EV Charger Installation

Plugging an electric car into an ordinary 120 V outlet adds only a few kilometres of range per hour. A Level 2 charger on a 240 V circuit refills a typical daily drive overnight with time to spare. We handle EV charger installation in Kitchener, Waterloo and Cambridge for homeowners, condo boards and businesses, and we start every job by looking at what the electrical service can actually support.

Level 1 and Level 2

Level 1 is the cord that came with the car, plugged into a standard receptacle. It works for plug-in hybrids and short commutes. Level 2 runs on 240 V, typically on a 40 A to 60 A circuit, and is what most owners want once they have lived with an EV for a month. DC fast charging is a commercial installation on three-phase power and is a different conversation entirely.

Start with the load calculation

A charger can draw its full rating for hours, so the code treats it as a large continuous load. Before quoting, we calculate the home’s existing load under the Ontario Electrical Safety Code: floor area, heating and cooling, the range, the dryer, a hot tub if there is one. ESA guidance also allows a calculation based on the home’s demonstrated load in some situations. The result tells us one of three things: the charger fits as is, it fits with a lower amperage setting or load management, or the service genuinely needs to grow. If it is the last, our panel upgrade page explains what that involves.

Load management and energy management systems

This is where a lot of 100 A homes avoid a service upgrade. Rule 8-500 of the Ontario Electrical Safety Code permits an energy management system (ESA’s current bulletin calls it an EMS; older documents say EVEMS) to monitor loads and automatically control the charger. A typical home setup uses current sensors on the service conductors: when the dryer, range and air conditioner are all running, the system turns the charger down or pauses it, then lets it ramp back up.

Under Rule 8-106, when such a system monitors the service and controls the charger, the charger’s load doesn’t have to be counted in the calculated load. The code normally wants a charger on its own branch circuit, but Rule 86-300 allows it to share a circuit with other loads when an energy management system is installed. Some chargers have load management built in; others need a separate device. We tell you which approach suits the house.

Hardwired or plug-in

Many chargers can either be hardwired or plug into a 240 V receptacle. Hardwiring is generally more robust for a fixed garage charger, and on fixed-in-place equipment the charger’s maximum current can be set below its nameplate rating, provided it is labelled and the setting can’t be changed by the user. A receptacle makes it easier to take the charger with you when you move. Both have code requirements we follow. The guide on hardwired vs plug-in EV chargers compares them in detail.

Where the charger goes

Most owners want it close to the charge port, on a garage wall or a post at the side of the driveway. ESA expects a charger and any pedestal to be protected from vehicles, by keeping it at least a metre from where cars park, mounting it higher, or adding a curb or bollard. Outdoor units need to be rated for the weather, and we route the cable so it isn’t a trip hazard in the dark.

Condos and townhouses

In a condominium, the charger usually connects to the building’s electrical system rather than your suite panel, and the board has to approve it. Building capacity is the real limit: without load management, every new charger is added at its full demand. We work with property managers on a plan that can grow, often a shared energy management system that divides the available capacity across many parking stalls, with metering so each owner pays for their own power.

Workplace and commercial chargers

For offices, hotels, dealerships and retail lots, we install networked Level 2 stations from brands such as ChargePoint and FLO, with access control and billing handled through the network provider. On a commercial site, we look at the panel capacity, trenching or surface routes to the stalls, bollards and the parking layout before anything is ordered.

Install day

1. We confirm the charger model, location and amperage setting with you.
2. We file the ESA notification.
3. We run the circuit from the panel, mount the charger and set its maximum current to match the circuit.
4. We test it with your vehicle, if it is home, or with a tester if not.
5. ESA inspects, and you get the Certificate of Acceptance.

Most home installs take part of a day. To get a quote for yours, request a free quote and tell us the car, the charger if you have one, and a photo of your panel.