U.S. residential electricity EIA data: July 2026 US average 18.3¢/kWh Updated
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Outdoor & Garage · Hawaii

How Much Does It Cost to Run a EV Charger in Hawaii?

The short answer

In Hawaii, a Level 2 EV charger drawing 7,200W costs about $3.46 per hour — roughly $210 a month if it runs 2 hours a day.

That’s based on Hawaii’s average residential rate of 48.0¢/kWh (EIA, July 2026), 162% above the US average.

Source: U.S. EIA, July 2026 data · Updated

EV Charger cost by daily use in Hawaii

Cost at 48.0¢/kWh, the Hawaii average (EIA, Jul 2026)
Daily usekWh/monthPer dayPer monthPer year
1 hour/day 219.0 $3.46 $105 $1,261
2 hours/day 438.0 $6.91 $210 $2,523
4 hours/day 876.1 $13.82 $421 $5,046
8 hours/day 1,752.2 $27.65 $841 $10,092
12 hours/day 2,628.3 $41.47 $1,262 $15,137
24 hours/day 5,256.6 $82.94 $2,523 $30,275

Hawaii vs other states

Hawaii has the most expensive electricity in the country, so running a Level 2 EV charger here costs $1,854 more a year than in Louisiana at the same usage.

Hawaii has the most expensive residential electricity of the 50 states and DC. Hawaii price per kWh · all states ranked

Electricity price trend in Hawaii

48.0¢/kWh in July 2026 — ▲ +22.0% from a year earlier.

How to lower the cost of running a Level 2 EV charger

Level 2 chargers run on a 240V circuit and typically deliver 7.2 kW on a 40-amp circuit, or up to 11.5 kW on a 60-amp circuit. Your car decides how fast it accepts power. Two hours a day at 7.2 kW is about 14 kWh, enough for roughly 40–50 miles for most EVs. Charging overnight on a time-of-use plan can lower the cost considerably compared with the average rate shown here.

  • Ask your utility about EV or time-of-use rates and schedule charging overnight.
  • Charge to 80% for daily driving — it's faster and better for the battery.
  • Precondition the car while plugged in during cold weather.

Questions

Frequently asked questions

How much does it cost to run a Level 2 EV charger for 24 hours in Hawaii?

Running a 7,200W Level 2 EV charger for 24 hours uses about 173 kWh, which costs about $82.94 at Hawaii’s average rate of 48.0¢/kWh.

How many kWh does a Level 2 EV charger use per month?

At 2 hours a day, a typical Level 2 EV charger uses about 438 kWh a month. In Hawaii that costs $210.

Is it expensive to run a Level 2 EV charger in Hawaii?

Hawaii has the most expensive residential electricity of the 50 states and DC at 48.0¢/kWh — one of the most expensive. Running a Level 2 EV charger here costs about $2,523 a year at typical use, compared with $962 at the national average rate.

What is the electricity rate in Hawaii right now?

The average residential electricity rate in Hawaii was 48.0¢ per kWh in July 2026, according to the latest EIA data — up 22.0% from a year earlier.

How much does it cost to charge an EV at home?

Multiply the kWh you add by your electricity rate. Adding 14 kWh (about 40–50 miles) costs 14 × your rate — for example, about $2.45 at 17.5¢/kWh.

EV Charger costs in nearby states

Cheapest and priciest states

Sources & method