Charging at home costs less than half what you pay at public stations

Home charging is the cheapest way to power an electric car. If you charge overnight using your household electricity, the cost depends entirely on your local electricity rate. Most people in the United States pay between 12 and 18 cents per kilowatt-hour (kWh) for residential electricity, though this varies significantly by region and time of day. At 15 cents per kWh, charging a car with a 60 kWh battery costs about $9 to go from empty to full.

Public fast chargers cost roughly two to three times more. DC fast charging networks like Electrify America, EVgo, and Tesla's Supercharger network charge between 30 and 50 cents per kWh, depending on the network and location. A full charge at a fast charger can cost $20 to $35. Level 2 chargers at workplaces, parking lots, and shopping centers typically cost 20 to 30 cents per kWh, or sometimes a flat fee of $2 to $5 per session.

The actual dollar amount you spend depends on three things: your electricity rate, how often you charge, and how far you drive. A person who charges at home every night and rarely uses public chargers will spend far less than someone who relies on fast chargers for long trips.

Key Takeaways

  • Home charging costs $8 to $12 per full charge in most of the United States, compared to $20 to $35 at public fast chargers.
  • Your electricity rate is the biggest factor in home charging cost, and rates vary by state, utility company, and time of day.
  • Installing a Level 2 home charger costs $500 to $2,500 including equipment and electrician labor, but many states and utilities offer rebates.
  • Public charging networks charge by the kilowatt-hour, by the minute, or as a flat session fee — read the pricing before you plug in.
  • Long road trips will cost more per mile than gas cars in some regions and less in others, depending on local electricity prices and charger availability.

Home charging costs vary by state and time of day

Residential electricity rates differ dramatically across the country. Hawaii, Massachusetts, and California have the highest rates, often above 20 cents per kWh. Louisiana, Oklahoma, and Washington have the lowest, often below 12 cents per kWh. Your specific rate depends on your utility company and whether you live in a deregulated market where you can choose your provider.

Many utilities offer time-of-use (TOU) rates that charge less during off-peak hours, usually late evening through early morning. If your utility offers TOU rates, charging between 9 p.m. and 6 a.m. might cost 8 to 10 cents per kWh instead of 16 to 20 cents during the day. Shifting your charging to off-peak hours can cut your electricity cost by 30 to 50 percent. Check your utility's website or call their customer service line to see whether TOU rates are available in your area.

To estimate your home charging cost, find your current electricity rate on your most recent utility bill, then multiply it by the size of your car's battery. A Tesla Model 3 has a 60 kWh battery; a Chevrolet Bolt has 65 kWh; a Hyundai Ioniq 6 has 84 kWh. Multiply the battery size by your rate per kWh to get the cost per full charge. If you charge twice a week, multiply that by 104 to get your annual cost.

Installing a home charger requires upfront investment but pays back quickly

A Level 2 home charger (the standard for residential use) costs $400 to $1,200 for the equipment itself. Installation labor runs $100 to $1,500 depending on how far your electrical panel is from where you want the charger, whether you need a new circuit, and local electrician rates. Total installed cost is typically $500 to $2,500.

Many states and utility companies offer rebates that cover 25 to 75 percent of the installation cost. California, New York, Colorado, and Massachusetts have particularly generous programs. The federal government does not currently offer a direct rebate for home charger installation, though some states use federal funding to support their own programs. Search your state's name plus "EV charger rebate" or contact your utility company directly to see what is available where you live.

The payback period is usually two to four years. If you install a $1,500 charger and save $500 per year on fuel costs compared to a gas car, you break even in three years. After that, every year of charging costs less than filling a gas tank would have.

Public fast charging costs more but is necessary for road trips

DC fast chargers are the only practical option for long drives. They add 150 to 200 miles of range in 20 to 30 minutes. Electrify America charges 43 to 50 cents per kWh depending on location and membership status. EVgo charges 35 to 45 cents per kWh. Tesla Superchargers charge members $0.25 to $0.50 per kWh depending on the location and time of day, with higher prices during peak hours.

Some networks charge by the minute instead of by the kilowatt-hour, which changes the math. Charging by the minute makes sense if you're adding just enough range to reach the next charger, but costs more if you sit and wait for a full charge. Always check the pricing screen before you start charging — it will show you the per-kWh rate, per-minute rate, or session fee.

Membership programs can lower the per-kWh cost. Electrify America's membership costs $4 per month and reduces the per-kWh rate by 10 to 15 percent. EVgo's membership is $10 per month and offers similar savings. If you take one long road trip per month, membership usually pays for itself.

Road trip charging costs depend on your route and local electricity prices

The cost per mile for a road trip varies widely. In California, where fast chargers cost 50 cents per kWh and electricity is expensive, a 300-mile trip might cost $40 to $50 in charging. In Texas or Oklahoma, where fast chargers cost 35 cents per kWh and electricity is cheaper, the same trip might cost $25 to $30. A gas car getting 25 miles per gallon would cost $35 to $45 in fuel for the same distance, depending on gas prices.

The real cost difference comes from how much time you spend charging. A gas car stops for 5 minutes. An electric car stops for 25 to 40 minutes at a fast charger. If you value your time at $20 per hour, that's an extra $8 to $13 per charge. Over a 1,000-mile road trip with four charging stops, the time cost adds up to $32 to $52.

Most people who own electric cars do not take frequent long road trips. They charge at home most of the time and use public fast chargers a few times per year. For those owners, the cost difference is negligible — home charging is so cheap that the occasional expensive fast charge barely moves the needle on annual fuel costs.

Comparing total fuel costs: electric versus gas over five years

A typical driver who charges at home and drives 12,000 miles per year will spend $400 to $600 per year on electricity. The same driver in a gas car getting 25 miles per gallon would spend $1,200 to $1,800 per year on fuel, depending on gas prices. Over five years, the electric car saves $3,000 to $7,000 in fuel costs.

This calculation assumes you charge at home most of the time. If you rely on public charging for 50 percent of your miles, the savings shrink to $1,500 to $3,500 over five years. If you take frequent long road trips and use fast chargers regularly, the gap narrows further.

The payback period for the higher purchase price of an electric car depends on the specific models you're comparing and the incentives available in your state. Federal tax credits up to $7,500 are available for new electric cars that meet certain criteria, and some states offer additional rebates. After accounting for these incentives and five years of fuel savings, most electric cars cost less to own than comparable gas cars.

Frequently Asked Questions

How much does it cost to charge an electric car overnight at home?

A full overnight charge costs $8 to $12 in most of the United States, assuming a 60 kWh battery and a residential electricity rate of 13 to 18 cents per kWh. If your utility offers time-of-use rates with lower off-peak pricing, the cost drops to $6 to $8. Check your electricity bill to find your exact rate.

Do I need to pay a membership fee to use public chargers?

No, but membership programs reduce the per-kWh cost by 10 to 15 percent. Electrify America's membership is $4 per month, and EVgo's is $10 per month. If you use fast chargers more than once a month, membership usually saves money. Most networks let you pay per charge without membership, though the per-kWh rate is higher.

Is it cheaper to charge during the day or at night?

Night is almost always cheaper if your utility offers time-of-use rates. Off-peak rates typically explore from 9 p.m. to 6 a.m. and cost 30 to 50 percent less than daytime rates. Contact your utility to see if TOU rates are available for your account, or check your bill to see if you're already on a TOU plan.

How much does it cost to install a home charger?

Equipment costs $400 to $1,200, and installation labor costs $100 to $1,500, for a total of $500 to $2,500. Many states and utilities offer rebates covering 25 to 75 percent of the cost. Search your state's name plus "EV charger rebate" to see what programs are available where you live.

Will charging an electric car cost more than gas on a long road trip?

It depends on local electricity prices and gas prices. In high-cost electricity regions like California, fast charging might cost slightly more per mile than gas. In low-cost regions like Texas, it costs less. The bigger cost is your time — fast charging takes 25 to 40 minutes instead of 5 minutes for gas, which adds up on long trips.