Blog/How Time-of-Use Charging Can Cut Your EV Electricity Bill in Half

How Time-of-Use Charging Can Cut Your EV Electricity Bill in Half

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How Time-of-Use Charging Can Cut Your EV Electricity Bill in Half

If you're plugging in your EV the moment you get home, you're probably charging during the most expensive hours of the day. Time-of-use (TOU) pricing rewards you for shifting that same charging session to late night — when electricity is cheapest and the grid has spare capacity.

How TOU Pricing Works

Electricity costs more to generate and deliver during peak demand. Utilities pass that cost difference to customers through TOU rates. A typical TOU schedule looks like this:

PeriodHoursRate
Peak4pm - 9pm$0.30-$0.50/kWh
Mid-Peak6am - 4pm$0.15-$0.25/kWh
Off-Peak9pm - 6am$0.08-$0.14/kWh
Real savings math: Charging 30 kWh daily at peak ($0.38) = $11.40/day = $342/month. Same charge at off-peak ($0.11) = $3.30/day = $99/month. Annual savings: $2,916. That pays for your charger, installation, AND part of your car payment.

How to Set It Up

Step 1: Switch to a TOU rate plan

Call your utility and ask to switch to a time-of-use plan. Most utilities offer this for free. Some have EV-specific TOU plans with even deeper off-peak discounts. The switch usually takes one billing cycle.

Time of use charging save money ev — practical guide overview
Time of use charging save money ev

Step 2: Schedule your charging

You have two options for scheduling:

  • Smart charger scheduling: Set your start time in the charger's app (ChargePoint, JuiceBox, Wallbox). The charger waits until off-peak hours to begin
  • Vehicle scheduling: Most EVs have built-in departure time or scheduled charging features. Set it in your car's app or touchscreen
Use the charger app, not the car. Vehicle scheduling often ties to departure time and may start charging earlier than necessary. Charger-based scheduling gives you precise control over start time, ensuring you're always charging at the cheapest rate.

Step 3: Verify it's working

Check your first TOU billing statement. Compare the kWh used during off-peak vs peak. If you're seeing significant peak usage, your scheduling isn't working properly — adjust the start time.

Time of use charging save money ev — step-by-step visual example
Time of use charging save money ev
Weekend rates: Many TOU plans have lower rates all day on weekends. If you have a long commute, topping off Saturday and Sunday at mid-day rates is still cheaper than weekday peak charging.

Potential Downside of TOU Plans

TOU plans make all your home electricity usage time-dependent — not just EV charging. If you run your AC heavily during peak hours (4-9pm on hot summer days), your non-EV electricity costs could increase. Run the numbers on your full household usage, not just EV charging.

Important: A separate EV meter (available from some utilities for $200-$500) puts only your charger on TOU pricing while keeping your home on a flat rate. This gives you the best of both worlds if your household uses a lot of peak electricity.

Want to see exactly how much TOU savings would mean for your driving habits? Use our Charging Cost Calculator to compare peak vs off-peak costs for your specific situation.

Disclaimer: Dieser Artikel dient ausschließlich der Information. Smart-Home-Installationen können elektrische Verkabelung erfordern und müssen den lokalen Bauvorschriften entsprechen. Arbeiten an der Elektrik sollten nur von einem zugelassenen Elektriker durchgeführt werden.

About the Team

The Smart EV Home Charger Team

We help first-time EV owners navigate home charging without the jargon. Our editorial team covers charger reviews, installation guides, electrical panel basics, and cost-saving strategies.

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