Hyundai Ioniq 6 vs Toyota Camry at 14¢/kWh and $3.40/Gallon: Fuel Cost Per Mile and the 5-Year Break-Even Without the Federal Credit
Will an EV actually save you money, or is it just hype? The honest answer is that it depends on three numbers most comparison articles never ask for: what you pay per kilowatt-hour, what you pay per gallon, and how much of your charging happens at home.
This post builds one worked example: a Hyundai Ioniq 6 vs a Toyota Camry for someone driving 12,000 miles per year. I'll show where the EV wins, where it loses, and how much a state rebate or a gas price spike would have to move to flip the result.
One important disclaimer up front. Every price, efficiency figure, and rate below is an assumption I chose for the example, not a quote and not a measured average. Swap in your own numbers. That's the whole point.
What the news cycle is (and isn't) telling you about your costs
This week's energy headlines are interesting but mostly don't touch your monthly bills:
- Kempower and DP World. Electrek reported that Kempower is bringing high-speed charging to DP World's Canadian terminal operations, with the first two sites online. That's heavy-duty and fleet infrastructure. It's a sign of where charging investment is going, but it doesn't change what you pay to charge a sedan in your driveway.
- Geothermal. CleanTechnica's geothermal piece says the Energy Department is banking on geothermal for rapid scale-up despite last year's sharp U-turn in federal energy policy. Long-term, more supply could matter for electricity prices. It won't change your 2026 utility bill.
- Floating wind. CleanTechnica's OceanX article covers a downwind floating wind design. Same story: interesting for the grid decades out, irrelevant to this year's cost per mile.
- Renault 8 Gordini. Electrek's write-up covers a 270 hp electric retro concept. Fun, but it's a concept, not something you can put in a comparison.
None of these articles gives a per-kWh rate, a gas price, or a purchase price. So I won't pretend they do. What they do suggest is that energy supply and charging infrastructure are still being built out, while the number that hits your wallet is your local utility rate and your local pump price. Those you have to look up yourself.
The example inputs (replace these with yours)
| Input | Ioniq 6 (EV) | Camry (gas) |
|---|---|---|
| Purchase price (assumed) | $38,000 | $30,000 |
| Real-world efficiency (assumed) | 3.3 miles per kWh at the wall | 36 mpg |
| Annual miles | 12,000 | 12,000 |
| Maintenance (assumed) | $300/yr | $600/yr |
| Insurance (assumed) | $1,500/yr | $1,100/yr |
| Value after 5 years (assumed) | 40% ($15,200) | 50% ($15,000) |
| Federal credit | $0 | n/a |
A note on the efficiency figure. I'm using a "wall" number, meaning it includes charging losses, not the sticker range figure. Manufacturer efficiency ratings run rosier than what you see over a winter in Ohio or a summer in Arizona. If you live somewhere extreme, use a worse number.
On the federal credit: I'm assuming zero, since the $7,500 credit is repealed for new purchases (see our Ioniq 6 vs Camry post on the repeal). Any state or utility incentive gets added separately below.
Step 1: Fuel cost per mile
Here's the arithmetic, assuming $3.40 per gallon and 14¢ per kWh at home.
Camry: $3.40 ÷ 36 mpg = $0.094 per mile
Ioniq 6 at home: $0.14 ÷ 3.3 = $0.042 per mile
Ioniq 6 on DC fast charging at 45¢/kWh (assumed): $0.45 ÷ 3.3 = $0.136 per mile
Read that last line again. On DC fast charging, the EV costs about 44% more per mile than the gas car. That's the single most overlooked fact in EV-vs-gas debates. Charging costs can vary several-fold depending on where you plug in, and a driver who relies on fast chargers isn't getting the savings the brochures imply.
Now scale it to 12,000 miles a year and five years:
| Charging scenario | Per mile | Per year | 5 years |
|---|---|---|---|
| Camry at $3.40/gal | $0.094 | $1,133 | $5,667 |
| Ioniq 6, 100% home at 14¢ | $0.042 | $509 | $2,545 |
| Ioniq 6, 80% home / 20% DC fast at 45¢ | $0.061 | $734 | $3,670 |
| Ioniq 6, 100% DC fast at 45¢ | $0.136 | $1,636 | $8,182 |
Home-only charging saves about $3,100 over five years against the Camry's fuel. An 80/20 mix saves about $2,000. All-fast-charging costs you about $2,500 more.
This is the kind of analysis Celvari runs for you, so you don't have to build the spreadsheet yourself.
For deeper comparisons of home vs fast charging on similar cars, see our Ioniq 6 vs Camry Florida breakdown and the Michigan version at 17.5¢/kWh.
Step 2: The full 5-year cost (this is where fuel savings run into the price gap)
Fuel savings are real, but they're only one line. Here's the whole ledger using the 80/20 charging mix.
| 5-year line item | Ioniq 6 | Camry |
|---|---|---|
| Depreciation (price minus value at year 5) | $22,800 | $15,000 |
| Fuel / electricity | $3,670 | $5,667 |
| Maintenance | $1,500 | $3,000 |
| Insurance | $7,500 | $5,500 |
| Total | $35,470 | $29,167 |
In this example, the Camry wins by about $6,300.
The fuel and maintenance savings on the EV total roughly $3,500. But an $8,000 sticker gap, a bigger depreciation hit, and higher insurance more than eat them. If you've read an "EVs are always cheaper" claim, this is the math it skips. If you've read "EVs never pay off," this is the math that skips the fuel line. Neither is the full picture.
Step 3: What has to change for the EV to win?
Here I'm going to be blunt: at a 14¢ rate and $3.40 gas, with an $8,000 price gap and no federal credit, the EV needs help. There are four levers. Let me test each one.
Lever 1: Charge almost entirely at home. Move to 100% home charging and the EV's five-year total drops to $34,345. The Camry still wins, now by about $5,200.
Lever 2: Add a state or utility rebate. Take the home-only case and subtract a $5,000 state rebate (an assumed example, and eligibility varies a lot by state, income cap, and vehicle price cap). The EV lands at $29,345 against the Camry's $29,167. That's effectively a tie, with the Camry ahead by about $180.
Lever 3: Gas gets more expensive. At $4.50 per gallon, the Camry's per-mile fuel cost becomes $4.50 ÷ 36 = $0.125, or $1,500 a year and $7,500 over five years. Its total climbs to $31,000.
- Ioniq 6, 80/20 mix, no rebate: $35,470 vs $31,000 → Camry ahead by about $4,470
- Ioniq 6, home-only, no rebate: $34,345 vs $31,000 → Camry ahead by about $3,345
- Ioniq 6, home-only, with $5,000 rebate: $29,345 vs $31,000 → EV ahead by about $1,655
Lever 4: A smaller price gap. Every $1,000 you shave off the EV's negotiated price moves the total by roughly $1,000 (less a bit if resale tracks price). If your dealer offers a real discount, that's dollar-for-dollar.
| Scenario (Ioniq 6 vs Camry) | Gas price | Charging | Rebate | Winner | Margin |
|---|---|---|---|---|---|
| Base | $3.40 | 80/20 | $0 | Camry | ~$6,300 |
| Home-only | $3.40 | 100% home | $0 | Camry | ~$5,200 |
| Home-only + rebate | $3.40 | 100% home | $5,000 | Camry (barely) | ~$180 |
| Gas spike + rebate | $4.50 | 100% home | $5,000 | Ioniq 6 | ~$1,655 |
So the honest answer to "Is the EV cheaper?" is: not automatically, and not in every state. It becomes cheaper when you stack home charging, a meaningful incentive, and a gas price that isn't at the low end. Take one of those away and the math gets thin.
You can model this for your specific situation at Celvari, using your own electricity rate, gas price, and mileage.
Step 4: Don't ignore battery degradation
Range loss matters because it changes how often you charge (and where). If your battery holds less over time and you have to lean on fast chargers more often, your blended cost per mile creeps toward the expensive end of the table above.
I haven't included a degradation penalty in the totals, and I don't want to hand-wave one. Geotab and Recurrent both publish real-world fleet data on capacity loss, and that's the right place to get a current figure rather than trusting a manufacturer's claim. Here's how to use it: take whatever annual loss rate you find, apply it across five years, and check whether your daily driving still fits inside the remaining range without more fast-charging stops. If you commute 30 miles a day and charge at home, modest degradation barely touches your costs. If you road-trip or drive 60+ miles a day, it can.
For the ownership-risk side, our posts on battery degradation at 100,000 miles and on warranty coverage vs a Toyota Corolla-class gas car walk through the specifics.
Step 5: If you can't charge at home
Everything above leans on cheap home charging. If you rent an apartment with no plug, your realistic rate is public Level 2 or DC fast, which can be 2x to 3x the residential rate. At that point the fuel line may not favor the EV at all. Our no-home-charging Equinox EV vs RAV4 post models exactly that case. If workplace charging or a dependable curbside charger is available, it changes the picture, so check before you buy.
Where the energy headlines could matter (eventually)
Back to this week's stories. The Kempower and DP World deal is a reminder that charging build-out isn't only about passenger cars. More heavy-duty and fleet investment tends to mean more equipment makers, more standards, and more grid connections, which could help or strain local supply depending on where you live. Geothermal and floating wind are attempts to add generation. If they succeed at scale, they could put downward pressure on power prices over the long run. But "could" and "eventually" aren't inputs for a car you're financing this month.
What you can plan around today:
- Your utility's current residential rate, and whether it has a time-of-use plan that makes overnight charging cheaper.
- Your local gas price and how much it has moved in the last two years. For a look at how forecasts feed into the math, see our Kia EV6 vs Camry fuel cost and EIA forecast post.
- Actual incentives available where you live, with their income caps, price caps, and whether they're point-of-sale or claimed later.
A quick checklist before you sign anything
- Write down your real annual mileage, not a round guess.
- Get your kWh rate from a recent bill, including delivery charges, not just the headline supply rate.
- Estimate what share of your charging will be home vs public.
- Ask the dealer for the out-the-door price for both cars, including any "charging fee" add-ons.
- Get insurance quotes for both vehicles. In my example the EV costs $400 more per year, but yours could be higher or lower.
- Confirm which state and utility incentives you actually qualify for, and when the money arrives.
- Decide how long you'll keep the car. Five years is a common yardstick, but the answer can change at three or ten.
Bottom line
In this worked example, a Hyundai Ioniq 6 doesn't beat a Toyota Camry over five years without help. With no federal credit, a $8,000 price gap, 14¢ electricity, and $3.40 gas, the Camry comes out ahead by roughly $5,000 to $6,000, depending on how much you use fast charging. Add a $5,000 rebate and mostly-home charging and it's a coin flip. Push gas to $4.50 on top of that and the EV pulls ahead by around $1,650.
That doesn't make the EV a bad choice or the Camry a bad one. It means the result is sensitive to inputs that are personal to you: your rate, your pump price, your charging habits, and your state's incentives. Anyone who tells you the answer without asking for those is selling something.
Run your own numbers at Celvari. Enter your zip code, your mileage, and the two cars you're actually considering, and see where your break-even lands before you talk to a dealer.
Sources
- New Kempower charging deal powers up Canadian port operations — Electrek
- Renault 8 Gordini reborn as 270 hp electric rally retromobile — Electrek
- OceanX Made Downwind Floating Wind Worth Another Look — CleanTechnica
- The Geothermal Energy Wild Card Is Getting Wilder — CleanTechnica
- Publish Your Book Through CleanTechnica Press — CleanTechnica