(iSeeCarsWhen you compare the cost of driving a gas-powered car one mile to the price of driving one mile in an electric car, the electric car always comes out on top. Gas car drivers always know gas prices because they are advertised in great numbers at every local gas station. Not many people know how much it costs to use an EV charging station to fill up an EV, largely because the cost of electricity isn’t prominent in people’s minds.
However, it is possible to calculate the costs of charging electric vehicles very quickly. If you don’t want to delve into public charging station rates, or associated discounts and incentives, or study your electric bill, the DOE has said the average cost of charging an electric vehicle is about 60 percent less than equivalent refueling costs. for an internal combustion vehicle. But if you’re an electric car owner or potential owner and want to know a more specific number, here are three ways to calculate the cost of charging and driving electric.
This graph shows the full charge for a Volkswagen ID 4 plus the cost per mile and annual cost to charge it for each state in the US, using average residential electric costs and annual driving range. We’ll show you how we arrived at these numbers below.
|Electric vehicle shipping costAssuming an annual driving distance of 14,263 miles in a 2022 Volkswagen ID.4 Pro RWD|
|Average residential electricity price by state||* Cents per kilowatt hour (June 2022)||The cost of fully charging a 77 kWh battery, 0-100% (in dollars)||Cost per mile (cents)||Annual shipping cost|
|District of Columbia||13.74||10.58 USD||3.85||$549|
|Kentucky||13.13||10.11 US dollars||3.68||$525|
|Massachusetts||25.20||USD 19.40||7.06||1007 dollars|
|Nevada||13.18||10.15 US dollars||3.69||$526|
|New Hampshire||22.72||USD 17.49||6.36||907 dollars|
|New Jersey||17.27||13.30 USD||4.84||$690|
|New Mexico||14.14||10.89 USD||3.96||$565|
|New York||22.38||USD 17.23||6.27||$894|
|South Carolina||14.21||10.94 USD||3.98||$568|
|West Virginia||13.76||10.60 USD||3.85||$549|
|US national average||15.42||$11.87||4.32||$616|
* Energy costs are sourced from the US Energy Information Administration
cost per gallon
In 2013, when mass-market electric vehicles were still relatively new, the Department of Energy created the eGallon system, which attempted to calculate the cost of a “gallon” of electricity. Electricity can’t be measured in gallons, so the Department of Energy came up with an equation that uses the average efficiency of the five best selling electric vehicles to calculate a realistic national average. The formula looks like this: eGallon ($/gal) = FE * EC * EP, and we can use it to calculate the cost of an eGallon for any EV:
Step 1: Find the miles per gallon (MPG) rating for a similar gas-powered vehicle. This is the fuel economy (FE) in the above formula. You can also use the average US rating of 25.4 mpg for 2020 vehicles, the most recent data available.
Step 2: Find the Electricity Consumption (EC) of the electric vehicle. This number, expressed in kilowatt-hours (kWh) per mile, can be found on the EPA’s fuel economy website. As an example, we’ll use the Tesla Model Y, which was the best-selling electric car in the US last year. There are multiple versions, each with different ratings. We will be using the most efficient model, the Tesla Model Y RWD, which uses 26 kWh per 100 miles. We need to express this number in miles, so we’ll divide by 100, or .26 kWh.
Third Step: Find your Electricity Price (EP). For home charging, you can use the monthly number from a recent utility bill or calculate your own annual average. If you agree with the rough estimates, you can use your state’s average cost (which you can find in the table below) or the national residential average, which was 15.42 cents in June 2022 according to the US Energy Information Administration, the most recent month for which data is available.
Step 4: Hack the calculator. Following the above formula with national averages, the cost of an eGallon in Model Y looks like this: 25.4 x .26 x 15.42 = $1.02. This means that using an EV charger to fill up a Model Y is like shooting gas on a conventional car for $1 a gallon.
cost per charge
If you want to exceed gallons, you can calculate the actual shipping cost. You will need to know two things: the cost of electricity and how much you need. Average residential electricity costs vary widely across the country, from 10.49 cents per kilowatt-hour in Washington state to 28.98 cents in California and 44.09 cents in Hawaii. Remember, the national average is 15.42 cents.
The amount of electricity an electric vehicle driver needs depends on the distance traveled and the size of the electric vehicle’s battery. Automakers provide the total capacity of electric vehicle batteries in each EV, and today’s packages range from about 30 kWh to about 100 kWh. The usable battery capacity determines the driving range, and is not always equal to the stated full capacity. But for our purposes, you can estimate the usable battery capacity by reducing the total capacity by about 10 percent. The 70 kWh empty package requires about 63 kWh to fully charge. Some automakers provide the net capacity of the battery, which makes your calculations more accurate.
Now, all you have to do is do some swiping. A 2022 Volkswagen ID.4 Pro RWD, for example, with its 82 kWh (77 kWh) battery, will cost about $11.87 to charge from zero to full (77 kWh x 15.42 cents). = 1187 cents).
Calculating costs at public express charging stations works the same way, but it is difficult to discuss average costs. Charging networks charge different rates, usually somewhere around 30 or 40 cents per kilowatt-hour, with everything from the charging network you use (Tesla’s SuperCharger Electrify America? EVgo?), to the time of day (peak hours versus off-peak hours) potentially affect your cost.
In general, faster charging options, such as public chargers with DC fast charging or a SuperCharger, will cost you more than charging with a 240-volt level 2 system in your home. But fast chargers can provide you from 10 to 80 percent of battery capacity in less than 30 minutes, assuming your EV has a compatible charging system capable of taking full advantage of this technology.
Many new electric cars, such as the Hyundai Ioniq 5 and Tesla Model 3, can benefit from fast charging, while most older electric cars such as the Nissan Leaf cannot. This type of charging speed can mean up to 250 miles or more of range restored in less than an hour, versus 4 miles of range per hour from a standard 110-volt wall socket or 30 miles of range from a Level 2, 240-volt system. the home. (For more information about shipping time, please refer to How long does it take to charge an electric car? Instructs.)
Cost per mile
Finally, it is useful to know the EV cost per kilowatt-hour, as this allows you to calculate the cost per mile. Start with the cost of refilling the battery ($11.87 for our ID 4 as an example above) and then divide it by the vehicle’s 275-mile range: 4.32 cents per mile. The average American drives 14,263 miles each year, according to the latest data from the Department of Transportation. This means that the average cost of paying ID.4 for a year is just over $600, as shown in the table above.
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