EV charging at home: what it costs by state
An EV adds kWh to your bill. The state price decides what they cost. A driver in the cheapest state pays about a third of a driver in the most expensive state for the same miles.
The sum
The DOE Alternative Fuels Data Center uses 27 kWh per 100 miles as its example and notes that a 200-mile range takes about a 54 kWh battery. The Federal Highway Administration lists average annual miles per driver at 13,476 (page undated). Together: 27 kWh per 100 miles times 13,476 miles is 3,639 kWh a year, or 303 kWh a month.
At the 17.30 cent U.S. average that is $629 a year, about $52 a month. Your car's number can differ. Check its window sticker or the vehicle's own consumption display and use that.
Cheapest states
United States, Yearly cost of charging an EV at home, 13,476 miles, 27 kWh per 100 miles: EIA retail sales 2025; DOE AFDC and FHWA for the driving assumptions.
CSV| State | Home price 2025, cents per kWh | Cost per 100 miles | Cost per year, 13,476 miles | Added use per month | Share of average home use |
|---|---|---|---|---|---|
| North Dakota | 11.81 | $3.19 | $430 | 303 kWh | 28% |
| Idaho | 11.82 | $3.19 | $430 | 303 kWh | 32% |
| Nebraska | 12.34 | $3.33 | $449 | 303 kWh | 31% |
| Louisiana | 12.57 | $3.39 | $457 | 303 kWh | 25% |
| Arkansas | 12.84 | $3.47 | $467 | 303 kWh | 28% |
| Montana | 12.98 | $3.50 | $472 | 303 kWh | 36% |
| Utah | 13.07 | $3.53 | $476 | 303 kWh | 39% |
| Washington | 13.11 | $3.54 | $477 | 303 kWh | 32% |
Source: EIA retail sales 2025 (home price); 27 kWh per 100 miles from DOE AFDC; 13,476 miles from FHWA; average home use from EIA monthly sales 2025. Retrieved 2026-10-02. CSV, 51 rows.
Most expensive states
| State | Home price 2025, cents per kWh | Cost per 100 miles | Cost per year, 13,476 miles | Added use per month | Share of average home use |
|---|---|---|---|---|---|
| Hawaii | 40.59 | $10.96 | $1,477 | 303 kWh | 59% |
| California | 32.54 | $8.79 | $1,184 | 303 kWh | 63% |
| Massachusetts | 30.48 | $8.23 | $1,109 | 303 kWh | 51% |
| Rhode Island | 29.46 | $7.95 | $1,072 | 303 kWh | 54% |
| Connecticut | 29.38 | $7.93 | $1,069 | 303 kWh | 43% |
| Maine | 27.78 | $7.50 | $1,011 | 303 kWh | 57% |
| New York | 26.39 | $7.13 | $960 | 303 kWh | 52% |
| Alaska | 26.09 | $7.04 | $949 | 303 kWh | 54% |
Source: EIA retail sales 2025; DOE AFDC; FHWA; EIA monthly sales 2025. Retrieved 2026-10-02. CSV, 51 rows.
Vehicle efficiency matters as much as location
Three vehicles driven the same miles differ more than two neighboring states do. Compare at the U.S. average price:
| Vehicle use | Cost per 100 miles at the U.S. average price | Cost per year, 13,476 miles | Added use per month |
|---|---|---|---|
| 25 kWh per 100 miles | $4.33 | $583 | 281 kWh |
| 27 kWh per 100 miles | $4.67 | $629 | 303 kWh |
| 30 kWh per 100 miles | $5.19 | $699 | 337 kWh |
| 35 kWh per 100 miles | $6.05 | $816 | 393 kWh |
Source: Computed at the 17.30 cent U.S. 2025 average; 27 is the DOE AFDC example, 25, 30 and 35 are scenarios, not measurements. Retrieved 2026-10-02. CSV, 4 rows.
What this overstates and understates
A home price here is the 2025 state average, revenue over kWh. Your marginal price after the first block of use may be higher or lower. About 49 states have a utility offering a residential time-of-use rate in the EIA-861 2024 file, and 15,832,411 home customers are enrolled in dynamic pricing programs nationwide. Charging off-peak on such a plan can cost less than the table shows; this site has no plan rates: no data.
Public fast charging costs more per kWh than home charging. We have no data on public prices. We also have no gasoline price series here, so we do not compare with a gas car.
The federal new clean vehicle credit is not available for vehicles acquired after September 30, 2025, according to the IRS. Check state and utility programs separately.
Key facts and where they come from
| Fact | Value | Source | Date |
|---|---|---|---|
| Example EV use, DOE AFDC | 27 kWh per 100 miles | DOE AFDC, Charging Electric Vehicles at Home, afdc.energy.gov | retrieved 2026-10-02 |
| Example battery for 200-mile range | 54 kWh | DOE AFDC, Charging Electric Vehicles at Home | retrieved 2026-10-02 |
| Average annual miles per driver | 13,476 | FHWA, Average Annual Miles per Driver by Age Group (fhwa.dot.gov/ohim/onh00/bar8.htm) | page undated, retrieved 2026-10-02 |
| Added energy per year | 3,639 kWh | Computed from the two lines above | 2026-10-02 |
| U.S. home price | 17.30 cents per kWh | EIA retail sales, 2025 | 2025 annual |
| U.S. yearly charging cost | $629 | Computed | 2025 price |
| Cheapest state: North Dakota | $430 per year | Computed from EIA 2025 price | 2025 price |
| Most expensive state: Hawaii | $1,477 per year | Computed from EIA 2025 price | 2025 price |
| New clean vehicle credit cut-off | Not available for vehicles acquired after Sept. 30, 2025 | IRS, Credits for new clean vehicles purchased in 2023 or after (irs.gov) | retrieved 2026-10-02 |
| Home customers in dynamic pricing programs | 15,832,411 | EIA-861 2024 Dynamic_Pricing | 2024 data |
| States with a utility offering residential TOU | 49 | EIA-861 2024 Dynamic_Pricing | 2024 data |
Related guides
Questions
How much does it cost to charge an EV at home?
At 27 kWh per 100 miles and the 17.30 cent U.S. average, about $4.67 per 100 miles.
How much will an EV add to my bill?
About 303 kWh a month.
Which state is cheapest for EV charging?
North Dakota: about $430 a year at the 2025 average price.
Which state is the most expensive?
Hawaii: about $1,477 a year.
Does the 13,476-mile figure fit me?
It is a national average per driver. Use your own miles.
Is charging cheaper at night?
On a time-of-use plan it can be. This site has no plan rates: no data.
Is the federal EV credit still available?
The IRS says the new clean vehicle credit is not available for vehicles acquired after September 30, 2025.
Does a home charger need a new circuit?
That depends on the charger and the panel. We have no data on installation cost.