Home EV Charger Installation: What to Expect and How to Prepare
Charging an electric vehicle at home is the single biggest convenience of owning one — you wake up to a full battery every morning. But a home charger is a real electrical project, not a plug-in accessory. Knowing what to expect makes the install fast and keeps the cost predictable.
Level 1 vs. Level 2
Every EV comes with a Level 1 cord that plugs into a standard 120-volt outlet. It works, but it only adds three to five miles of range per hour — fine for a plug-in hybrid, frustrating for a full EV. A Level 2 charger runs on a 240-volt circuit and adds 20 to 40 miles of range per hour, so an overnight charge covers nearly any commute. For most Utah drivers, Level 2 is the right answer.
What the installation involves
A typical Level 2 install includes:
- A dedicated 240-volt circuit — usually 40 or 50 amps — run from your electrical panel to the charger location.
- A new breaker in the panel sized for the charger.
- Either a hardwired charger or a NEMA 14-50 outlet, depending on the unit and your preference.
- A permit and inspection, which most Utah cities require for a new EV circuit.
The biggest cost variable is the distance from your panel to where the car parks. A charger on the wall right behind the panel is a short, inexpensive run. A detached garage or a panel on the opposite side of the house means more wire and labor.
Does your panel have room?
Before anything else, an electrician will check whether your service can handle the new load. A modern 200-amp panel usually has plenty of headroom. Older 100-amp panels — common in homes built before the 1990s — may be close to full once you add a 40-amp charger on top of an electric range, dryer, and AC. If capacity is tight, the options are a load-management device that shares power intelligently, or a panel or service upgrade.
Plan around your car's arrival
The smartest move is to have the charger installed before your EV is delivered, or right after you order it. That way the circuit is tested and inspected, and you charge from day one. It also gives you time to handle a panel upgrade if one turns out to be needed, instead of scrambling.
Get it scoped early
Whiting Electric installs Level 2 chargers across Park City, Heber, and the Wasatch Front — checking panel capacity, running the dedicated circuit, and handling the permit and inspection. If you've ordered an EV or are thinking about one, reach out early so your charger is ready before the car is.