EV Charging Cost in Hawaii (2026)
Home rate: 44.3¢/kWh (28.2¢ above the national average). Charging 12,000 mi/yr at home costs $1399. Public DC fast charging costs $1383 for the same miles.
Charging Costs in Hawaii by Method
| Charging Method | Rate (¢/kWh) | Cost Per Mile | 12,000 mi/yr |
|---|---|---|---|
| Home Level 2 | 44.3¢ | 11.7¢ | $1399 |
| Public Level 2 | 110.8¢ | 29.2¢ | $3499 |
| DC Fast Charging | 43.8¢ | 11.5¢ | $1383 |
| Typical Mix (80% home / 15% L2 / 5% DCFC) | – | 14.3¢ | $1713 |
| Gas Car (28 MPG) | $4.62/gal | 16.5¢ | $1980 |
Assumes 3.8 mi/kWh EV efficiency, 12,000 miles/year. Public L2 and DCFC rates estimated from regional network pricing. Home rate: EIA 2025 residential average for Hawaii.
EV vs Gas in Hawaii: Fuel Cost Comparison
EV Charging in Hawaii: What to Know
Hawaii's residential electricity rate of 44.3¢/kWh is 28.2¢ above the national average of 16.1¢/kWh. High electricity rates in Hawaii reduce the fuel savings advantage of EVs. Check whether your utility offers a time-of-use (TOU) rate for overnight EV charging, which can cut costs substantially.
At 11.7¢ per mile for home charging versus 16.5¢ per mile for a 28 MPG gas car at current Hawaii gas prices ($4.62/gallon), the per-mile gap is 4.8¢. Over 12,000 miles per year, that's $581 in favor of the EV.
Most Hawaii utilities offer time-of-use rates that can reduce overnight charging costs below the residential average. If you charge overnight (midnight to 6am), ask your utility about EV or off-peak rates. Even a few cents per kWh savings adds up to $100–$200/year for average EV drivers.
Public Charging Networks in Hawaii
| Network | DC Fast (¢/kWh) | vs Home |
|---|---|---|
| Tesla Supercharger | 28¢–48¢ | -14% more |
| Electrify America | 25¢–48¢ | -18% more |
| EVgo | 37¢–55¢ | 4% more |
| ChargePoint | 15¢–49¢ | Varies by owner |
Network rates as of Q1 2026. Home rate: 44.3¢/kWh. "vs Home" uses network midpoint rate vs Hawaii's residential average. See the full charging cost comparison →
Frequently Asked Questions
How much does it cost to charge an EV in Hawaii?
Home charging in Hawaii costs 44.3¢/kWh. For a typical EV (3.8 mi/kWh), that's 11.7¢ per mile. Driving 12,000 miles per year costs about $1399 at home. Public DC fast charging runs about $1383 for the same miles.
Is Hawaii a good state for EV ownership?
Hawaii's electricity rate of 44.3¢/kWh is above the national average (16.1¢), which reduces the fuel savings advantage EVs typically offer. Time-of-use rates from your utility can close this gap.
How much does EV charging save vs gas in Hawaii?
At $4.62/gallon (#{@state[:name]} average), a 28 MPG gas car costs $1980/year for 12,000 miles. An EV charged at home costs $1399. Home charging saves $581/year — $2,905 over 5 years, before accounting for maintenance savings.
Compare Other States
Data Sources
Residential electricity rate for Hawaii: U.S. Energy Information Administration (EIA) Electric Power Monthly, 2025 residential averages. Gas price: AAA 2024 state average. EV efficiency: 3.8 mi/kWh (Tesla Model 3 / Chevy Equinox EV range). Public charging network rates: Q1 2026 network pricing. Last updated: March 2026.