Cost to Charge a Tesla Model Y in Montana

$13.61 for a full charge at 15.14¢/kWh — $4.16 per 100 miles, about $500 a year.

Tesla Model Y in Montana

$13.61 for a full charge

Per 100 miles: $4.16
Per mile: $0.04
Per year: $500
vs petrol / yr: $1,134

Electricity per year
Petrol per year

The full picture

Charging cost breakdown for a Tesla Model Y
Item	Energy	Cost
This charge	89.9 kWh	$13.61
Full charge (0–100%)	89.9 kWh	$13.61
Per 100 miles	27.5 kWh	$4.16
Per year (12,000 mi)	3300.0 kWh	$500
Same year on petrol (30 mpg)	—	$1,634
Difference	—	$1,134

What charging actually costs here

Filling a Tesla Model Y from empty in Montana costs $13.61. The car draws 89.9 kWh from the wall for a full 327-mile charge, and Montana residential electricity averages 15.14¢ per kWh. That works out at $4.16 per 100 miles, or $0.04 a mile.

Montana is cheaper than average: 15.14¢ against a national mean of 19.42¢, which ranks it 16 of 51 for electricity price. The same car costs $11.79 to fill in Nevada and $47.41 in Hawaii — a 4.0× spread across the country for identical driving.

Against a petrol car doing 30 mpg at $4.09 a gallon, electricity here is 3.3× cheaper per mile: $4.16 versus $13.62 per 100 miles. Over 12,000 miles a year that is $1,134 saved.

Similar EVs in Montana

Charging cost of comparable EVs in Montana
Vehicle	Per 100 mi	Full charge	Per year
Tesla Model S	27.1 kWh	$16.82	$492
Hyundai Ioniq 6	28 kWh	$13.40	$509
Subaru Solterra	28 kWh	$12.21	$509
Toyota bZ	28 kWh	$12.21	$509
BMW iX	28.6 kWh	$18.79	$520
Tesla Model 3	26.4 kWh	$13.83	$480

The same car in nearby-priced states

Charging a Tesla Model Y in states with similar electricity prices
State	¢/kWh	Full charge	Per year
Washington	14.91	$13.41	$492
New Mexico	15.06	$13.54	$497
Florida	15.10	$13.58	$498
Arizona	15.18	$13.65	$501
Wyoming	15.24	$13.70	$503
South Dakota	15.36	$13.81	$507

Frequently asked questions

How much does it cost to charge a Tesla Model Y in Montana?

$13.61 for a full charge from empty. The car needs 89.9 kWh at the wall and Montana residential electricity averages 15.14¢ per kWh.

How much does a Tesla Model Y cost per mile in Montana?

About $0.04 a mile, or $4.16 per 100 miles. Over 12,000 miles a year that is roughly $500 of electricity.

Is charging a Tesla Model Y cheaper than petrol in Montana?

Yes — 3.3 times cheaper per mile. Electricity costs $4.16 per 100 miles here against $13.62 for a 30 mpg petrol car at $4.09 a gallon, a saving of about $1,134 a year.

How long does a full charge last?

The EPA rates the Tesla Model Y at 327 miles combined. Cold weather, motorway speeds and a loaded car all reduce that; the EPA number is a standardised test, not a guarantee.

Does this include charging losses?

Yes. The EPA's 27.5 kWh/100 mi figure is measured at the wall socket, so the energy lost in the charger and cabling is already in the number. No extra efficiency factor is applied.

Vehicle data: EPA fueleconomy.gov, model years 2025-2027. Electricity: EIA Electric Power Monthly Table 5.6.A, residential, June 2026. Petrol: EIA weekly retail gasoline price, 24 August 2026.

Estimates for informational purposes only. Real charging cost depends on your tariff, time of use, charger efficiency, temperature, driving style and state of charge. EPA figures are a standardised test result, not a promise about your car.