o
dfitz206 331 4625 WA 85 19 1 05/28/13
dflye 364 7623 NC 85 21 1 o
digitaltim 372 17064 MD 85 21 1 o
dlmorgan999 397 1565 OR 85 19 1 o
drbradfo 430 686 OR NA NA 1 o
drp 339 6100 IL 85 21 1 05/13/13
dtich 402 1300 CA 85 21 1 o
dwegmull 308 1800 CA 85 19 1 06/14/13
EarlyAdopter 415 1373 WA 85 21 1 o
eelton 404 1100 IL 85 19 1 o
efusco 327 9605 MO 85 19 1 05/31/13
ElSupreme 341 7500 GA 85 19 1 06/07/13
FlasherZ 403 1900 IL 85 21 1 o
fluxemag 369 750 AZ 40 NA 1 06/11/13
GeekGirls 316 6437 CA 85 19 1 05/13/13
gg_got_a_tesla 321 8300 CA 60 19 1 06/17/13
gregincal 326 2200 CA 85 19 1 o
gtimbers 330 900 CA 85 19 1 o
huntjo 380 2847 CO NA NA 1 o
ibcs 381 6028 OH 85 19 1 o
IlliniT 291 7300 IL 60 19 1 06/07/13
Jason 339 11793 TX 85 21 1 05/13/13
Jason S 351 4334 CA 85 NA 1 o
jchangyy 323 1800 CA 85 19 1 o
Jeff Miller 326 1662 IL 85 19 1 06/06/13
jerry33 263 5109 TX 85 19 1 06/01/13
jhs_7645 399 558 WA 85 21 1 o
jive_devil 300 2500 CA 60 19 1 06/16/13
jjaeger 363 3974 CA 85 19 1 o
johndoe74 309 4250 AZ 85 19 1 06/08/13
johngray 391 4879 WA NA 19 1 o
jomo25 316 1000 AZ 60 19 1 05/13/13
jpasqua 290 2216 CA 60 19 1 06/02/13
jweinstein 376 3285 AK 85 19 1 05/26/13
kaivball 340 1400 CA 85 21 1 o
kcveins 355 5552 IL 85 19 1 05/13/13
Kipernicus 320 2185 CA 60 19 1 o
Kklabunde 347 2881 IN 85 19 1 o
kvietor 301 9076 FL 85 21 1 o
lholtzman 364 2700 IL 85 19 1 o
Lloyd 354 6467 CA 85 21 1 05/13/13
lolachampcar 311 4500 FL 85 21 1 06/15/13
mark 391 1700 TX 85 19 1 o
MassAmped 384 5230 MA 85 19 1 06/15/13
matthew.johnson 407 3500 IL 85 21 1 o
mckemie 280 6000 TX NA NA 1 06/16/13
mcornwell 351 4074 CA 85 21 1 o
meduri 330 11000 GA NA NA 1 o
Michael S 290 3915 CA 60 19 1 o
MitchL 383 3300 CA 85 21 1 o
mnx 381 2112 ON 85 19 1 o
Model S P 338 1919 AZ 85 21 1 05/23/13
Nathan Smith 331 6582 PA 85 21 1 06/01/13
neroden 383 1762 NY 85 19 1 05/13/13
Nickjhowe 340 1600 FL 85 21 1 o
NJS1207 424 3600 NJ 85 NA 1 o
pbrulott 310 3000 QC 60 19 1 06/11/13
pilotSteve 422 1767 WA 85 19 1 o
Psullivan 333 7885 CA 85 21 1 05/13/13
qphan79 292 4740 CA 60 19 1 o
raptorweb 401 5109 MN 85 21 1 o
rcc 365 3500 CA 85 NA 1 o
rlcordeiro 358 6600 CA 85 NA 1 o
Sacrament055 283 2000 IL 40 19 1 06/15/13
smd 369 7950 CA 85 NA 1 05/13/13
Sparrow 277 4312 GA 85 19 1 o
spatterso911 354 2000 CA 85 21 1 o
StephRob1 387 4938 CA 85 21 1 o
StephRob2 336 1054 CA 60 19 1 o
stevezzz 326 8900 CO 85 19 1 06/15/13
SuperCoug 368 1000 WA NA NA 1 o
tdiggity 345 760 CA 85 21 1 o
tesla2012 346 1500 AZ 60 19 1 06/11/13
tezco 366 NA CO 85 19 1 o
Tomanik 296 235 AB 60 19 1 05/18/13
Tommy 325 18134 CA 85 19 1 06/08/13
Toto_48313 341 5474 QC 85 NA 1 05/31/13
Treker56 309 1000 VA 60 19 1 05/25/13
Vern110 407 1800 IL 85 NA 1 o
Vexar 367 1015 MN 60 19 1 o
Vger 342 7200 BC 85 NA 1 06/07/13
William13 403 9000 IN 85 NA 1 05/13/13
wraithnot 339 6208 CA 85 19 1 05/12/13
wycolo 293 6659 WY 85 19 1 06/15/13
XK8driver 342 3600 VA 85 21 1 o
xray 378 6515 CA 85 21 1 06/05/13
yobigd20 380 4739 NJ 85 19 1 o
youlikeadajuice 340 900 NJ 60 19 1 o
Zextraterrestrial 373 10356 CA 85 21 1 06/07/13
Zythryn 384 7100 MN 85 19 1 o


wh.m.deciles
0% 263
10% 299
20% 315
30% 330
40% 340
50% 346
60% 358
70% 370
80% 383
90% 402
100% 430

 

[Zythryn]

Update for Zythryn

85 kWh 19" wheels 12579 miles 358 Watts/mile
&
60 kWh 19" wheel 1405 miles 282 Watts/mile

Or in the above format:

358 12579 MN 19
&
282 1405 MN 19

 

[Klaus]

60 kWh 19" 1122 mi 323 W/mi Cahlifohnia ;-)

 

[mckemie]

Sorry, I failed to report 19" wheels, 85kwh battery.

Currently, 278-279 wh/m at about 7200 miles.

Using air conditioner about half the time; many morning trips where cooling is not needed. I estimate the cost of cooling to be about 20wh/m.

 

[J in MN]

First report.

J_in_MN 294 591 MN 60 19 1 06/30/2013

 

[efusco]

Drove over 3000 miles in June! Over 100 miles per day. 3-4 longish trips, but mostly a lot a hell of local driving and running around of kids. My lifetime avg. Wh/mi continues to fall (in just 2 months it went from 340 Wh/mi to 320. And averaging just under 300Wh/mi for the month without really trying ain't too shabby. At right at 7 months and a bit over 12,500 miles my car goes to St.Louis for it's first service appt. on Tuesday.

 

[Treker56]

Update:

Lifetime avg at 2,000 miles: 305 Wh/mi
~June: 302 Wh/mi

S60, 19", Pano, Tech, Air, Jump seats.

 

[toto_48313]

Here is my update with June numbers:
1508 mi , avg 311 Wh/mi

Still 21" inch since march 15th... P85.

overall: 6,992 mi 334 Wh/mi

July will be a long trip so may bring different results...