Cost to Charge a Volvo EX90 in Hawaii

$53.55 for a full charge at 52.72¢/kWh — $19.40 per 100 miles, about $2,328 a year.

Volvo EX90 in Hawaii

$53.55 for a full charge

Per 100 miles: $19.40
Per mile: $0.19
Per year: $2,328
vs petrol / yr: -$694

Electricity per year
Petrol per year

The full picture

Charging cost breakdown for a Volvo EX90
Item	Energy	Cost
This charge	101.6 kWh	$53.55
Full charge (0–100%)	101.6 kWh	$53.55
Per 100 miles	36.8 kWh	$19.40
Per year (12,000 mi)	4416.0 kWh	$2,328
Same year on petrol (30 mpg)	—	$1,634
Difference	—	-$694

What charging actually costs here

Filling a Volvo EX90 from empty in Hawaii costs $53.55. The car draws 101.6 kWh from the wall for a full 276-mile charge, and Hawaii residential electricity averages 52.72¢ per kWh. That works out at $19.40 per 100 miles, or $0.19 a mile.

Hawaii is more expensive than average: 52.72¢ against a national mean of 19.42¢, which ranks it 51 of 51 for electricity price. The same car costs $13.32 to fill in Nevada and $53.55 in Hawaii — a 4.0× spread across the country for identical driving.

This is one of the few places where the sum does not favour electricity. At 52.72¢ per kWh, running the Volvo EX90 costs $19.40 per 100 miles while a 30 mpg petrol car costs $13.62 — so over 12,000 miles you would spend about $694 more on electricity. Home solar or an off-peak tariff changes that quickly, but the flat residential rate does not.

Similar EVs in Hawaii

Charging cost of comparable EVs in Hawaii
Vehicle	Per 100 mi	Full charge	Per year
Cadillac Lyriq	36.8 kWh	$63.25	$2,328
Genesis Electrified GV70	37.3 kWh	$49.16	$2,360
Jeep Wagoneer S	36.2 kWh	$56.11	$2,290
Ford Mustang Mach-E	37.4 kWh	$55.21	$2,366
Polestar 3	37.5 kWh	$61.68	$2,372
Mercedes-Benz EQE	36 kWh	$58.46	$2,278

The same car in nearby-priced states

Charging a Volvo EX90 in states with similar electricity prices
State	¢/kWh	Full charge	Per year
Maine	29.59	$30.05	$1,307
Massachusetts	29.61	$30.07	$1,308
California	34.74	$35.28	$1,534

Frequently asked questions

How much does it cost to charge a Volvo EX90 in Hawaii?

$53.55 for a full charge from empty. The car needs 101.6 kWh at the wall and Hawaii residential electricity averages 52.72¢ per kWh.

How much does a Volvo EX90 cost per mile in Hawaii?

About $0.19 a mile, or $19.40 per 100 miles. Over 12,000 miles a year that is roughly $2,328 of electricity.

Is charging a Volvo EX90 cheaper than petrol in Hawaii?

Not at the flat residential rate. Electricity costs $19.40 per 100 miles here against $13.62 for a 30 mpg petrol car, so you would spend roughly $694 more a year. Hawaii has the kind of electricity prices where an off-peak tariff or solar makes the difference.

How long does a full charge last?

The EPA rates the Volvo EX90 at 276 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 36.8 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.