If you’re considering an electric vehicle, one of your first questions is likely how much cost to charge electric car. Charging an electric vehicle’s battery costs less than fueling a gas car, but the exact amount depends on your local electricity rates.
This guide will break down all the variables. We’ll look at home charging, public stations, and everything in between.
You’ll get a clear picture of what to expect for your budget.
How Much Cost To Charge Electric Car
The core answer is simple: you need to know your car’s battery size and your electricity cost. Think of it like filling any other tank.
First, find your EV’s battery capacity in kilowatt-hours (kWh). A common size is around 60 kWh. Next, check your electricity bill for the cost per kWh. The national average is about 16 cents.
Here is the basic formula: Battery Size (kWh) x Electricity Rate ($ per kWh) = Charging Cost.
For a 60 kWh battery at 16 cents per kWh, a full charge costs about $9.60. Compare that to a tank of gas, and the savings become obvious. But this is just the starting point.
Real-world costs change based on several key factors.
Key Factors That Influence Your Charging Cost
Not every charge will cost the same. These elements play a huge role in your final bill.
Your Local Electricity Rates
This is the biggest variable. Rates vary wildly by state, utility provider, and even time of day. Some areas pay under 10 cents per kWh, while others pay over 30 cents.
You must check your current utility bill to get your exact rate.
Home Charging Vs Public Charging
Charging at home is almost always the cheapest option. You pay your standard residential rate. Public charging, especially DC fast charging, costs more. These stations have higher per-kWh fees or session fees to cover equipment and operation.
Battery Size And State Of Charge
A larger battery costs more to fill. Also, you rarely charge from completely empty to 100% full. Most daily charging just tops up the battery, which costs less. If you’re adding 20 kWh, you only pay for those 20 kWh.
Time Of Use Electricity Plans
Many utilities offer discounted rates during off-peak hours, like overnight. If you schedule your charging for these times, you can significantly reduce your cost. This requires a smart charger or using your car’s built-in scheduler.
Calculating Your Home Charging Costs
Home charging is where you’ll do most of your fueling. Let’s walk through a detailed calculation.
First, gather your information. You need your EV’s battery capacity and your electricity rate. Let’s use a real-world example.
Assume you drive a popular EV with a 75 kWh battery. Your electricity rate is 14 cents per kWh. You typically plug in when the battery is at 20% and charge to 80%.
- Calculate the kWh needed. From 20% to 80% is a 60% charge. 75 kWh x 60% = 45 kWh needed.
- Multiply by your rate. 45 kWh x $0.14 = $6.30 for that charging session.
That $6.30 might give you around 180 miles of range, depending on the vehicle. The cost per mile is roughly 3.5 cents. A gas car getting 30 MPG with $3.50 gas has a cost per mile of about 11.7 cents. The savings add up quickly over a year.
Understanding Public Charging Networks Costs
Public charging is essential for road trips and longer journeys. The pricing is less straightforward than at home.
There are three common pricing models used by networks like Tesla Superchargers, Electrify America, and EVGo.
- Per Kilowatt-Hour (kWh): You pay for the energy delivered. This is the most common and fairest method. Prices range from $0.25 to $0.50 per kWh.
- Per Minute: You pay for the time connected. This rate often changes based on your car’s charging power. It can be less predictable.
- Session or Idle Fees: A flat fee to start charging, plus additional fees if you leave your car plugged in after it’s full.
Always check the specific station’s pricing in its app before you plug in. Costs can vary even within the same network based on location.
Example Of A Public Charging Session
Imagine you stop at a DC fast charger on a trip. The rate is $0.36 per kWh. You add 50 kWh to your battery to continue your journey.
The math is simple: 50 kWh x $0.36 = $18.00. While more expensive than home, it’s still often cheaper than a tank of gasoline for the same distance.
Level 1, Level 2, And DC Fast Charging Compared
Not all chargers are created equal. The type of charger you use affects cost and convenience.
Level 1 Charging (120V Outlet)
This uses a standard household outlet. It’s very slow, adding about 3-5 miles of range per hour. The cost is just your home electricity rate, but the slowness makes it impractical for daily use for most people unless you drive very little.
Level 2 Charging (240V Outlet)
This is the recommended home charging solution. A Level 2 charger can add 20-40 miles of range per hour. It uses your home’s electricity, so the cost per kWh remains low. You may need to invest in the charging equipment and installation, which is a seperate upfront cost.
DC Fast Charging (Public Stations)
These are the high-powered stations along highways. They can add 100-200 miles of range in 20-30 minutes. As discussed, the per-kWh cost is higher. This is meant for travel, not regular use, both for cost and battery health reasons.
How To Minimize Your Electric Car Charging Expenses
You have significant control over your charging costs. Follow these tips to keep them as low as possible.
- Charge at Home Overnight: This leverages lower off-peak rates if your utility offers them. It’s also the most convenient.
- Install a Level 2 Home Charger: The upfront cost pays off in faster, more efficient charging at your low home rate.
- Use Public Charging Strategically: Rely on it for trips, not daily needs. Some networks offer membership plans that lower per-session costs for frequent users.
- Monitor Your Utility’s Plans: Investigate special EV charging rates or time-of-use plans that reward you for charging during low-demand periods.
- Pre-Condition Your Battery: Use your car’s feature to heat or cool the battery while still plugged in before driving. This uses grid power instead of battery power, preserving your range.
Upfront Costs: Charging Equipment And Installation
When calculating total cost, remember the initial setup for home charging. The vehicle’s price is one thing, but you need a way to fuel it efficiently.
A basic Level 2 home charging unit costs between $400 and $800. Professional installation can range from $500 to $2,000, depending on your electrical panel’s location and capacity.
Many states and utilities offer rebates or tax credits to offset these equipment and installation costs. Always check for local incentives before you purchase.
While this is an upfront investment, it drastically improves your EV ownership experience and ensures you get the lowest possible fueling cost for years to come.
Comparing Electric Charging To Gasoline Costs
Let’s look at a direct annual comparison. This makes the financial benefit very clear.
Assume you drive 12,000 miles per year.
- EV Scenario: Your EV gets 3.5 miles per kWh. You charge mostly at home at 16 cents/kWh.
- Annual kWh used: 12,000 miles / 3.5 mi/kWh = ~3,429 kWh.
- Annual cost: 3,429 kWh x $0.16 = ~$549.
- Gas Car Scenario: A comparable gas car gets 28 MPG. Average gas price is $3.60 per gallon.
- Annual gallons used: 12,000 miles / 28 MPG = ~429 gallons.
- Annual cost: 429 gallons x $3.60 = ~$1,544.
In this example, the EV driver saves about $995 per year on fuel. Over five years, that’s nearly $5,000 in savings, which can help offset a higher vehicle purchase price.
Frequently Asked Questions
Here are answers to some common questions about electric car charging costs.
Is It Cheaper To Charge An EV Than Buy Gas?
Yes, in virtually all cases. Based on national averages, fueling an EV with electricity costs about one-third to one-half the cost of fueling a similar gas-powered car. The exact savings depend on your local gas and electricity prices.
How Much Does It Cost To Charge A Tesla At Home?
The cost follows the same formula. For a Tesla Model 3 with a 60 kWh battery, a full charge at the national average of 16 cents/kWh costs about $9.60. Using off-peak rates or solar panels can reduce this cost even further.
How Much Does A Public Charging Station Cost To Use?
Public charging, especially DC fast charging, typically costs between $0.25 and $0.50 per kilowatt-hour. Some networks charge by the minute, which can range from $0.15 to $0.30 per minute depending on your car’s charging speed.
Can I Charge My EV For Free?
Some public chargers at shopping centers, hotels, or workplaces still offer free Level 2 charging as an amenity. However, free DC fast charging is increasingly rare. Some automakers, like Tesla or Ford, have also offered periods of free supercharging with new vehicle purchases.
Does Charging Cost More During Peak Hours?
If you are on a time-of-use electricity plan at home, yes, charging during peak afternoon and evening hours will be more expensive. Public charging stations may also implement surge pricing during busy times. Charging overnight is almost always the cheapest option.
Final Thoughts On Charging Expenses
Figuring out how much it costs to charge an electric car is a straightforward calculation. The main variables are under your control: where you charge and when you charge.
By prioritizing home charging and taking advantage of off-peak rates, you can minimize your expenses. The savings compared to gasoline are substantial and predictable.
While public charging is more costly, it’s a valuable tool for long-distance travel. The overall cost of ownership for an EV, when including fuel and maintenance, is typically lower than for a conventional car. This makes the switch to electric not just an environmental choice, but a smart financial one for many drivers.
Always check your local utility rates and available incentives to get the most accurate picture for your household. With a little planning, you can enjoy the benefits of electric driving while keeping your energy costs low.