Panel Capacity • 8 min read
Do I Need a Panel Upgrade for an EV Charger in Ontario?
Find out when an EV charger needs a panel upgrade, when load management may work, and why a load calculation matters before installing Level 2 charging.
You do not automatically need a 200 amp panel for a home EV charger. Some Ontario homes have enough electrical capacity for a Level 2 charger, while others need a panel upgrade, a lower-amperage charger setting, or an EV energy management system.
The real question is available capacity
A Level 2 charger adds a large dedicated electrical load. The safe answer depends on the home electrical service, existing loads, panel condition, wire routing, charger amperage, and how the home is used.
ConnectEV starts with a panel assessment and load calculation. That tells us whether your home can support the charger as-is or whether another path is needed.
When a panel upgrade is more likely
A panel upgrade is more likely if the home has 60A or 100A service, the panel is already full, major electric appliances are present, or the existing equipment is old or not in good condition.
Older Toronto and GTA homes often need a closer look because previous renovations, basement suites, air conditioning, hot tubs, and kitchen upgrades may already use much of the available capacity.
When load management may avoid a full upgrade
In some cases, an EV energy management system can monitor total home usage and reduce charger output when the home is drawing more power. This can make EV charging possible without upgrading the main service.
Load management is not the right fit for every home, but it is worth considering before assuming a full 200A service upgrade is required.
What to send for a fast answer
Send photos of your electrical panel, the main breaker, the panel label, your meter area, and where you want the charger installed. Include your EV model and charger model if you already have one.
That information usually lets ConnectEV give a realistic first recommendation before scheduling installation.
Quick Answers
Can a 100 amp panel support a Level 2 EV charger?
Sometimes. It depends on the home load calculation, existing appliances, charger amperage, and panel condition. A 100A panel does not automatically rule out Level 2 charging.
Is a 200 amp panel better for EV charging?
A 200A panel gives more capacity and future flexibility, but it is not always required. The right recommendation should come after an electrical assessment.
Do EV charger installs need permits in Ontario?
Yes. A dedicated EV charger circuit should be installed by a licensed electrician with the proper ESA process and inspection.