A little preparation makes an EV charger installation faster, smoother, and often less expensive. Before the electrician arrives, there are a few decisions to make and things to check, from choosing the right charger to confirming your panel can handle it. Getting these sorted in advance helps the project go right the first time.
Here is how to prepare your home for an EV charger installation.
Know your vehicle’s charging needs
Start with your car. Your vehicle has an onboard charger that sets the maximum rate it can accept, and knowing that figure helps you choose a charger that matches, so you are not paying for speed your car cannot use. Also note your connector type, since chargers and adapters vary. This information guides the rest of your decisions.
Choose the charger and location
Next, decide on the charger and where it will go:
- Hardwired or plug-in. Plug-in chargers use a 240-volt outlet and are capped at 40 amps of charging, while hardwired chargers can go up to 48 amps for faster charging.
- Location. Pick a spot on the wall near where you park, within reach of your car’s charge port and cable length.
- Indoor or outdoor. If the charger will be outside or in an open carport, it needs to be an outdoor-rated unit.
The location also affects cost, since a longer wire run from the panel means more materials and labor.
Check your electrical panel
Your panel needs capacity for the new circuit. Before installation, it helps to know:
- Your service amperage, often found on the main breaker.
- Whether there are open breaker slots.
- The panel’s age and condition.
An EV charger is a significant load, so the electrician performs a load calculation to confirm your panel can handle it. If capacity is short, options include load management, which lets the charger back off when the home is drawing heavily, or a panel upgrade.
Clear access and plan the route
Make the work easy to reach:
- Clear the area where the charger will be mounted.
- Provide access to your electrical panel.
- Keep the path between the panel and the charger location accessible, since that is where the wire will run.
The more accessible these areas are, the more efficiently the electrician can work.
Handle the practical details
A few more items to consider:
- Wi-Fi. If you are getting a smart charger, make sure Wi-Fi reaches the install location.
- Permits. An EV charger installation requires a permit and inspection, which your electrician handles.
- Get an assessment. A licensed electrician evaluates your panel, location, and wire run and provides a quote before the work.
What the electrician will confirm
When the electrician assesses your home, they confirm the panel capacity with a load calculation, the best route and wire size for the run, the correct breaker, the mounting location, and the permit requirements. Sharing your vehicle’s charging specs and your preferred location up front helps them recommend the right setup.
To prepare your home for an EV charger installation, know your vehicle’s charging needs, choose a charger and location, check your panel’s capacity, clear access to the work areas, and plan for Wi-Fi and permits. A licensed electrician then confirms the panel capacity with a load calculation, sizes the circuit, and handles the permit and inspection. Good preparation makes for a smooth, correctly sized installation.
Stella Electric installs home EV chargers for homeowners across the Baltimore area and throughout Maryland, with flat-rate pricing and no overtime charges. We will assess your home and set up charging that fits your car and your panel. Financing is available on qualifying projects.