BLUF: ComEd EV rate plans offer the cheapest EV charging during overnight off-peak hours, typically from 11:00 p.m. to 7:00 a.m.. Charging during these windows can reduce your EV charging costs by 30%–50% compared to standard daytime rates.
If you want to avoid an EV charging bill increase, enrolling in the right ComEd plan and charging at the best times is essential.
ComEd EV Rate Plans Explained
ComEd, the primary electric utility for northern Illinois, offers special electricity rate structures designed to encourage electric vehicle charging during low-demand hours. These ComEd EV rate plans reward drivers who shift charging away from peak grid usage times.
Unlike flat-rate electricity pricing, EV-focused plans use time-of-use (TOU) pricing. That means the price you pay per kilowatt-hour (kWh) depends on when you charge.
- Lower rates overnight when demand is lowest
- Higher rates during daytime peak hours
- Best suited for drivers who can schedule charging

EV Off-Peak Rate ComEd: What “Off-Peak” Really Means
The EV off-peak rate ComEd offers is the cornerstone of EV savings. Off-peak hours occur when fewer homes and businesses are using electricity, allowing ComEd to charge less per kWh.
Typical ComEd EV Off-Peak Hours
| Time Period | Rate Type | Cost Impact |
|---|---|---|
| 11:00 p.m. – 7:00 a.m. | Off-Peak | Lowest EV charging rates |
| 7:00 a.m. – 2:00 p.m. | Mid-Peak | Moderate pricing |
| 2:00 p.m. – 11:00 p.m. | On-Peak | Highest rates |
These time windows may vary slightly by season, but overnight charging consistently delivers the best value.
Best Time to Charge EV ComEd Customers Should Follow
The best time to charge EV ComEd customers have is overnight, ideally after 11:00 p.m. Charging during this period minimizes strain on the grid and maximizes your savings.
Why Overnight Charging Costs Less
- Lower overall electricity demand
- Less competition with commercial and industrial usage
- Reduced need for expensive power generation
How Much Can You Save?
Charging a typical EV that uses 30 kWh per session:
- Off-peak: ~$3–$5 per charge
- On-peak: $8–$12 per charge
Over a month, this difference can translate into $40–$80 in EV charging savings ComEd customers often see.
Comparing ComEd EV Rate Plans to Standard Residential Rates
Many EV owners start out on ComEd’s default residential rate without realizing how much they’re overpaying.
| Plan Type | Pricing Structure | Best For |
|---|---|---|
| Standard Residential | Flat or hourly pricing | Homes without EVs |
| ComEd EV Rate Plans | Time-of-use (TOU) | EV owners who charge overnight |
If you consistently charge during off-peak hours, the EV-specific plan almost always wins.

Will EV Charging Cause a Bill Increase?
An EV charging bill increase is possible—but only if charging habits are unmanaged. The EV itself doesn’t raise costs; charging at the wrong time does.
Factors That Increase Your Bill
- Charging during on-peak hours
- Using fast chargers at home during the day
- Not enrolling in EV-specific rate plans
How to Avoid Higher Bills
- Enroll in ComEd EV rate plans
- Schedule charging after 11:00 p.m.
- Use smart chargers or vehicle timers
When managed correctly, EVs often lower total transportation costs compared to gasoline vehicles.
How to Enroll in ComEd EV Rate Plans
Signing up is straightforward and doesn’t require new wiring or meters in most cases.
Step-by-Step Enrollment
- Log in to your ComEd online account
- Navigate to “Rate Plans”
- Select the EV time-of-use option
- Confirm your enrollment
Changes usually take effect within one billing cycle.
Smart Charging Tips to Maximize EV Charging Savings ComEd Offers
Maximizing EV charging savings ComEd provides is about automation and consistency.
Best Practices
- Enable delayed charging in your EV settings
- Install a Wi-Fi-enabled Level 2 charger
- Track monthly kWh usage through ComEd’s dashboard
Advanced Optimization
Some EV owners pair TOU plans with solar panels or home batteries to further reduce grid dependence and costs.
Seasonal Rate Changes to Watch
ComEd adjusts peak pricing during summer months when air conditioning demand rises.
- Summer on-peak rates are higher
- Winter off-peak savings are often greater
- Overnight charging remains the best option year-round
FAQ: ComEd EV Rate Plans
What are ComEd EV rate plans?
ComEd EV rate plans are time-of-use electricity plans that offer lower rates for EV charging during off-peak hours, typically overnight.
What is the EV off-peak rate ComEd offers?
The EV off-peak rate ComEd offers applies mostly between 11:00 p.m. and 7:00 a.m., when electricity demand is lowest.
What is the best time to charge EV ComEd customers should follow?
The best time to charge EV ComEd customers have is overnight after 11:00 p.m. to minimize charging costs.
Will charging an EV increase my electric bill?
An EV charging bill increase can happen if charging occurs during peak hours, but off-peak charging often keeps costs low.
How much EV charging savings ComEd customers can expect?
EV charging savings ComEd customers can expect typically range from 30% to 50% when charging exclusively during off-peak hours.
Final Takeaway: Charge Smarter, Pay Less
Choosing the right ComEd EV rate plans and charging during off-peak hours is the fastest way to cut EV ownership costs. With minimal setup and smart scheduling, you can drive electric without worrying about higher bills.
Take control of your EV charging today—enroll in a ComEd EV rate plan and start saving every night.