Key takeaways:
- EV charger installation involves wiring checks, permits, and sometimes electrical panel upgrades.
- Most Middle Tennessee homes need to add a dedicated 240V circuit for fast and safe charging.
- It’s also important to follow local permit rules to protect your EV and keep your home up to code.
- Airstream makes the EV charger installation process simple with high-quality work from trusted experts.
Electric vehicles keep growing in popularity across Middle Tennessee, and many homeowners want the convenience of charging their car at home. It’s possible with a Level 2 charger, but getting your property ready for this upgrade takes some planning. Here’s what you need to know about electrical upgrades for EV charging, permits, and more.
What You Need Before Installing an EV Charger
Many houses in Middle Tennessee were built before EVs hit the market, so preparing for EV charger installation often involves upgrading the electrical system.
Dedicated 240V Circuit and Wiring
Level 2 chargers are the most convenient way to charge at home. These chargers either connect to a dedicated 240V outlet or are hardwired into your panel via a 240V circuit.
In most cases, a licensed electrician will need to install a 240V outlet or circuit since few homes already have them.
Here’s a checklist for your wiring needs:
- Pick a spot close to your parked car, making sure the charging cable will reach comfortably.
- If you choose a portable Level 2 charger, have an electrician install a NEMA 14-50 outlet. Other outlets aren’t safe to use.
- For hardwired installations, your electrician will install a new circuit running from the charging location to the panel.
- Additional upgrades might be needed, such as replacing old wiring with insulation, corroded copper, or aluminum wires, which are still common in older Middle Tennessee homes.
- You might also need new breakers to protect your EV charger, as well as an emergency disconnect switch if you opt for one of the faster Level 2 chargers (above 60 amps).
Panel Capacity and Surge Protection
Charging an EV requires your electrical panel to draw more power from the grid. Older electrical panels can struggle with this, especially if you plan on charging your EV while other appliances are running.
If you have a 100-amp panel, your electrician can add a subpanel or swap your main panel for a larger one. Installing surge protection also makes sense when adding sensitive equipment like EV chargers. Power surges, whether from lightning or grid fluctuations, put expensive electronics at risk. This upgrade is especially important in Middle Tennessee, where summer storms can expose your home to lightning strikes.
Electrical Permit and Code Requirements in Tennessee
Adding an EV charger to your home is an electrical upgrade, which means you’ll need a permit from your local building department and an inspection after your electrician installs the charger. It ensures the project is up to code and helps keep your home safe.
Local Rules for Electrical Installs
Tennessee still uses the 2017 version of the National Electrical Code (NEC). However, cities and townships can amend the code, which means the rules to follow can vary depending on where you live.
It’s also a good idea to plan for an EV charger installation that exceeds the 2017 NEC standard to add safety features and anticipate Tennessee adopting a more recent version of the NEC in the future.
Before you install an EV charger, you’ll have to submit detailed plans to your building department and get a permit. Your plans should describe the charger location, the amp draw when charging, any panel and wiring upgrades, and surge protection.
Key permit steps in Middle Tennessee:
- Apply for the right local permit before any major electrical work.
- Schedule inspections for both rough-in wiring and final EV charger installation if your building department requires it.
- Follow all codes for ampacity, safe circuit design, and equipment approval. This will protect cars, homes, and family members.
If your charger installation isn’t up to code, you could face multiple issues. It’s a major safety risk, with badly installed chargers potentially sparking electrical fires. You’ll also have to worry about failing an electrical inspection, which can lead to a fine and costly reworks.
How Airstream Handles the Full EV Charger Installation
Choosing a local provider with experience in Middle Tennessee makes the process easy from start to finish. Airstream guides homeowners through every step of installation, handling upgrades, permits, inspections, and charger setup.
Pre-install Inspection
Airstream offers pre-install inspections for homes in Middle Tennessee. First, a licensed electrician checks your panel’s available capacity, inspects the wiring, and determines the best spot for your charger. If your panel capacity is a concern, we’ll discuss upgrades. We’ll also discuss your EV charging needs and help you choose a charger adapted to them.
Electrical Upgrades and EV Charger Installation
The next step is to get your home ready to power an EV charger. This usually includes installing a dedicated 240V circuit and potentially replacing your old panel.
Once this infrastructure is in place, our team will install your Level 2 charger, configure it, and do a few tests.
You can expect a clean installation with no exposed wires, tidy conduit run, and easy access for plugging in your car. Most installations finish within a single day for standard panels, while upgrades may take a bit longer
Ready to Power Up Your EV with Airstream?
Thinking about adding an EV charger to your Middle Tennessee home? We guide you through every step of this process, from inspection to permit to final setup. Airstream’s licensed electricians treat your property like their own and make installation stress-free.
Please fill out our online form to learn more about EV charger installation and to find out what electrical upgrades your home might need.
FAQ
What kind of wiring do I need for a home EV charger?
Level 2 chargers need a dedicated 240V circuit. The wiring for this circuit should match the charger’s amperage, which can range from 16 to 80 amps. An electrician will check if your existing wiring is safe or if upgrades are needed.
Do I need to upgrade my electrical panel for EV charging?
Some homes in Middle Tennessee, especially those with older or lower-capacity panels, need a panel upgrade before installing a charger. Your installer will let you know if yours meets the requirements.
Are permits needed for EV charger installation?
Yes, local permits and inspections are important for keeping installations safe and up to code. Licensed electricians handle these steps and ensure your installation follows local rules.
