How Much Does It Cost to Charge an Electric Car?
prospective electric cable car owners got tantalum sleep together, “ Will my electric placard go through the roof when I charge at home ? ” After all, you ’ re plugging a battery literally the size of a Volkswagen into your house, so it must make the electric meter spin like when Clark Griswold plugged in a million strands of Christmas lights, right ?
well, an EV can become one of the power-hungriest things attached to your house, but don ’ triiodothyronine forget that your gasoline budget will probably go down at least a much, and possibly well more. How much extra an electric vehicle will increase your electric bill depends on many factors, but fear not : It ’ second easily determined and probably won ’ thyroxine leave in the double or tripling of the average electric bill .
Related: 5 Things That Could Slow Your EV’s Home Charging Speeds
How Much Does It Cost to Charge an EV at Home?
To get a grating estimate of how much an electric car will increase your monthly electric beak, you need to know the following :
- Number of miles driven per month
- Efficiency of the EV measured in kilowatt-hour per mile, found on gov
- Local cost per kWh, measured in cents
even then, cost will vary based on other factors, but we can get you in the approximate range. Electricity pulmonary tuberculosis is measured in kWh, as opposed to gallons of gasoline in a traditional cable car. A kWh is a measure you should be familiar with if you ’ ve ever looked at your home electric bill. To get an accurate cost per kWh, take the overall cost of electricity on your last beak and separate by kWh used, which will take into consideration all fees and charges that come with delivering electricity to your home. The end act should look something like $ 0.1375, or 13.75 cents per kWh, which is the final reported national residential average from December 2021, according to the Energy Information Administration. To account for month-to-month changes in the electric rate or other placard variations like metering or fees, you might want to do the same calculation for a few different monthly electric bills to get a more accurate average .
With the know monetary value of energy, we can figure out how much it costs to charge a popular EV like the Tesla Model Y Long Range All-Wheel Drive. This model is rated by the EPA to use 28 kWh to travel 100 miles, which works out to 0.28 kWh per mile if you move the decimal fraction two places. From here, you can multiply the consumption of 0.28 kWh per nautical mile by how many miles you drive per calendar month to see sum kWh consumption. In this appraisal, the EPA includes vehicle consumption ampere well as charging losses ; there are energy losses when taking power from the grid and transferring it to the battery, so you ’ re paying more than merely what the car is using. Driving 1,000 miles per calendar month ( a nice rung count we ’ rhenium using for easier visual image ), you ’ d take 0.28 kWh ten 1,000 miles to get an overall consumption of 280 kWh, then multiply that by the rate of $ 0.1375 per kWh to get the sum cost of $ 38.50 for a Model Y Long Range AWD to drive 1,000 miles per month. Voila !
Factors That Could Increase Your Monthly Electric Bill
An extra $ 38.50 per month to charge an electric car at home would be a 33 % increase on the average electric circular, according to stats from the Energy Information Administration. Less than $ 40 to drive 1,000 miles is impressive, but that could increase or decrease depending on how a lot you drive, vitamin a well as if you live in an area with costlier or more low-cost electricity rates. In California, the average kWh rate was 23.76 cents in November 2021, which would raise the monthly cost to $ 66.53 per calendar month with all early factors remaining the same .
A less efficient EV could besides cost more to drive. An EV rated with lower efficiency like the Audi E-Tron Quattro at 0.43 kWh per mile ( versus 0.28 kWh of the Model Y ) would increase the monetary value from $ 38.50 to $ 59.13 based on the national average because it uses more energy to travel the lapp distance .
The above examples are best-case scenarios, meeting EPA-rated efficiency. In reality, EV efficiency changes based on the conditions in which you drive ( vehicle load, elevation changes, temperatures ) just like in a regular gas-powered cable car .
How Much It Cost to Recharge Our Tesla Model Y
We purchased a Model Y Long Range in November, and our entire charge costs of $ 183.90 to travel 2,011 miles paints a less rose-colored, though more realistic, picture of how much it costs to recharge an EV, including DC flying charging for long-distance drives. In our foremost four months of ownership, we spent an average of $ 45.98 per calendar month, which is close to the figure estimated above — but it was based on 503 miles per calendar month, only half the miles in the estimate. In reality, our cost was more than double the calculate. Why the remainder ? Our 505 miles included some more expensive DC fast charge ( Tesla Supercharging ), plus energy losses from base charge. We saved a dollar or two from the periodic Level 2 free charger at retail stores, which typically paid merely for the short circuit tripper .
About 1,300 miles of our 2,011 miles spent drive has been fueled by base appoint at a cost of $ 79.21, and the bulk of our Supercharging costs ( $ 104.69 ) came from approximately 700 miles on a individual road trip that took four stops at Superchargers. Our long-run Model Y has besides been by and large driven in cold weather with frequent cabin precondition ( plugged and unplugged ) ; that shows in its efficiency, averaging 31.2 kWh per 100 miles ( or 0.312 kWh per mile ), which is more energy to travel the same distance compared with the EPA rate of 28 kWh per 100 miles ( 0.28 kWh per nautical mile ) .
Looking at our home-charging efficiency besides tells us where some of the costs have gone. Charging efficiency is the measure of the total energy used in the charge process versus energy added to the battery — ideally, 100 % with no losses to heat or battery condition — but has ranged from 69 % to 96 % for longer charges according to the TeslaFi data lumberman we use to record all charge sessions.
What that means is during home appoint we ’ ve used 672 kWh of energy to fill the cable car ’ s battery with 547 kWh, or an supernumerary 127 kWh just to facilitate charge, which comes out to $ 17.46 at the modal kWh cost. DC fast charging has proven a more effective charging method acting with the five entire sessions ranging from 97 % -100 % efficiency, which isn ’ t storm because converting home AC to DC onboard the vehicle to charge the barrage constantly represents department of energy loss. But fast charge comes with its own cautions about battery health and cost .
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How Much It Costs to DC Fast-Charge an EV
DC fast charging can eat away at likely fuel savings, costing more than double or triple that of home consign. note that “ fast charging ” is rapid relative to home charge but hush doesn ’ thymine come anywhere near to the expedience of filling up an internal-combustion fomite at a flatulence station. Our position is that Level 2 home charge is best suited for EV possession and fast charge should be reserved for road trips or emergencies .
Tesla Supercharger charge rates vary by placement, and in our experience by and large throughout Illinois, we ’ ve been billed 30-37 cents per kWh using Tesla ’ s 150- or 250- kilowatt Superchargers ; a kilowatt is the measure of world power and charging travel rapidly electric potential. Our Model Y ’ s most expensive Supercharger fill-up monetary value $ 19.72 ( including taxes ) to add 69 % to its battery capacity ( from 26 % to 95 % ) and 235 miles of rate in 49 minutes ; see what we mean about fast charging not being a fast as filling up ? Along with the charger itself, charging accelerate depends on ambient weather conditions, vehicle conditions and the battery ’ mho express of charge, typically slowing as the state of matter of consign reaches 80 % ; that meant holding out for 95 % because we were on the road and needed maximum rate .
In Illinois, Electrify America bills 43 cents per kWh for guests and 31 cents per kWh for nonrecreational members ; EVGo bills between 22 and 29 cents depending on membership condition ; those billing rates can change based on localization. not all DC fast chargers are created peer, as charger rush can vary from 24 kW to 350 kW, and not all cars are compatible with the fastest speeds or come close to their marketed capability in practice ( but that ’ s another story ). The comparison is to 14 cents per kWh at home for a maximum 19.2 kilowatt charge accelerate. Often, though, automakers offer limit complimentary DC fast charge, by years or with a kWh cap .
Tesla Superchargers and other fast-charging networks like Electrify America and EVGo placard by kWh whenever possible, but you may besides be billed by the minute depending on state regulations. According to Electrify America, “ We believe pricing on a per-kWh basis offers a fair and coherent charging experience to EV drivers. We are working with regulators to follow the respective processes that are required for us to provide EV charging on a per-kWh basis. ”
entirely using DC fast chargers when it ’ s not complimentary — as with our Model Y — would shrink cost savings versus charging at home. frequent DC fast charge is besides not recommended as it can degrade battery health more quickly. entirely Supercharging would cost $ 84 to drive a Model Y 1,000 miles at $ 0.30 per kWh, versus $ 39.54 at home, using EPA compound efficiency figures .
Electricity Vs. Gasoline Costs
When charging at home, EVs are more low-cost to refuel versus comparable gasoline cars, but don ’ deoxythymidine monophosphate jumble that with electric cars being immediately cheaper to own because, at the consequence, the extra expense related to buying an EV and installing home-charging equipment doesn ’ t make a immediate payoff a indisputable bet. relative to your existing electric bill, charging an EV could mean a sharp increase, but in most cases, the cost is well lower than fueling a gasoline-powered cable car. The Department of Energy says on average, it costs about one-half as a lot to drive an EV versus a comparable accelerator car .
Editor’s note: This narrative was updated March 11, 2022, to clarify that the EPA ’ s consumption estimates include charging losses.
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