How much do I save on EV fuel costs moving from Hawaii to California?

Switching from Hawaii to California saves about $433/year on EV home charging at 12,000 miles/year. Over 5 years that's roughly $2,165 — before accounting for any public charging.

How do Hawaii and California electricity rates compare to the national average?

The national average residential electricity rate is 16.1¢/kWh ($508/year for 12,000 EV miles). Hawaii at 44.3¢/kWh is 28.2¢ above the national average. California at 30.6¢/kWh is 14.5¢ above.

How much does an EV save vs gas in Hawaii vs California?

At current gas prices, a 28-MPG gas car costs $1980/year to fuel in Hawaii — an EV saves roughly $581/year there. In California, the gas cost runs $2079/year, making the EV savings about $1113/year. Both states favor EVs on fuel cost; the margin just differs.

EV Charging Cost: Hawaii vs California (2026)

Q: Is EV charging cheaper in Hawaii or California?

California has lower home electricity rates for EV charging — Hawaii averages 44.3¢/kWh vs. 30.6¢/kWh in California. At 12,000 miles/year (3.8 mi/kWh), that's $1399/year in Hawaii vs. $966/year in California — a $433/year difference.

California electricity runs 30.6¢/kWh vs 44.3¢/kWh in Hawaii. At 12,000 miles/year, that's $433/year less to charge at home.

Hawaii

44.3¢

per kWh

$1399/year

+28.2¢ vs national avg

California

30.6¢

per kWh

$966/year

+14.5¢ vs national avg

Hawaii vs California — EV Charging Breakdown

Home charging at 12,000 miles/year (3.8 mi/kWh efficiency). Green = lower cost.

Metric	Hawaii	California	National Avg
Electricity rate	44.3¢/kWh	30.6¢/kWh ✓	16.1¢/kWh
Cost per mile (EV)	11.7¢/mi	8.1¢/mi ✓	4.2¢/mi
Annual home charging	$1399/yr	$966/yr ✓	$508/yr
Gas savings vs EV	$581/yr	$1113/yr ✓	—

EIA 2025 residential rates. 12,000 mi/year at 3.8 mi/kWh. Gas savings vs. 28 MPG car at state avg pump price. Home charging only — public L2 runs ~2–3× more, DCFC ~3–4×.

Annual Cost Impact

At 12,000 miles/year, home EV charging costs $1399/year in Hawaii vs $966/year in California. California comes out $433/year ahead.

Monthly savings

$36

Annual savings

$433

5-year savings

$2,165

Rate difference

13.7¢

Savings = Hawaii minus California home charging cost at 12,000 miles/year.

Frequently Asked Questions

Is EV charging cheaper in Hawaii or California?

California at 30.6¢/kWh vs. 44.3¢/kWh in Hawaii. At 12,000 miles/year, that gap is $433/year — real money over a 5-year lease or ownership period.

How much does an EV cost to charge annually in each state?

At home (100% home charging): Hawaii runs $1399/year, California runs $966/year. Switching from public L2 charging adds roughly 2.5× on top of the home rate.

How much does an EV save on fuel vs. a gas car in Hawaii?

In Hawaii, a 28-MPG gas car costs about $1980/year in fuel. An EV at 44.3¢/kWh costs $1399/year — roughly $581/year less.

Do electricity rates vary within a state?

Yes. Statewide averages hide real spread between utilities. California's PG&E customers pay well above the state average, while LADWP customers pay less. If you're buying an EV, check your specific utility's EV rate — many offer off-peak discounts that cut the effective rate by 30–50%.

Related Comparisons

California vs Texas → California vs Florida → Washington vs California → California vs Nevada →

See full breakdown: EV charging in Hawaii · EV charging in California · All state comparisons · EV vs gas by state