Stopped Keeping Statistics or "How I Stopped Worrying and Learned to Drive my Car"

Stopped Keeping Statistics or "How I Stopped Worrying and Learned to Drive my Car"

I am a data whisperer in real life. My goals are based on bringing out the stories embedded in information and turning those stories into a better bottom line.

After delivery, every ride I took was recorded. The mileage, energy usage, speed and temperature were captured for nine months. The illegible scrawl in small notepads, on receipts, unsuspecting bags (and even my limbs) was written down and eventually converted into "how far can we drive in circumstance X."

No more.

Gave it up.

Found that there was no need.

Why? After over 26,000 miles I have consistently arrived at my destinations safely. Invigorated. Excited. Looking forward to the next ride.

Anyone else stop worrying and learned to drive their car?

:) GRIN!

Rick's2013ModelS | 26 juillet 2014

Great post and I am there with you.
After 1 full year of ownership in all conditions I don't even think about range anymore, just get in and drive.
In fact I can't remember the last time I had the energy screen on.

J.T. | 26 juillet 2014

@madbuns +1 I also don't sweat my battery health either. Keep it charged from 50-70% and have it plugged in when home.

It's a worry free car if you just stop worrying about it.

sbeggs | 26 juillet 2014


On the 5,236 mile West Coast/Canada trip, where we were traveling off the Supercharger highway, we used EVTripPlanner to calculate every leg's elevation and rated miles compared to regular miles. We religiously kept logs of every time we supercharged, involving times of arrival and departure, odometer readings, kW used, Wh/mi, amps and volts and rate of charging, etc, etc, etc.

Over the two months, we arrived at a subtle change, though, from not wanting to go very far from the 110V outlet at our hotel in Hood River, to realizing that the number of charging points was as vast as the number of grains of sand on a beach, that charging opportunities were everywhere.

Upon returning home June 22, 2014, all the record keeping of charging ceased (thankfully). We just plug into our 14-50 and, the next morning, enjoy driving. Now instead of feeling that the T is an untested, unknown car, we can wield it more skillfully.

However, all this scientific energy had to go somewhere.

I have started a new chart to track the monthly billed electrical usage on SDGE Time of Use periods vs. the baseline allowance we had til December of last year. They just sent us a notice stating that peak noon to 6 p.m. will cost $.49 per kWh, off-peak $.20 and super off-peak $.16.

So far the data shows we are at $.05 per mile vs. $.25 for our V-8 ICE machine.

But there's no need to quantify the joy we feel each time we hop in the T.

Thomas N. | 26 juillet 2014

Southern California Edison also just quietly raised their rates. I'm too lazy to look it up but I did note that in the four-tier system the fourth tier jumped from .31 to .32 per kWh but I think that the tier one base rate jumped from .10 to .15 per kWh! I'll check it out later tonight to make sure I'm posting relevant information.

I work from home so TOU is not going to work for me and I'm stuck on the standard residential plan. That's why I'm now really taking a closer look at solar since I'm in SoCal and have a huge South-facing roof surface.

Back to the OP's point, I don't track much anymore. On long trips I like to see how many actual miles I can get on a charge, I like to see how quickly I can put on miles at a Supercharger, and I like to see what it costs me monthly to charge it at home versus what I used to spend on gas (about $60 a month in electricity versus $190 per month on gas).

Other than that I just stomp the pedal every chance I get and enjoy the hell out the best car I've ever owned.

renwo S alset | 26 juillet 2014

Range??? That's something in the kitchen that my wife sweats over. Me? I can't cook a lick. 11 months and anxiously awaiting my first contact with Tesla service (curiosity mainly).

Thomas N. | 26 juillet 2014

No shield, Owner?

renwo S alset | 26 juillet 2014

Haven't worried about it. Figured I'd get it at my annual.

NKYTA | 26 juillet 2014

@madbuns, I couldn't agree more. I've stopped recording - just drive.

Thom EM | 26 juillet 2014

Same here! Slaintè! | 26 juillet 2014

@NKYTA +1000!

Bighorn | 26 juillet 2014

I kept similar records for my trip west--my CA detailer lost the coming and my wife the going, hence an enforced ennui regarding statistics.

proven | 26 juillet 2014

@Thomas N.

Upside to living in CA... all those super chargers.

Downside to living in CA... those electricity rates, yikes!

Captain_Zap | 26 juillet 2014

I abandoned my spreadsheet over a year ago. | 26 juillet 2014

+1 madbuns

wamochi | 26 juillet 2014

@sbeggs- I'm in San Diego also. When does the peak pricing go up to 49c? We just started a month ago on TOU and thought it was 44c for peak?

sberman | 26 juillet 2014

@Thomas N., I'm looking at the Southern California Edison page now and see the following rates:

Tier 1: 14¢
Tier 2: 18¢
Tier 3: 30¢
Tier 4: 33¢

Depending on your specific needs, Southern California Edison offers EV rates. See:

SoCal Buzz | 26 juillet 2014

SDG&E raised the peak summer rate twice. Once about 7 weeks ago, and I thought the letter said 2nd was coming in August. The notification actually came after 1st increase. Ridiculous how high it is from 12-6. I changed pool pump timing, AC, etc.

SoCal Buzz | 26 juillet 2014


5am to noon = .20
Noon to 6 = .44
6 to 12am = .20
12am to 5am = .16

And the .44 is going up again.

Gen3Joe | 26 juillet 2014

Sir you can't let him in here. He'll see everything. He'll see the big board!

DonS | 27 juillet 2014

I keep a few notes on energy usage for some common trips at slow, normal and fast speeds. This gives me a point of reference on whether I need to be cautious when traveling somewhere I don't usually go.

xradr | 27 juillet 2014

@ madbuns,

Love the Strangelove reference!!!

Agree, I stopped being super detailed/neurotic around 12-13K. It has been liberating.

sbeggs | 27 juillet 2014

@wamochi, @SoCalBuzz,
Yes, we received the letter yesterday indicating that SDGE TOU rates will rise to 49 cents for peak times noon to 6 p.m. on August 1. Then in November the winter rates will kick in.

Doing laundry at 3 a.m.! (Could not sleep).

KdotB | 27 juillet 2014

I feel like the estimated range in the middle of the dash is like a ticking time bomb, slowly counting down to doom.

But I'm on a 110.

And I average at least 100km (60+ miles) a day. 30+ hours to recharge. Simple math.

Am in a rental, and after 3 days of ownership I give up. Even though there are a number of charging stations around, I've gotta bite the bullet and install a 14-50 for the 4 months I have left here. Hopefully then I can experience the same freedom as you guys!

sperber53 | 27 juillet 2014

49 cents/kwh ... holy crap that is more expensive than in Germany.

johncrab | 27 juillet 2014

It continues to fascinate me that so many of us are professional and scientific types. Analysis is always good. It proves or disproves held beliefs if we are just open to the sheer beauty of numbers and their meanings. Knowing when this is no longer a fruitful enterprise is also part of the scientific approach. We call that proving a Law. I also loved the sideways alluding to Dr. Strangelove here. Stanley would be proud.

Thomas N. | 27 juillet 2014

@Thomas N., I'm looking at the Southern California Edison page now and see the following rates:

Tier 1: 14¢
Tier 2: 18¢
Tier 3: 30¢
Tier 4: 33¢

Depending on your specific needs, Southern California Edison offers EV rates. See:

Yep, I'm familiar with those rates. They actually jacked them more than I thought. I believe Tier 4 used to start at .10 and Tier 4 maxed out at .31. It's crazy because we have what I would call a normal household and within a week we're already out of Tier 1 and the fun begins.

Their EV rates have always been a joke. You need a dedicated meter put into your house to take advantage of it. SCE will give you the meter for free but you must have it installed and they told me that cost can range from $3000 to $7000. They were right. I had only one bid but it was $3700. I think the ROI would be something like 10 years with the small amount of miles I drive (under 10K per year) so back to the residential plan for me.

Anyway, I have hijacked this thread enough. I have many posts about SCE over on the SoCal forum.

Thomas N. | 27 juillet 2014

@sberman -

I just pulled the rates of the SCE page:

Tier 1 Rate Tier 2 Rate Tier 3 Rate Tier 4 Rate
15 ¢ /kWh 19 ¢ / kWh 28 ¢ / kWh 32 ¢ / kWh

These are as of July 7, 2014. They just raised them. Not sure where you pulled your numbers.

nbrianjohnston | 27 juillet 2014

In British Columbia, Canada electricity is 7.52¢ a kWh up to 1350 kWh monthly and then it goes up to 11.27¢ a kWh for over 1350 kWh. 25,000KM of driving per year should cost around $500 or less.

All public chargers in BC are free, although some places charge for "parking", but the electrons are free. My wife wonders how long it will take me to stop flipping the bird at gas stations, as we cruise sliently past.

Bighorn | 27 juillet 2014

Funny, but the TV news guy that interviewed me said, "What are you, a scientist or something?" I told him no, but remarked that the car had really attracted a lot of engineers and doctor types. Not to be smug, but I imagine the average Tesla owner probably wouldn't have much trouble qualifying for Mensa (I didn't say that last part). :)

proven | 27 juillet 2014

Flat $0.10 rate here... feeling awfully lucky.

mrrjm | 27 juillet 2014

I'm with a ComEd reseller in Illinois. $0.0475/kw. Add distribution charges etc. and $.091-.11 as the final cost.

johncrab | 27 juillet 2014

@Bighorn - We do seem to be an eclectic group here. The conversations use polysyllabic words and those "fact" things which some find so troublesome are front and center. I see scientific method of analysis in a great many posts and it's a thrill to come here and read the input and experiences of others.

johncrab | 27 juillet 2014

Electricity rates....

I have been living (comfortably) with a peak pricing plan since 2007. I not only have a time of day factor but a peak demand within that peak period. This forced some very positive changes. I replaced my SEER 16 HVAC system with a SEER 24 system. It was due for replacement. I replaced all of my lighting with LED bulbs. I recycled an old, inefficient refrigerator and replaced it with an EnergyStar model. Then I put in a house controller which turns on lights based on sunrise and sunset, controls the pool pump and acts as a load controller to drop off load during peak hours. It even watches to see if key appliances are turned on during this time period and shuts them down immediately if someone forgets. It also locks out a number.

I wrote all of the code myself and can even control my house from my phone when sitting in a bungalow in Bora Bora. This is all off-the-shelf stuff.

Under this new plan I cut my energy use by 54% and my energy cost by 61% over the old plan and we have had five rate increases since 2007 to factor into this. Adapting to a peak plan is easy when you can see the results in one's pocket at the end of each month. It takes some discipline but that is rewarded handsomely and the lifestyle changes are minimal.

You can do this. You can use the utility's plan to your advantage.

Thomas N. | 27 juillet 2014

Replacing our HVAC is next on the list. We have a system that came with the house when we bought it new. That was 15 years ago. My how time flies. I don't even think they had the SEER system back then but it makes up the bulk of our bill in the summer when it runs quite a bit. I've looked at some Trane systems with 21 SEER ratings but I've never been able to find hard data on how much that translates to savings on a monthly bill.

Good to hear that you lowered yours substantially.

wamochi | 27 juillet 2014

@sbeggs- thank you!

Mike83 | 27 juillet 2014

It only took us 2 months to stop the data collection with altitudes, distance, temps, etc. I did that enough in research at work(medical biotechnology). Driving at about 306 now with some high speeds but enjoy driving for pleasure with the fantastic sound system. I have never enjoyed driving and vacations this much in my life. Super dependable.
Fill up points at every place we stayed. No worries and the SuperChargers are a pleasure to visit.
Also we have Solar PV and have not paid for electricity for two years now. A little tip: get a hybrid electric water heater as it cuts down on electricity by 60%. The learning curve was fast for us.

Dramsey | 27 juillet 2014

I think most new Tesla owners will be nervous about range issues until they become more familiar with the car. I live in Reno and drive the San Jose frequently; when I received my car in September 2013, the only Supercharger on the route was in Folsom, about 177 miles away. The first time I drove back from Folsom-- on a full charge-- I was very nervous as the "predicted" range on the energy graph quickly dropped below the actual range due to the long uphill at first (going from about sea level to 4,500 feet).

After things leveled off I made it back with about 40 miles of range to spare.

Now that I've done it many times, I know that I can easily make it with plenty of range left over. Heck, with the new Roseville and Vacaville superchargers, I'm spoilt for choice.

13.5¢ per kWh here. NV Energy does have a tiered rate plan I may look into which offers night rates as low as 5.5¢/kWh.

sberman | 27 juillet 2014

@Thomas N.,

This is going to be my first attempt at posting an image on this forum. Hopefully it will work.

Anyway, I logged on to the Southern California Edison webiste, and went to my account. That is where I saw the info below.

Might the tier rates be different for different regions in Southern California? I don't know. But the data I'm showing is fresh from today.


sberman | 27 juillet 2014

Actually, I'm reading a paragraph in the above image that says:

"Tiers are calculated based on factors such as the climate where you live, the season, and whether your home is all electric or a combination of electricity and gas."

That might explain the difference we're seeing in the tier rates.

Brian H | 27 juillet 2014

Imagine if the utilities had a product they wanted to sell more of!

Thomas N. | 27 juillet 2014

I just went right to their rates page. You don't need to sign in to see it:

You'll notice that even that graph like yours above has different numbers in it. I suspect that those are just sample bills and not actuals.

I think the rates are universal for everybody on the residential plan within SCE but I will readily admit I know very little about the utilities and how they operate.

SoCal Buzz | 27 juillet 2014

There are geographic tiers that overlay. Most expensive on the coast and declining in 3 levels until you hit the desert. Seems backwards, but must be because of population density and transmission cost increases on the coast.

madbuns | 29 juillet 2014

Thank you all for sharing your experiences.

Now I will go find other things to analyze...

...that are unlikely to be as fun to drive...

:) GRIN!

staze | 29 juillet 2014

@Thomas N. & sberman

Check out this page with SCE EV rates:

For easier reference: Rates with single meter, house & EV (this is what I have)

Rates with a dedicated meter for the EV (about $3k for electrical work, meter is free)

The lower EV rates have helped me save money. I schedule AC towards the evenings now, time my dishes after midnight and run the washer dryer at night too. I'll likely switch to solar in 3-5 years so the game will only last so long.

staze | 29 juillet 2014

Darn. I posted the images incorrectly. Grrr. Sorry about that guys. Hopefully the edit post button will arrive with v6.0.

Thomas N. | 29 juillet 2014

Yep. That's where I pulled my numbers from.

Larry@SoCal | 29 juillet 2014

(This thread concerning not keeping statistics certainly detoured.)
The OP observations are so right; notes and figures all over the place...for a while. Now I simply drive and enjoy my Tesla.