Systems
EV Charger Rough-In in a New Custom Home: Panel, Conduit, and Load Management
Whether your electric car arrives on move-in day or in five years, the wiring for a Level 2 charger has to be planned at electrical rough-in. Here is how we handle the panel, the conduit, and load management so the charger is a clean install, not a wall-opening retrofit.
Buyers of a new custom home fall into two camps on electric vehicles. Some already drive one and want the charger working on move-in day. Others say they will get an EV "eventually" and figure they can deal with the charger then. Both groups need the same thing from the build: the wiring roughed in before the walls close.
That is because a Level 2 EV charger is not a small convenience outlet. It is one of the largest single electrical loads in the house, a dedicated 240-volt circuit in the same weight class as the electric range or the heat pump. You cannot treat it as an accessory you sort out later. It has to be in the electrical plan from the start.
The reward for planning it early is that the actual charger install becomes trivial, a unit on the wall and a connection, whenever the car shows up. Skip the planning and the same job means opening a finished garage. Here is how we handle it.
Level 1 and Level 2, and why homes want Level 2
There are two ways to charge an electric car at home.
Level 1 is a regular household plug, a standard 120-volt outlet. It works, but it charges very slowly, adding only a small amount of range per hour. For a car that sits in the driveway all night and only does short trips, it can be enough. For most families it is too slow to rely on.
Level 2 runs on a 240-volt circuit, the same kind of power an electric dryer or range uses. It charges several times faster than Level 1, enough to fully refill most cars overnight. This is what nearly everyone wants in a home, and it is what the local EV-ready bylaws are written around. It is also the reason planning matters, because a 240-volt dedicated circuit is a real load that has to be accounted for in the panel.
Some cities in the region already require new homes to be wired for Level 2 charging. Burnaby and New Westminster, for example, require an energized outlet at the parking space capable of supporting a Level 2 charger. We cover those bylaws and how they shape the panel in detail in our electrical planning guide. Even where the bylaw does not force it, planning for Level 2 is the sensible default now.
Panel capacity: the charger has to fit in the calculation
The first question is not "where does the charger go" but "does the panel have room for it." A Level 2 charger is a heavy, continuous load, and it lands on the same electrical service as everything else the home runs: the heat pump, the heat-pump water heater, and an induction range in an all-electric home.
Whether the service can carry all of that comes down to the load calculation, the math a licensed electrical contractor runs to the BC Electrical Code to confirm the service is big enough for everything the home will draw. We will not throw a number at you about how big the service needs to be, because the honest answer is that it depends on the specific equipment and the size of the house. What we will tell you is that the charger has to be in that calculation from the start, not added to it after the panel is set.
This is exactly why the EV charger belongs in the same design conversation as the rest of the electrical plan. If the calculation says the service needs to be larger, that is a decision to make before the foundation goes in, not a surprise after move-in when upsizing the service is a much bigger job.
Load management can save you a service upgrade
Here is the part that surprises people, and it is genuinely useful. You often do not need a bigger electrical service just to add an EV charger, because the charger's load can be managed.
An EV energy management system watches the total power the house is drawing and adjusts the charger to fit. When the heat pump, the oven, and everything else are pulling hard, the system slows or pauses the car charging. When the house quiets down, usually overnight, exactly when the car is parked and charging anyway, the charger gets the full flow. Because the charger is not assumed to run flat-out at the same time as every other big load, the load calculation can sometimes fit a charger onto a service that would otherwise have needed upsizing.
The recent BC Electrical Code recognizes these systems in its demand rules, which is why a smart panel with built-in load management is a real alternative to a bigger service on many builds. Whether load management or a larger service is right for your home is a per-house decision, and it is one that can only be made properly at design, because it changes what equipment sits in the electrical room and how the wiring is laid out.
The charger you install in five years should cost an afternoon, not a renovation. That only happens if the conduit and the panel space were planned the day the walls were open.
Icon Projects Team
Run the conduit now, even if the car is years away
This is the single cheapest piece of future-proofing on the whole electrical plan, and the one most often skipped.
If the charger is not going in on day one, we still run empty conduit from the panel out to the garage wall or the driveway parking spot while the walls are open. Pulling conduit through open, framed walls takes minutes. Doing it after the drywall, the insulation, and the finished garage are in means cutting into finished surfaces, patching, and repainting, and it costs many times more for the same result.
We also reserve the panel space. A dedicated breaker slot sits ready for the charger's circuit, so the future install is a matter of landing a wire, not reworking a full panel. And if the parking spot is not final, we run conduit to the likely locations, so wherever the charger ends up, there is already a path to it.
The goal is simple. When the electric car finally arrives, the electrician mounts the charger, connects it, pulls the permit, and it works. No demolition. This is the same "leave the path before you close the walls" thinking we apply to solar, to backup power, and to every system that might grow, which we lay out in our guide to backup power for a BC home.
The permit and the licensed work
Installing a Level 2 charger is regulated electrical work in BC. It adds a new dedicated 240-volt circuit, so it needs an electrical installation permit from Technical Safety BC. In a fully detached home, a qualifying homeowner may be able to pull a homeowner permit for the work. In many other situations, a licensed electrical contractor has to do it.
On our builds this is handled as part of the electrical scope, with the permit pulled and the work done by licensed trades. It is not a plug-and-play appliance you buy at a store and wire yourself. Treat it as the heavy electrical load it is, and confirm current requirements with Technical Safety BC, since the rules do change.
Plan for two cars, and for the future
One more thing we plan for, because two-car households are common: a second charger. Even if you only charge one car today, leaving panel space and a conduit path for a second stall means the day the second electric car arrives, you are not back to opening walls.
The through-line here is the same one that runs through all of our electrical planning. The EV future of a home is decided at the design table, with the panel schedule and the load calculation in front of you, not after the drywall is hung. The conduit, the panel space, the load management, each one is cheap as a line on a drawing and expensive as a renovation.
Frequently asked questions
Do I need to install the EV charger when I build, or just rough it in? You do not have to mount the charger on day one. What matters is roughing in the wiring path and planning the panel capacity while the walls are open. That means running empty conduit from the panel to the garage or driveway and reserving a spot in the panel for the charger's dedicated circuit. Icon Projects roughs that in on new builds so the actual charger is a wall-mount and a connection later, not a job that opens finished walls.
Does an EV charger need a bigger electrical service? Not always. A Level 2 charger is a large load, but modern load management can let the charger share capacity with the rest of the house, pausing or slowing the charge when the heat pump, oven, and other loads are running hard. That can fit a charger onto an existing service that would otherwise need upsizing. Whether it works for your home comes out of the load calculation a licensed electrical contractor runs. Icon Projects settles that at design, so the panel plan is right before anything is wired.
Do I need a permit to install a Level 2 EV charger in BC? Yes. Installing a Level 2 charger is regulated electrical work that requires an electrical installation permit from Technical Safety BC, because it adds a new dedicated 240-volt circuit. In a detached home a qualifying homeowner may be able to get a homeowner permit; in many other situations a licensed electrical contractor must do the work. Icon Projects handles the permit and the licensed work as part of the build, and always confirms current requirements with Technical Safety BC.
Can I run conduit for a future EV charger even if I am not sure where the car will park? Yes, and it is worth doing. If the parking spot is not final, we run conduit to the most likely locations while the walls are open, so a future charger has a wire path no matter where it lands. Pulling conduit through open framing is cheap. Doing it after the garage is finished costs many times more. Icon Projects maps the conduit paths at rough-in so the charger install stays simple whenever it happens.
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