DIY vs. Pro: Why You Shouldn’t Install Your Own EV Charger
So, you bought an electric vehicle; now you want the convenience of charging it at home… makes sense!
You’ve picked out your charger
You’ve watched a few installation videos
Maybe your partner says, “I can do that for free"
And a thought hits… “How hard can this really be?”
If you’re comfortable tackling projects around the house, it’s a fair question. But installing an EV charger, especially a Level 2 charger, is much different from hanging a TV or even replacing a light fixture.
Electrical Load Considerations
You’re adding a significant electrical load to your home. Which may require:
New wiring
A dedicated circuit
And a professional evaluation of your home’s electrical system
Not every EV charger installation is the same
Level 1 chargers typically plug into a standard household outlet and provide slower charging. For some drivers, that’s all they need, especially if you drive a hybrid or commute to a job where charging is available and free.
Level 2 chargers are a popular choice for homeowners because they can charge an EV much faster than Level 1 chargers. They also typically require a dedicated electrical circuit and more involved installation.
That may mean installing a new breaker, running wiring, evaluating your electrical panel, and determining the best location for the charger.
In other words, you’re not just installing a charger. You’re adding a new electrical load to your home.
Your Electrical Panel May Have a Say
One of the easiest mistakes to make is assuming an open spot in your electrical panel means you have room for an EV charger. Unfortunately, it doesn’t necessarily work that way. Before installing a Level 2 charger, your home’s electrical system needs to be evaluated to determine whether it can safely handle the additional demand.
A professional, like Green Wave, will consider:
Your existing electrical service and panel
Available electrical capacity
Your home’s current electrical loads
The charger’s power requirements
Existing wiring
The distance between the panel and charger
Some homes may be ready for a charger with little modification. Others may need additional electrical work or an upgrade. This is absolutely something you need to know before installation.
“But I Found a YouTube Video…”
We get it. There are plenty of videos showing homeowners installing EV chargers themselves. The problem? The video shows you how someone installed a charger in their home, not necessarily how yours should be installed.
Every home is different. Your panel, wiring, charger, garage, driveway, and electrical capacity may all be different. Knowing how to install something isn’t always the same as knowing whether that installation is right for your home.
And when you’re dealing with electricity, that distinction matters.
What Can Go Wrong?
This isn’t about scaring homeowners away from DIY projects. It’s about understanding what’s involved. An improperly installed EV charger can create electrical and performance problems, including:
Improperly sized wiring: Wiring needs to match the charger’s electrical requirements. The wrong size can create excessive heat and other issues.
Incorrect circuit protection: The charger needs appropriate circuit protection based on the equipment and installation.
Overloading your electrical system: Your home already has HVAC equipment, appliances, water heaters, and other major electrical loads. An EV charger adds another significant demand.
Improper connections or grounding: Electrical connections need to be installed correctly and securely.
Outdoor installation concerns: If your charger is outside, the installation needs to account for weather and moisture exposure.
The charger may be the part you see, but the electrical work behind it is what really matters.
Don’t Forget About Permits and Rebates
There’s another layer to EV charger installation that DIY videos don’t always mention: local requirements and available incentives. Depending on your location and installation, permitting or inspection may be required. It’s worth understanding those requirements before you begin.
For eligible Duke Energy Progress customers in North Carolina, the greater Wilmington area, and the greater Raleigh area, the Duke Energy EV Charger Prep Credit may provide up to $1,117 toward the installation of an EV charger or EV charger receptacle, subject to program requirements.
Green Wave is a registered Duke Energy contractor for the program and can help homeowners understand the process and whether the incentive may apply to their project.
Green Wave offers both hardwired and plug-in EV charging installations, helping homeowners choose the setup that makes sense for their home and vehicle.
The Real Cost of DIY Isn’t Always the Installation
DIY can save money. But electrical work is one of those areas where the cheapest option isn’t necessarily the least expensive in the long run. If something goes wrong, you could end up paying to have the installation corrected, replacing equipment, dealing with inspection issues, or spending hours troubleshooting a problem you didn’t expect.
And then there’s your time. You bought an EV because you wanted more convenience. Your home charger should give you exactly that.
There’s nothing wrong with being a DIY homeowner. Knowing when to call a professional is part of being a smart DIYer.
When you’re adding a high-powered electrical load to your home, professional installation can give you confidence that the job was done correctly. And that your charger is ready to do what you bought it for.
If you’re considering an EV charger for your home, talk to “Green Wave Dave” before you buy or install one. He can help you understand your options, evaluate what your home needs, and qualify you for the Duke Energy EV Charger Prep Credit.