Calculating cost of home charging

[Almondtree]

I've seen people mention in various threads that it costs them $X to charge at home for the mileage they've put on their MME. I'm curious how to determine that.

I bought my MME late December 2023 so I haven't had it six months yet, and I've only ever charged it at home. I immediately had an electrician run a 50amp circuit to my garage and installed the charger that came with the car. I use the car for commuting to my job almost exclusively, plug it in Friday night, charge to 90%, and it's ready for another week. I've looked at my electric bill, comparing my overall KWh pre-charger to the last 5 months or so, but there's so much fluctuation in the overall KWh I use on a monthly basis depending on various factors- which or how many of my kids are in the house for any length of time, outdoor temperature, whether we've had house guests, etc.

How do people determine what it's costing them to charge their EV when charging it exclusively at home?

Sorry if there are other threads on this, I looked but not finding anything on point. Thanks.

Wow. Thanks for that. I always wondered how much it cost. For the month of May, it calculated to $29. If I had used gas, it would have been at least $100!!!

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[Londonboy49]

I've seen people mention in various threads that it costs them $X to charge at home for the mileage they've put on their MME. I'm curious how to determine that.

I bought my MME late December 2023 so I haven't had it six months yet, and I've only ever charged it at home. I immediately had an electrician run a 50amp circuit to my garage and installed the charger that came with the car. I use the car for commuting to my job almost exclusively, plug it in Friday night, charge to 90%, and it's ready for another week. I've looked at my electric bill, comparing my overall KWh pre-charger to the last 5 months or so, but there's so much fluctuation in the overall KWh I use on a monthly basis depending on various factors- which or how many of my kids are in the house for any length of time, outdoor temperature, whether we've had house guests, etc.

How do people determine what it's costing them to charge their EV when charging it exclusively at home?

Sorry if there are other threads on this, I looked but not finding anything on point. Thanks.

I charge mine overnight at a night rate. Looking back it is about 1 euro an hour.

 

[JackS]

I am having solar, battery packs and generators being installed as we speak. Can't wait to be off the grid

I am under Duke energy in North Carolina and I have solar panels on my roof. It would be kind of hard to tell how much I spend on charging because I would have to amortize the cost of the panels. Also, unlike some of you because it’s net metering I really don’t care when I actually Charge. It’s the same price coming out as I get paid when I put it back in. And if I’ve put kWs back in during the heat of the dayI don’t feel bad about charging at night.
The other issue is often time I put a lot of miles on my car when I travel, and I have to use chargers on the road this really bumps up my average price per kilowatt hour.

 

[Jerrytball]

Wow. Thanks for that. I always wondered how much it cost. For the month of May, it calculated to $29. If I had used gas, it would have been at least $100!!!

The rate where I live is less than five cents a kilowatt hour when charging, when I had my Nissan rogue I was paying about 160 a month in gas. It’s costing me about $20 a month to charge my car. Light bill has not changed a lot..

 

[Teslaeata]

Stats @ 90,350 miles:

(for non UK, local rates can be substituted for like for like comparison)

Total kWh used to charge 31,454
Total cost £8,580
Av p/kWh 27p
Av p/mile 9.5p
Av miles/kWh 2.87

kWh split home/DCFC 75%/25%
£ split home/DCFC 44%/56%

HVB SoH 88.5%

If ICE car running 45mpg at today’s petrol cost would have cost c£12,970 in fuel so ‘Stangy achieved a saving of around £4,389 in petrol.

Plus of course c£750+ saving in road tax and the saving on the opportunity cost of owning an ICE would have in terms of Corporation Tax, then there’s the saving in company car tax.

Booked in for Contact recall, 3rd service & transmission oil change & analysis.

Still going well, no problems, amazing car-proper work horse.

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