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Make It Right Blogs - Feature Image - Sherry Holmes Blog - 6 Things To Know Before Installing An EV Charger In Your Home In Ontario

6 Things To Know Before Installing An EV Charger In Your Home In Ontario

By Sherry Holmes

Mike’s Advice / Electrical

Friday, May 31st, 2024 @ 4:31pm

If You’re Considering Installing An EV Charger, Can Your Electrical System Handle the Charge?

I am very excited to announce that my husband Blake and I just got our very first electric vehicle! I’m super excited to see how it all works out, especially with the amount of driving we both do. Over the past few years, we’ve done quite a lot of research and talked to EV owners, but one of the most important things we did was consult with Trevor Trembley, Technical Advisor with the Electrical Safety Authority.

Any new car is a big purchase but an electric vehicle adds a whole new set of things to consider. Did you know that it is estimated that by 2030 half of the vehicles sold in Canada will be electric? With the popularity of EVs increasing and more homeowners looking to get an EV Charger installed in their home, it’s important we’re all to be educated on how this will affect our current electrical systems and how to do the installation safely as this is a big load on your system.

These are the top tips you need to consider when installing an EV Charger in your home.



This may go without saying but you should always confirm that the charger you plan on installing is certified and approved for use in Canada. Remember, this is still relatively new technology for the average consumer so you need to be sure you are purchasing a charger that is safe and reliable and meets all the Canadian electrical standards. 

The Electrical Safety Authority in Ontario helps to ensure all products sold in Ontario are certified for use in Ontario. The ESA website has a list of approved Canadian Certification marks.


What you need to know before installing an EV charger

I see a lot of EV Chargers being installed in homes as I'm driving around. According to recent studies they are expecting there to be over 10 million EVs on the road by 2030 which means the demand for at home charging will increase. If you're thinking of doing the same there are 3 things to keep in mind:👍 Hire a licensed electrical contractor for the job. They'll be able to assess your current panel needs and do the installation safely.👍 Check your EV Charger has the correct certification marks👍 Buy your EV charger from a trusted manufacturer#ElectricalSafetyMonth #EV #EVcharger

Posted by Mike Holmes on Thursday, May 30, 2024


PRO TIP: Discuss the requirements with your vehicle dealer but also consult with a LEC – Licensed Electrical Contractor.



How To Choose An EV Charger For Your Home



Most homes have electrical service of between 100 and 200 amps. Amperage measures the volume of electricity flowing through wires. This measurement can vary from 30 amps in very old homes with no upgrades to as much as 400 amps in a very large home with extensive electric systems.



My friends at ESA tell me that the most common hazard is when people try installing the electrical vehicle supply equipment (EVSE) onto an existing panel that can’t handle the extra draw. This could potentially cause overheating and an electrical fire, and you don’t want this to happen.



Your Main Electrical Panel Explained

Home Electrical Basics – How A Home Electrical System Works


Can I plug an electric vehicle into a regular outlet in my garage?

That depends. There are different levels of charging methods and infrastructures that support them.


Levels of EV Charging Stations Illustration

There are 3 Levels of EV Charging Stations.


Most EVs have a Level 1 charging cable for a standard 120-volt household outlet. This allows you to plug your EV into a regular household outlet in your garage, carport or parking space. However, the code requires a dedicated 20 amp 120-volt single receptacle for car chargers. If you need to get one installed, that requires a permit with ESA.  Again, it’s important to make sure your home can once again handle that extra load.




As a society, we love our gadgets, but I think we often take our electrical power draw for granted. When you’re installing an EV Charger it’s a good time to get your electrical panel inspected to ensure that your house can handle the draw. Adding an EV Charger will change the draw demands and you want to ensure everything is done safely and that you are not putting your family or yourself in danger.


why can't I learn how to install an EV Charger on YouTube

I know that the internet has become a great source of information but not everything can be learned and applied off of what you learned from YouTube. Electrical work is NEVER DIY especially when it comes to bigger projects like having an EV Charger installed in your home. Here's why.Always hire a licensed electrical contractor for any electrical work in your home. Check out the Eaton Certified Contractor Network to find one in your area at 👍#EVCharger #ElectricVehicle #EV #ElectricalSafety #Eaton_Partner

Posted by Mike Holmes on Thursday, May 16, 2024


When you hire a licensed electrical contractor, they will assess the capacity of your electrical system by performing a load calculation. It’s also beneficial for homeowners to provide historical data on their usage for the peak demand for the last 12 months.

You can obtain historical usage data from your utility bills. Also, some utility providers have this information available on a special portal on their website. Either way, your utility provider should be able to provide historical data for the past 12 months.

If you have an existing 100-amp service you will likely need to upgrade to a 200-amp service, especially if you are at near capacity with your existing electrical demands.


Eaton EV Charger being installed on Mike Holmes project by Licensed Electrical Contractor (LEC) Frank Cozzolino.

Eaton EV Charger being installed on our project by Licensed Electrical Contractor (LEC) Frank Cozzolino.


Your EV will likely be the largest load on your electrical panel. It takes a while to fully charge your vehicle so to be safe you need to have the right size panel. If not, overheating or arching can occur and potentially start a fire.


HOMEOWNER TIP: I recommend getting an electrical test and trouble shoot assessment in your home every four to five years. It doesn’t take long and it gives peace of mind knowing your home is safe and up to code. It also allows the LEC  to identify weak spots in your system and address them, and suggest the necessary upgrades so your home is efficient and safe. This is especially important for people with older homes (pre-1976) – please be safe and get your electrical panel inspected.



Hiring a Licensed Electrical Contractor in Ontario: When And How



In Ontario, the person who is doing the installation MUST get a permit from the ESA. I’m referring to the LEC or licensed electrical contractor. To ensure there is no confusion, you as the homeowner need to be aware that you MUST apply for a permit. The estimate for the work should also include the permit.


Remember, installing an EV charger is NOT a DIY job – never.





Filing for Electrical Permits In Ontario- Why It’s Important and What Happens When You Don’t

5 Electrical Permits Myths – Understanding Electrical Permits 



Ask your LEC for a copy of the Certificate of Acceptance after completing the work. The ESA Certificate of Acceptance guarantees they have reviewed the work and it meets the current electrical codes and standards. Plus, it’s great for insurance and resale purposes.



What this means is that, in Ontario, the electrical contractor is part of the Electrical Contractor Registration Agency of the Electrical Safety Authority. This seven-digit ECRA/ESA number should be easily visible on their business card, estimate, invoice and vehicle. This number means they are licensed to do electrical work in your home. It also shows they have WSIB and insurance.


You can call or go online to ESA’s Find A LEC tool to verify that they are licensed to work and get permits in Ontario. If they’re not listed there, they aren’t licensed!


3 things to know before installing an EV Charger

An EV charger is a big load on your system so it's important to make sure it's installed right and like anything electrical there are a few things you always have to make sure of. I spoke to Trevor Tremblay, Technical Advisor at Home and Safety: Electrical Safety Authority and here is what every homeowner should know 👍 #EVCharger #ElectricalSafety #EV #EVchargerinstall #Electrical #HomeRenovation

Posted by Sherry Holmes on Wednesday, February 14, 2024



How to Hire a Licensed Electrical Contractor For Your Electrical Work

Avoid Unlicensed Electrical Contractors


Always do your homework and consult with a LEC to ensure you and your family are safe. That way you have peace of mind knowing you can enjoy your electric vehicle for years to come.



19 Biggest Home Renovation Mistakes to Avoid 


Electrical Considerations When Renovating (The Process)

Electrical Fire Safety Tips – How To Prevent Electrical Fires At Home

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