Is it cheaper to charge an EV at home or at a public station? At home, and it is not close: in the Northern Virginia and Washington DC metro area, home charging typically costs 50-70% less per mile than public charging. On Dominion Energy's residential rate of roughly $0.14-$0.15 per kWh as of mid-2026, home charging works out to about $0.03-$0.04 per mile, versus $0.07-$0.14 at public Level 2 and DC fast stations. Home charging also wins on time — about 10 seconds of hands-on effort a day versus 25-40 hours a year spent at public stations. This guide runs the full cost and time math using real Northern Virginia electricity rates and local public charging prices.
Key Takeaways
- Home charging on Dominion Energy rates costs approximately $0.03-$0.04 per mile driven, compared to $0.07-$0.14 per mile at public stations.
- At 12,000 miles annually, home charging saves roughly $874-$1,059 per year compared to public DC fast charging.
- Off-peak home charging rates reduce costs further, potentially saving an additional $100-$200 annually.
- Home charger installation typically pays for itself in 1-3 years through charging cost savings alone.
- Home charging takes about 10 seconds of hands-on time per day, versus 25-40 hours per year spent at public stations.
Is It Cheaper to Charge an EV at Home or at a Public Charging Station?
Home charging is cheaper by a wide margin. On Dominion Energy's standard residential rate of about $0.14-$0.15 per kWh as of mid-2026, home charging costs roughly $0.03-$0.04 per mile — or as little as $0.026 per mile on off-peak time-of-use rates. Public Level 2 stations at $0.25-$0.40 per kWh work out to $0.07-$0.11 per mile, and DC fast chargers at $0.35-$0.48 per kWh run $0.09-$0.14 per mile. Over 12,000 miles a year, that gap is worth $600-$1,059.
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Home Charging Costs in Northern Virginia
Home charging cost depends on your electricity rate and your vehicle's efficiency. Here is a detailed breakdown using real Northern Virginia numbers.
Dominion Energy Electricity Rates
Dominion Energy serves the majority of Northern Virginia residential customers. As of mid-2026, following the rate changes approved in late 2025, the standard residential rate works out to approximately $0.14-$0.15 per kWh all-in, including delivery charges, taxes, and fees. For homeowners on time-of-use rate plans, off-peak rates (typically 9 PM to 5 AM) can be as low as $0.08-$0.10 per kWh, significantly reducing charging costs for those who schedule overnight charging.
Cost Per Charge
A typical EV with a 60 kWh battery, such as a Chevy Bolt, Tesla Model 3, or Hyundai Ioniq 5, costs the following to charge from 20% to 100% (approximately 48 kWh consumed).
- Standard rate ($0.145/kWh): $6.96 per full charge
- Off-peak rate ($0.09/kWh): $4.32 per full charge
A vehicle with a larger battery like the Rivian R1T (approximately 135 kWh) costs more per charge but provides proportionally more range. The per-mile cost remains roughly the same.
Cost Per Mile
Most modern EVs achieve 3-4 miles per kWh of energy consumed. Using 3.5 miles/kWh as a reasonable average for Northern Virginia driving conditions (mixed highway and suburban), the per-mile cost is approximately $0.041 at the standard rate or $0.026 at off-peak rates. For context, a gas car achieving 30 MPG at $3.50 per gallon costs $0.117 per mile, nearly three times more than home EV charging at standard rates.
Monthly and Annual Home Charging Costs
For a driver covering 1,000 miles per month (12,000 annually), a common amount for Northern Virginia commuters, home charging costs are approximately $41 per month ($497 annually) at the standard Dominion Energy rate, and approximately $26 per month ($312 annually) at off-peak rates. Compare this to the $100-$120 per month that the same driving would cost in gasoline for a 30 MPG vehicle.
Good to know: Many Northern Virginia homeowners are surprised to learn that adding an EV to their household increases their electricity bill by only $30-$50 per month. The efficiency of electric motors (converting 85-90% of energy into motion) compared to gasoline engines (converting only 20-30% into motion) means you need far less energy to travel the same distance. This fundamental efficiency advantage is what makes EV charging so inexpensive.
Public Charging Costs in the DMV Area
Public charging costs vary widely depending on the network, speed level, and pricing structure. Here are typical rates for the major networks operating in Northern Virginia.
Level 2 Public Charging
Public Level 2 chargers, commonly found at shopping centers, office parks, and parking garages throughout Tysons, Reston, Arlington, and Fairfax, charge by the kWh or by the hour. ChargePoint Level 2 stations typically cost $0.25-$0.40 per kWh depending on the host's pricing, with some locations adding idle fees if you remain plugged in after charging completes. Blink Network stations range from $0.35-$0.49 per kWh. Some locations, like certain Whole Foods or mall parking garages in Tysons Corner, offer free Level 2 charging as an amenity, but availability is limited and wait times are common.
DC Fast Charging
DC fast charging is the most expensive public option but provides the quickest charge. Electrify America stations along the I-95 and I-66 corridors charge $0.43-$0.48 per kWh for non-members, with member pricing around $0.31-$0.36 per kWh. EVgo stations price at $0.35-$0.47 per kWh depending on location and power level. Tesla Superchargers cost $0.30-$0.40 per kWh for Tesla owners and $0.40-$0.50 per kWh for non-Tesla vehicles with the CCS adapter.
Public Charging Cost Per Mile
Using the same 3.5 miles/kWh efficiency, public charging costs per mile are approximately $0.07-$0.11 for Level 2 and $0.09-$0.14 for DC fast charging. At the higher end of DC fast charging pricing, the per-mile cost approaches gasoline at current fuel prices, eliminating much of the EV fuel cost advantage.
Head-to-Head Annual Cost Comparison
For a Northern Virginia driver covering 12,000 miles per year in a vehicle averaging 3.5 miles per kWh, the annual energy costs are as follows.
- Home charging (standard rate): Approximately $497 per year ($41/month)
- Home charging (off-peak rate): Approximately $312 per year ($26/month)
- Public Level 2 (average $0.32/kWh): Approximately $1,097 per year ($91/month)
- Public DC fast (average $0.40/kWh): Approximately $1,371 per year ($114/month)
- Gasoline (30 MPG, $3.50/gal): Approximately $1,400 per year ($117/month)
Annual Savings from Home Charging
Compared to relying solely on public Level 2 charging, home charging saves approximately $600-$785 per year. Compared to DC fast charging, savings are $874-$1,059 per year. Compared to gasoline, savings are $903-$1,088 per year. These savings are consistent year over year and compound over the life of your EV ownership.
How Long Does Home Charging Take vs Public Charging?
A home Level 2 charger refills a typical EV in 5-8 hours overnight, but your hands-on time is about 10 seconds a day — plug in and walk away. A public DC fast session takes 20-30 minutes at the station plus 10-15 minutes of driving each way, and public Level 2 is too slow to add meaningful range during an errand-length stop. Over a year of weekly public sessions, that is 25-40 hours at stations versus about 1 hour total for home charging.
Public Charging Time Costs
Every public charging session involves driving to the station, potentially waiting for an available charger, connecting and monitoring the charge, and driving back to your intended destination. Even a quick DC fast charge session takes 20-30 minutes at the station, plus 10-15 minutes of drive time each way. For the 50-60 charging sessions needed annually (assuming weekly fast charges), you spend 25-40 hours per year at public charging stations.
Home Charging Time Investment
Home charging takes approximately 10 seconds per day: walk to the car, plug in, walk away. The car charges while you sleep, eat dinner, or spend time with family. Over a year, the total time invested in home charging is approximately 1 hour. The time savings of 24-39 hours per year has real value, particularly for dual-income Northern Virginia households where evening and weekend time is at a premium.
Pro tip from our team: When calculating the return on investment for home charger installation, include both the financial savings and the time savings. If you value your time at $30 per hour (conservative for Northern Virginia), saving 30 hours per year at public stations is worth $900 in time value alone. Combined with the $600-$1,059 in charging cost savings, the total value of home charging easily exceeds $1,500 per year, paying for most installations in under 12 months.
When Public Charging Still Makes Sense
Home charging should be your primary charging strategy, but public charging has its place.
Road Trips
DC fast charging along interstate corridors is essential for road trips. Northern Virginia sits at the intersection of I-95, I-66, and I-81, providing excellent fast charging coverage for trips to the beaches, mountains, or other cities.
Opportunity Charging
Free or low-cost Level 2 charging at shopping centers, workplaces, and restaurants provides a convenient top-off while you are already stopped for another reason. Taking advantage of free charging at a Tysons Corner mall while shopping adds range at zero cost.
Emergency Top-Offs
If an unexpectedly long day of driving depletes your battery before you get home, a quick DC fast charge adds enough range to get home safely.
Invest in Home Charging and Start Saving
AJ Long Electric helps Northern Virginia homeowners make the switch from expensive public charging to affordable, convenient home charging. Our installations typically pay for themselves in 1-3 years through charging cost savings, after which you continue saving $600-$1,059 per year for the life of your EV. Contact AJ Long Electric at (571) 444-6886 to schedule your home charger installation and start putting those savings back in your pocket.
