Best Time to Charge Your Electric Vehicle at Home
Finding the best time to charge your Electric Vehicle (EV) at home is one of the easiest ways to lower your total cost of ownership. While most drivers simply plug in when they arrive home, a small tweak—timing your charge to match your utility’s cheapest hours—can shave real money off your monthly bill and reduce strain on the grid. This guide walks through practical strategies for choosing when to charge, how to read your bill, and how to automate the whole process so you never think about it again.
Understand Your Rate Plan
Your utility bill is the roadmap. Many electric utilities now offer Time-of-Use (TOU) plans where prices are lower at night and higher in the late afternoon and early evening. If you see line items like “Off-Peak,” “Mid-Peak,” or “Peak,” you’re on a TOU plan. The cheapest window is typically late night—often 9 p.m. to 7 a.m.—but schedules vary by region and season. If you’re not on TOU, call your utility or check its website: EV-specific plans frequently include deeply discounted overnight rates intended to encourage home charging.
Why Off-Peak Matters
Charging overnight benefits both your wallet and your community. Grid demand falls late at night, which means cleaner and cheaper power sources are available. By shifting your charging to off-peak hours, you help reduce the need for peaker plants that are expensive and carbon intensive. For you, the savings show up quickly. If your home rate drops from $0.28/kWh in the evening to $0.12/kWh at night and your EV takes 60 kWh for a full charge, that’s a difference of $9.60 per full battery—money that adds up fast over a month.
Program Your Car or Charger
Nearly every modern EV includes a “scheduled charging” feature. Set a start time that lines up with your cheapest window; many cars also offer a “departure time” setting that back-calculates charging to finish just before you leave. If your vehicle doesn’t support scheduling, a smart Level 2 charger almost certainly does. Look for an app option to “Charge only during off-peak.” Once configured, your car can be plugged in at any time but won’t start drawing power until the rate drops.
Balance Battery Health and Convenience
For daily commuting, you don’t need to charge to 100%. Most manufacturers recommend setting a daily target of 70–90% for battery longevity. If your off-peak window is short, prioritize reaching your daily target overnight and save 100% charges for road trips. Cold climates may require preconditioning—warming the battery and cabin before departure—which is most efficient while the car is still plugged in. Scheduling both charging and preconditioning means you leave with a warm cabin, a healthy battery, and maximum range.
Account for Weekend and Seasonal Shifts
Weekend rates sometimes differ from weekdays, and summer schedules can shift peak hours later into the evening. Revisit your settings each season or whenever your utility updates rates. Some utilities publish holiday schedules with all-day off-peak—prime time to queue up a full charge at a discount.
If You Have Solar
Home solar changes the calculus. If your array consistently produces more than you use during midday, daytime charging could be effectively “free.” Consider setting a partial daytime charge (for example, topping from 50% to 70% around noon) and finishing the remainder overnight at off-peak rates. Smart chargers and some home energy systems can automatically sync charging with solar production, prioritizing self-consumption over grid power.
Practical Charging Playbooks
- Daily Commuter: Plug in when you get home. Schedule charging 12 a.m.–6 a.m. with a daily limit of 80%.
- Work-from-Home: Charge to 70% every other night. If you need extra range, add a short off-peak session midweek.
- Road-Trip Prep: Keep your daily limit at 80%, then charge to 100% starting 2–3 hours before departure while preconditioning.
- With Solar: Midday top-up using solar surplus; overnight off-peak for the rest.
Key Takeaways
There’s no single “best time” for everyone, but there is a best time for you: when your electricity is cheapest and most abundant. Set your schedule once, align it with battery health recommendations, and enjoy the savings every month without lifting another finger.