How to Prepare Your Home’s Electrical System for an EV Charger

Not Just Some Box On The Wall

Do you plan to buy an electric vehicle, or do you need an EV charger installed? Well, before you do, you must prepare your home first if you want to charge and use your vehicle. This blog will help you understand the why and how of getting your electrical system ready for a home EV charger.

Why Does Preparing Your Home Electrical System Matter?

EV chargers use so much more power than any regular household appliance. If your home doesn’t have the right setup, your vehicle won’t charge properly, and your home will experience electrical hazards. By preparing your home electrical system, you enjoy:

• Reliable EV charging
• Better electrical protection for your home and vehicle
• Code compliance with local electrical codes.

Think of preparing your home’s system as setting a strong foundation before installing a new electrical upgrade.

What Are an EV Charger’s Power Requirements?

Before you start, you must know what type of electric vehicle charger you’re installing. There are two main types of home EV chargers: Level 1 and Level 2. There is a Level 3, but it isn’t suitable for home charging.

Level 1

Level 1 EV chargers use standard 120-volt outlets when charging EVs. While a level 1 charger doesn’t need electrical upgrades, the charging speed can be quite slow.

Level 2

Level 2 EV chargers are the more popular choice for home chargers because they charge EVs much faster. However, level 2 chargers need 240 volts, meaning your home will need a few upgrades first.

Don't Forget About Permits

Get the correct permits before you start your project because code compliance matters. EV charger installations must comply with the NEC (National Electrical Code) and local regulations to avoid any problems during future inspections, insurance claims, or house sales.

Always Call the Professionals

Of course, upgrading your home and installing an EV charger is NOT something you can do yourself. Always call your local electrician to handle the project to avoid damaging your home’s electrical system. With an electrician’s help, they will:

• Check your electrical system
• Recommend upgrades if necessary
• Install your EV charger properly
• Ensure fast, safe, and dependable charging

Steps to Preparing Your Electrical System

Now that you know about the types of EV chargers, have the proper permits on hand, and have called a licensed electrician, it’s time to discuss the steps to preparing your home’s system.

Step 1. Check Your Electrical Panel

As the control center for your home’s power, your electrical panel will need to be larger or more up-to-date to handle an EV charger’s requirements. If you don’t, you either won’t be able to charge your electric vehicle, or your home will struggle to meet your daily needs. What you’ll need:

• A 200-amp panel
• Space for a new breaker

Step 2. Do An Electrical Load Calculation

With an electrical load calculation, you can measure how much electricity your home uses and how much it can handle. DO NOT SKIP THIS STEP, because EV chargers need a steady, high amount of power to function properly. An electrician will consider the following during a calculation:

• Existing appliances
• Heating systems
• Cooling systems
• Lighting
• Your future electrical plans

Step 3. Install a Dedicated EV Charger Circuit

EV chargers need a dedicated circuit to ensure stable charging, code compliance, and safety. If the charger doesn’t have its own circuit and shares a circuit with other appliances, it can cause overheating, frequent breaker trips, and other electrical hazards. When installing this circuit, an electrician will:

• Install the correct breaker size
• Use heavy-duty wiring that is suitable for continuous power loads
• Add proper grounding

Step 4. Choose Where to Install Your EV Charger

While your home’s electrical setup will affect the placement, where you decide to place your electric vehicle charger still matters. The closer you place your charger to your electrical panel, the simpler the installation will be. Most homeowners install their charger in their garage, carport, or driveway.

Step 5. Upgrade Wiring, Outlets, and Grounding

If you’re living in a home built a decade or so ago, you will have to upgrade everything: swap out undersized conductors, remove aged wiring, improve the grounding, install some GFCI outlets, and add surge protection. If you don’t get these upgrades, your EV charging equipment will perform poorly.

Future-Proofing: Other Electrical Upgrades to Consider

If you are considering a second EV charger, it would be best to plan for it now, since updating your panel and wiring once will be far more cost-effective than doing it twice. Here are some electrical upgrades for you to consider:

• Smart home energy monitoring
• Whole-house surge protection (if you don’t already have it)
• Sub-panels (if your home still has the capacity for it)
• Additional outlets

Final Thoughts

Preparing and upgrading your home’s electrical system for EV chargers will give you many years of stress-free charging. Whether you upgrade your electrical panel, add a new breaker, or do a whole rewire, every part matters.

Contact Texas Strong Electric

If you want to install an EV charger or want to know if your home can handle one, start by contacting Texas Strong Electric.