EV Charging Cost by State (2025)
Last updated: October 2025
Home electricity prices vary across the U.S., so the cost to charge an EV changes by state.
On average, residential electricity is around $0.17–$0.18 per kWh in 2025, but some states are notably lower or higher.
Use the table below to see how your state compares.
Cheapest states: Washington ($0.08/kWh), Idaho ($0.09/kWh), Oregon ($0.10/kWh). Most expensive: Hawaii ($0.32/kWh), Connecticut ($0.24/kWh), Massachusetts ($0.23/kWh). National average is $0.16/kWh with a 4x difference between cheapest and most expensive states.
We assume 30 kWh per 100 miles (≈ 3.3 mi/kWh), a typical real-world figure for many EVs.
- Monthly cost = (monthly kWh use) × (state ¢/kWh)
- Annual cost = (monthly cost) × 12
Actual results vary with driving style, climate, tires, HVAC use, and charging habits.
Prices shown are average residential "all-in" rates (energy + delivery + taxes) by state.
Within a state, utilities and Time-of-Use plans can be above or below the average. Public DC fast charging uses commercial pricing and is typically higher than home rates.
Commonly includes Idaho, Nevada, Nebraska, Washington—often about 12–14 ¢/kWh.
| Rank | State | Avg Rate | Monthly Cost* | Annual Cost* |
|---|---|---|---|---|
| 1 | Washington | $0.08/kWh | $32 | $384 |
| 2 | Idaho | $0.09/kWh | $36 | $432 |
| 3 | Oregon | $0.10/kWh | $40 | $480 |
| 4 | Utah | $0.11/kWh | $44 | $528 |
| 5 | North Dakota | $0.11/kWh | $44 | $528 |
#1 Washington
$0.08/kWh#2 Idaho
$0.09/kWh#3 Oregon
$0.10/kWh*Based on 400 kWh monthly EV charging (12,000 miles/year)
Commonly includes Hawaii, Massachusetts, Connecticut—often about 28–40+ ¢/kWh.
Note: Rankings can shift over time. Values reflect typical 2025 levels and are updated periodically.
| Rank | State | Avg Rate | Monthly Cost* | Annual Cost* |
|---|---|---|---|---|
| 1 | Hawaii | $0.32/kWh | $128 | $1,536 |
| 2 | Connecticut | $0.24/kWh | $96 | $1,152 |
| 3 | Massachusetts | $0.23/kWh | $92 | $1,104 |
| 4 | Rhode Island | $0.22/kWh | $88 | $1,056 |
| 5 | New Hampshire | $0.21/kWh | $84 | $1,008 |
#1 Hawaii
$0.32/kWh#2 Connecticut
$0.24/kWh#3 Massachusetts
$0.23/kWh*Based on 400 kWh monthly EV charging (12,000 miles/year)
Home electricity is usually significantly cheaper than public DC fast charging.
Many fast-charging networks price around $0.45–$0.65 per kWh depending on location and membership.
Exceptions exist (employer programs, off-peak promos, limited-time deals), but for most drivers, home is the lowest-cost option.
Pacific Northwest (Cheapest)
Average: $0.09/kWh | Annual savings vs national average: $336
Abundant hydroelectric power keeps rates low. Washington, Oregon, and Idaho lead the nation.
Mountain West (Low-Cost)
Average: $0.12/kWh | Annual savings vs national average: $192
Coal and natural gas resources provide affordable electricity. Utah, Wyoming, Colorado offer good rates.
Northeast (Expensive)
Average: $0.21/kWh | Annual premium vs national average: $240
High delivery costs and renewable energy mandates increase rates. Connecticut, Massachusetts, Rhode Island.
Hawaii (Most Expensive)
Average: $0.32/kWh | Annual premium vs national average: $768
Island isolation and oil dependence create the nation's highest electricity costs.
High-Cost States
- •Time-of-use rates: Charge during off-peak hours (typically 11 PM - 7 AM)
- •Solar + storage: Consider home solar with battery backup
- •Workplace charging: Take advantage of employer charging programs
- •Public DC fast charging: May be competitive with home rates
Low-Cost States
- •Home charging advantage: Maximize home charging over public options
- •Level 2 installation: Invest in 240V home charging setup
- •EV-specific rates: Check for special EV electricity plans
- •Load management: Use smart charging to avoid peak demand charges
Do TOU plans change the math?
Yes. Off-peak TOU rates can lower your cost below the state average.
Why do winter costs feel higher?
EVs use more energy for cabin and battery heating, raising kWh/100 mi.
Should I use mi/kWh or kWh/100 mi?
Either works—this page uses kWh per 100 miles for clarity.
How to find the best electricity rates for EV charging
Compare utility plans and find EV-specific rates in your area.
What's the cheapest time to charge an EV?
Understanding time-of-use rates and optimal charging schedules.
Can solar panels lower your EV charging cost?
Calculate solar savings and payback periods for EV charging.