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Charging an Electric Vehicle In Public Can Cost Triple What Fueling Up a “Gas-Guzzler” Does

Public EV charging can be ridiculously expensive. Here is what we paid to add 34 miles to a new 2022 model year EV at an EVgo charger.

Charging an electric vehicle in public can range in price from free to very expensive. When we recently charged a new 2022 Chevrolet Bolt at an EVgo DC fast charger (DCFC) in Bedford, NH, we discover the pricey end of the spectrum can be more than it would cost to fuel a "gas-guzzling" V8-powered muscle car.

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Image of Chevy Bolt charging at EVgo DCFC by John Goreham$10.15 To Add 34 Miles of EV Range
We charged up a Chevy Bolt using the EVgo DC fast charger, and the bill was $10.15. That amount of money added 34 miles of range to the Bolt. So, the cost per mile of energy was 30 cents per mile. Let’s compare that to a 2021 Dodge performance car we tested the prior week.

Image of Dodge Charger by John Goreham

The Dodge had 797 hp, and it returned a combined fuel mileage of 24 MPG in our use on the same route we tested the Bolt. We paid $2.90 per gallon for the gasoline it uses. Doing some “goes in’tahs,” the cost per mile for energy in the muscle car turns out to be 12 cents. Thus, the cost per mile to energize the Bolt was roughly triple what the V8 gas-powered car cost us.

Image of Chevy Bolt charging at EVgo DCFC by John GorehamCharging Etiquette
When charging in public one is supposed to quit charging when one’s EV reaches 80% state of charge. The reasons for this are two-fold. First, the rate at which charge can be added to an EV battery is more rapid below 80% and much more time-consuming as the battery reaches full. Second, EV chargers are in very short supply. We need to ration them.

On my route from the metro Boston area to the lakes region of New Hampshire, there are exactly zero public DC fast chargers. In order to charge at a DCFC, I took a slightly longer by time route to swing by one of only two DCFC charging spots in that area. Google “Henniker NH DC Fast Chargers” if you want to see what I mean about no chargers. I needed to top-off in order to complete the 200+-mile route I was making. So, I broke charger etiquette, and I charged to full.

I also charged at the DCFC because I wanted to test my EVgo membership RFID card and account and see how long the DCFC took to add back miles. Both were successful tests.

Charging For Free
Coincidental to my test, GM was running a free-to-charge promotion day during the week I had the Bolt. I think free anything is great, but I always wonder, what’s the hidden agenda? If charging up an EV is very affordable anyway, why does there need to be a promotion to make it “free?” If Dodge offered free gas to muscle car owners, I suppose folks would jump at the chance for a free fillup. But why make EV charging free?

Chevy Bolt charging poll image by John Goreham

The answer is to get EV owners to the chargers and have them try out the experience. You see, when we poll owners of EVs, most report that they only charge at home, and almost none report using DC fast chargers.
When I plugged into the EVgo DC fast charger, I hadn’t thought about the cost. After all, we constantly hear how affordable EVs are to power up. I have done the math at my own home, and I know that the cost is typically about five to seven cents per mile of range I add back on my home charger using my relatively pricey Boston-area electricity. $10.15 for just 34 miles was a “shock.” Get it, shock. Bet you never heard that in an EV story before.

Related Story: New Hampshire Innkeepers Demonstrate EV-Driving Guest Best Practices

Feel free to tell us in the comments below what you typically pay to charge in public at a DC fast charger and how that cost compares to your cost at home.

John Goreham is a long-time New England Motor Press Association member and recovering engineer. John's interest in EVs goes back to 1990 when he designed the thermal control system for an EV battery as part of an academic team. After earning his mechanical engineering degree, John completed a marketing program at Northeastern University and worked with automotive component manufacturers, in the semiconductor industry, and in biotech. In addition to Torque News, John's work has appeared in print in dozens of American newspapers and he provides reviews to many vehicle shopping sites. You can follow John on TikTok @ToknCars, on Twitter, and view his credentials at Linkedin

Comments

Roarke Ramsey (not verified)    July 13, 2021 - 9:14PM

To add some context... Evgo charges for charging time not amount charge gained, so this 2.5 times the cost is charging a slow charging car at high state of charge when it charges the slowest. For example if it were say an Ioniq 5 charging from 10-80% it would cost about $6 and add around 200 miles.

Jeremiah (not verified)    July 13, 2021 - 9:56PM

Wow, what an absolute ripoff... EVGo should be ashamed of charging those kind of prices. I'd heard of people paying $0.40ish per KWh but never over a dollar! I pay $0.09 per KWh at home and between $0.24 and $0.31 per KWh on the Tesla network. Ends up costing me half of what I would pay in gas for my old Mazda that got 30mpg even at the more expensive superchargers.

Kurt Hammons (not verified)    July 14, 2021 - 7:37AM

In reply to by Jeremiah (not verified)

The issue wasn't really EVGo so much as the writer searching for a story. The charger costs $.35 per minute and they were charging the car over 80% when the charge rate slows way down, not something a normal EV driver would do.

Greg Abell (not verified)    July 13, 2021 - 10:07PM

Well there you have it. The duration of your charge was half an hour and the juice cost 10 bucks. So at maximum utilization that charger would only bring in 15 or 18 bucks an hour. When you factor the capital cost, cost of electricity, maintenance, insurance, etc the charging business is a loser from the get-go. Compare that to a gas pump that can squirt out a hundred bucks worth in 5 minutes

RW (not verified)    July 13, 2021 - 10:27PM

This is kind of misleading. The bolt is by far the worst fast charging electric car on the market. Evey other car would have added at minimum 125-150 miles in 30 minutes.

Scott Lawson (not verified)    July 13, 2021 - 11:31PM

I charge my older BMW i3 at an evgo L3 station for $0.27 a minute. If I am at 10% I can get to 90% in about 40 minutes or $10.80. This is 70 miles of range or about half of what you paid. This is still expensive, but as you note, using public chargers is rare, for road trips, etc. Charging at home is about 25% the price of gas.

Scott Lawson (not verified)    July 15, 2021 - 10:33AM

In reply to by Jim (not verified)

Actually, Jim, EVs save you time because 95% of the time a typical driver charges at home while sleeping. If you fill up your ICE car 4 times a month and take just 5 minutes to divert your driving path to go the the station, fill up, pay, and get back on your path, that is 20 minutes per month you waste. Add that to the time you get an oil change, and other ICE-only maintenance (smog certificate, belts, water pumps, coolant, etc.) and you will find that ICE cars are obviously for those who don't have any time constraints in their schedule.

Tim (not verified)    July 14, 2021 - 12:07AM

$10.15 for 34 miles? That’s absurd and hard to imagine. I use to live in a condo so I had to charge my Tesla exclusively at public chargers and would average roughly $7 for 200 miles in range.

Mike B (not verified)    July 14, 2021 - 12:14AM

Why did it take half an hour to provide 9 kwh? How full was the battery when you started charging? Does EVGo charge by the minute or by the kwh? Or a combination of both?

John Goreham    July 14, 2021 - 11:13AM

In reply to by Mike B (not verified)

Mike B, as the story discusses, I had to start charging above 80% in order to make the journey. See my other comments for more details on why. EVgo has multiple charge rate options. The one I opted for is per minute. A bad choice for many EV owners who charge publically frequently.

Isaac (not verified)    July 14, 2021 - 12:33AM

This isn't a widespread issue. I just did an 1400 mile trip in my EV and spent no more than $50 DC charging. Anyone who owns an EV and takes it long trips knows that A MAJORITY of DCFCs have switched from per minute charging to per kW charging. This means regardless of whether your car chargers are 50kW or 150kW, you'll spend the same 25-41¢/kW on average. There are still a couple of states lagging behind with EVgo (especially), but at this point Electrify America has completed almost all conversions and ChargePoint DCFCs already vast majority charge on a per kW basis, alleviating this issue. Also, the issue of time based charging is only an issue if you: have a faulty charger not delivering energy, are charging over 80% at a DCFC, or are driving a Bolt which limits DCFC at 50kW max.

Dustin Ingraham (not verified)    July 14, 2021 - 1:23AM

In reply to by Isaac (not verified)

So when are they going to charge electric cars road taxes to fix the potholes that these heavier vehicles are causing? If you were to remove the taxes on gasoline or apply road taxes to electric cars, will that 25% of the cost be more like 66% of the cost of gas? We will all find out soon 3nough. As manufacturers get closer to only selling electric cars, the government will be knocking on our doors for more taxes. They aren't going to let this tax money just disappear. The mob doesn't just forget to charge you. They are waiting to sucker punch every one of us. Nothing in life is free.

Jason Parker (not verified)    July 14, 2021 - 11:03AM

In reply to by Isaac (not verified)

I work in the energy industry and I'm betting that charger is on a spot market rate that adjusts to the wholesale price of electricity, which changes hourly and is much higher at peak demand times of the day and year. Curious to know if the rate would have been less at night or during the spring or fall season.

Peter Ng (not verified)    July 14, 2021 - 12:56AM

While it's true that charging at public chargers isn't the cheapest. I believe that public chargers need to standardize on KW with an idling fee or a time limit.
What your article doesn't seem to mention is that the charger you used charged you per minute and not per KW. You did mention that you charged it up to 100% and it's not about etiquette, it's about eefficiency. You plugged in when your car would recharge at the slowest possible rate.
These two factors are why you got 34 miles for $10.15 instead of 100 miles for the same price.

LIZ Morris (not verified)    July 14, 2021 - 1:14AM

My 2 cents…I see a lot of EV charging costs criticisms.
If we’re being honest, EV folks aren’t weighing weather to buy a Dodge Challenger or a Chevy Bolt, that arse-backwards non-logic. EVs don’t use fossil fuel, that’s the selling point, period. Become a member at EVgo or ChargePoint to gain access to reduced costs and avoid the higher fee stations-which are as often as not, charging more because that City board decided to bilk consumers. It’s not gas vs recharging, it’s about our 1 small blue planet and choosing to keep her healthy.

Norman (not verified)    July 14, 2021 - 1:47AM

How did you added 34 miles on a DC fast charger after 29 mins & 23 seconds? Not sure how fast that charger is or you might have .....

Rob Gibson (not verified)    July 14, 2021 - 2:04AM

Nice clickbait headline. But a better one would be:

Idiot Who Doesn't Know How To Look At Prices Complains When He Gets Screwed With High Prices

Gabe Petlin (not verified)    July 14, 2021 - 3:28AM

Public chargers that bill by the minute instead of the kilowatt hour or a very bad deal for consumers. This is because chargers will charge at different rates depending on demand and different cars charge at different rates. This makes it almost impossible to predict what the cost Will be per kilowatt hour. We would not stand for this at a gas station. Public chargers should bill by the kilowatt hour which is more transparent and easier for the consumer to know what they’re paying per kilowatt hour of electricity.

Daniel Curry (not verified)    July 14, 2021 - 5:30AM

Your mistake was only adding a few miles. Most public chargers charge a flat per-use fee on top of a per-kWh cost (usually about double the rate you'd get at home during off-peak hours). 34 miles is roughly 8.5 kWh (avg) so, doing some ga'zintas, it looks like you were charged about $8 flat fee and about $0.25/kWh. Those are both high end numbers, but your per mile cost would have averages lower if you charges from empty to full rather than "topping off". To be fair, I think the public chargers need to drop the per use fee. You don't see has stations charging you a flat fee just to start pumping.

John Goreham    July 14, 2021 - 10:57AM

In reply to by Daniel Curry (not verified)

Thanks, Daniel Curry. There was no per-use fee for this EVgo stop. I agree entirely with your sentiment. There was also no mistake in adding a few miles. There was no choice. I topped off at the only DCFC on my route from Metro Boston to the lakes region of NH to which I was traveling. It came at the first part of the journey and I needed all the range I could squeeze in in order to use the vehicle the same way I use ICE cars every week.

Dean Bush (not verified)    July 14, 2021 - 5:31AM

I just charged up my Tesla Model S with 205 miles for $10. All the other companies like Blink, ChargePoint, EVgo are just ripping drivers off! It's shameful of them. BUY TESLA!!

Tdog (not verified)    July 14, 2021 - 6:24AM

This is why I drive a gas car. I don't want to waste time sitting at a charger, nor do I want to pay the fees. Here the non Tesla chargers charge .50 cent per kWh which is the same price as premium fuel, plus I need to waste 30 min at a charger, no thanks. Time is money and I'd be losing it sitting around, I'll stick with gas and get 450 miles or range in 3 min.

Matt M (not verified)    July 14, 2021 - 6:41AM

The problem was you weren't using the vehicle for what it's intends for, making the comparison between the Bolt and Dodge inaccurate. Fast charging at the top of the pack takes significantly longer (80%-100%) vs charging at the lower end. You would have added significantly more "miles" at the low end of the pack for the same cost. Miles is not a smart way to measure energy- it's like going to a gas station where you cant pump your own gas and telling the attendant to "give you 100mi of gas".

John Goreham    July 14, 2021 - 10:58AM

In reply to by Matt M (not verified)

Matt M, you don't seriously think that this story was intended to compare a muscle car to a BEV, do you? The Dodge was just a handy comparison to highlight how expensive EV charging can be if you do a few things wrong. As to adding miles, I've been testing EVs for over a decade. All that matters is range miles. Anything else is just a mental exercise.

Kurt Hammons (not verified)    July 14, 2021 - 7:15AM

This article is flat out dishonest. The Bolt charges at over 50kW when below 50% like any sane person would be to use a charger where you pay by the minute ($.35/min) for the charger in question, but based on the bill the average charge rate was under 20kW which means the car was likely over 80% for a good part of the time. No sane person does this and it's the core of the article. It was nothing up a set up to make a dishonest argument.

John Goreham    July 14, 2021 - 11:11AM

In reply to by Kurt Hammons (not verified)

Thanks Kurt, I've been driving from the Boston area to the lakes region of NH regularly all my life (since I turned 16). This was the first BEV I trusted to get me there. To use the vehicle, I had to add range along the trip since the cabin is not yet set up for Level 2 charging. It's service panel is from 1970 and has to be replaced to add any new lines. The DCFC in Bedford was one of only two options. I opted for this one since the other had zero Google reviews and I have arrived at chargers without reviews in the past had found that they were inoperable or on private property (in gated company parking lots). There is no setup here. There is an entire paragraph that discussed the 80% state of charge issue in the story. I had to charge while above 80% to enable the use of the Bolt. I needed all the range I could get to use the vehicle. As the story says, Google "EV chargers in Henniker" to see what an EV charging desert looks like.