DF33

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I have a unique setup in that when I added my Costpoint Charger to my garage, I didn’t have enough capacity on my existing electricity service, so I had to upgrade my electricity capacity. It turns out the power pole was right next to my garage, and the power company allowed me to put in a second service in my garage. The only thing on my second service is the Mach-E Charger. Hence, when I get the bill from Commonwealth Edison (ComEd), I know exactly how much it has cost me to run my Mach-E.

ComEd in Illinois allows you to pick how you want to pay for your power, so in July I switched to a variable pricing plan, which allows me to pay lower rates in the late evening/early morning hours. I have created a spreadsheet to track my miles, costs, power usage, temperature, miles per kWh, etc. and have uploaded it to the forum. For the true data geek, there is a lot of good data in the attached file. Some of the data has come from the Mach-E app, and some from ComEd . What makes the data particularly useful is that I have essentially only charged in my garage. I do mostly local driving, which, given I live in a Chicago suburb is a mix of highway and local streets. My driving is mostly in Whisper or Engage mode, and my Mach-E is a regular GT 2022.

The variable pricing for the power is pretty cheap at night. In the summer, I am running around 4-6 cents a kWh. Interestingly the delivery charges and taxes are more expensive than the actual power; delivery and taxes are running about 8 cents a kWh for a combined cost of 13 cents a kWh.
If you divide that number by the total driven, I am getting around 5 cents a mile. Looking at it another way, I have driven just over 3,000 miles for a total cost of $152.48 or, again, roughly 5 cents a mile.

A couple of things worth noting. The Ford app says that I have used 1,032 kWh, while COMED has me at 1,179 kWh. Not sure why there is so much difference. I trust the Mach-E numbers as there are some random power draws in the ComEd numbers, and I know I am not charging at those times. I have driven just over 3,000 miles during the period for an average of just under 3 miles per kWh. I did notice that I was getting well over 3 miles per kWh in the summer, and as the temps have dropped, my efficiency has dropped as well. In the spreadsheet, I show the average temp for the day, and you can see that once the temps hit the 50s, the efficiency dropped a lot.

I am curious to see what happens to my efficiency when the real Chicago winter hits. Would love to hear how this compares with other's experiences

 

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Mach-Lee

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The Ford app says that I have used 1,032 kWh, while COMED has me at 1,179 kWh. Not sure why there is so much difference.
Charging losses. 1032 kWh is what made it to the pack, 1179 kWh from the wall. So the charger is 87.5% efficient, which is nominal.
 
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DF33

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Charging losses. 1032 kWh is what made it to the pack, 1179 kWh from the wall. So the charger is 87.5% efficient, which is nominal.
Makes perfect sense, hadn't thought about that and I was thinking ComEd was ripping me off :).
 

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Not the same detail as you but ChargePoint app does a good job in tracking local cost and energy being sent to the car. Here is last winter. Cost showing is Canadian Dollar.
883D8AED-C610-4108-8F83-80C2B3C135D2.png
96A3AD75-718F-4FEC-9FA7-B676A8D2F14D.png
 

River Rat

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Interesting, I'm using 120v mostly at home because I'm moving but have to say my hydro bills (charging on weekends) have only gone up less the $10.
 


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That's a pretty good rate for ConEd. I bought solar panels last year and I pay a fixed cost of about eight and a half cents per kwh based on the panel output and loan cost (after incentives). PSE&G's rate is over eighteen cents.
 
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I track every paid for kWh as well.
But, maybe uniquely for me, I charge a lot for free at work. I plug into a 120v all day everyday, and I don't track that at all.
My workplace also has a ChargePoint installed that charges .40¢ an hour to a maximum of $1.20.
I use it occasionally for a big charge to get through a weekend.
A few times at home on my Grizzl-E.
And a few DC long road trips.
I'm just below 12,000km total driving in a year and am at $334.56 total for electricity.
.029¢ a km
 

MnSparty38

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For us data nerds, thanks for this. I also will have a separate dedicated meter & bill from my electric co only with my EV on it when my car gets here, so getting some ideas on what to track.

a good metric is ~3000 miles on $150 of electric. Today I filled up my ICE and will get 400 miles on $60, or 2800 miles for $420 in my ice. Nice amount of savings, and the benefit of being ‘full’ every day and not have to stop and fuel up.

I know gas prices are changing over the time of your analysis, and as you said winter may make that worse, but that’s an easy apples to apples comparison when someone with an ice asks.
 
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DF33

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Not the same detail as you but ChargePoint app does a good job in tracking local cost and energy being sent to the car. Here is last winter. Cost showing is Canadian Dollar.
883D8AED-C610-4108-8F83-80C2B3C135D2.png
96A3AD75-718F-4FEC-9FA7-B676A8D2F14D.png
I just looked at my Chargepoint App, and you are right it was pretty close in terms of total costs. I have never used the app, since I let the Ford App control the charging, but thanks for making me aware.
 
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DF33

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For us data nerds, thanks for this. I also will have a separate dedicated meter & bill from my electric co only with my EV on it when my car gets here, so getting some ideas on what to track.

a good metric is ~3000 miles on $150 of electric. Today I filled up my ICE and will get 400 miles on $60, or 2800 miles for $420 in my ice. Nice amount of savings, and the benefit of being ‘full’ every day and not have to stop and fuel up.

I know gas prices are changing over the time of your analysis, and as you said winter may make that worse, but that’s an easy apples to apples comparison when someone with an ice asks.
Clearly, the Mach-E will be less efficient in the cold, but the power costs in the winter will also go down somewhat, I am seeing prices the last couple of weeks at 2am of under 2 cents a kWh.
 

MnSparty38

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Clearly, the Mach-E will be less efficient in the cold, but the power costs in the winter will also go down somewhat, I am seeing prices the last couple of weeks at 2am of under 2 cents a kWh.
That’s actually the lowest rate, even for tod/TOU pricing I’ve heard. I was dancing that my rate from 9pm-9am, plus weekends will be around .045 per kWh.
 

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@DF33
I'm getting my MME in about 2-3 weeks - In Florida FPL has a program for $38/month they provide the charger, electrical outlet install and unlimited off-peak charging - I drive about 1000 miles a month

Based on your summary of $150 for 3000 miles - then I'm getting a good deal as you didn't mention the cost to get the electrical service installed but just the actual consumption

Thanks
 

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I am seeing prices the last couple of weeks at 2am of under 2 cents a kWh.
😮

wow, that's an incredible rate.
 

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@DF33
I'm getting my MME in about 2-3 weeks - In Florida FPL has a program for $38/month they provide the charger, electrical outlet install and unlimited off-peak charging - I drive about 1000 miles a month

Based on your summary of $150 for 3000 miles - then I'm getting a good deal as you didn't mention the cost to get the electrical service installed but just the actual consumption

Thanks
I looked into it. You have to have a garage. And it is a 10 year lease And check what they consider peak hours. It changes in winter and summe. It may work for you. I don’t drive that much and planning on getting a grizzl-e. Although 120 has really worked so far for me. But I did get a new electrical panel to support a charger.
 
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DF33

DF33

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That’s actually the lowest rate, even for tod/TOU pricing I’ve heard. I was dancing that my rate from 9pm-9am, plus weekends will be around .045 per kWh.
As I mentioned in my original post, the delivery and taxes are running around 8 cents per kWh, so the total is not as low as the power costs. ComEd actually gives you an hourly download, this is from Oct 22, you can see at 2am the power costs was $0.017. They don't show delivery or taxes, but still a very good deal for the electricity.

DataDateHourEndingkWhHourlyEnergyPriceCost
10/21/2022​
11:00 PM​
6.6925​
$0.033​
$0.223​
10/22/2022​
12:00 AM​
5.4675​
$0.038​
$0.207​
10/22/2022​
1:00 AM​
0​
$0.021​
$0.000​
10/22/2022​
2:00 AM​
9.3825​
$0.017​
$0.159​
10/22/2022​
3:00 AM​
9.505​
$0.023​
$0.217​
10/22/2022​
4:00 AM​
9.5​
$0.023​
$0.222​
10/22/2022​
5:00 AM​
9.4825​
$0.033​
$0.310​
10/22/2022​
6:00 AM​
9.4975​
$0.027​
$0.258​
10/22/2022​
7:00 AM​
2.68​
$0.047​
$0.126​
Totals
62.208​
$0.029​
1.72189​

 

 
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