So You Want a Home EV Charger: Here's Exactly What to Do
From panel check to KUB rebate, every step a Knoxville homeowner needs, in order.
Getting a home EV charger installed in Knoxville takes about 10 steps, from evaluating your electrical panel to collecting the KUB rebate. Most homeowners can go from zero to charging in 2 to 3 weeks. The install itself is a half-day job. What takes time is scheduling a good electrician, the permit, and the inspection appointment. Here's the full sequence, with specifics on what KUB requires, where Knox County permit jurisdiction matters, and what older Knoxville homes typically run into.
Step 1: Decide Between Level 1 and Level 2
Level 1 is the cable that came with your car, plugged into a standard 120V outlet. It adds 3 to 5 miles of range per hour. For a short commute and the discipline to plug in every night, it's workable. For most people, it gets frustrating within the first month.
Level 2 uses a dedicated 240V circuit and adds 20 to 30 miles per hour. Most EVs are fully charged by morning regardless of when you plugged in. It's the right call for virtually every Knoxville homeowner with a garage.
Step 2: Check Your Electrical Panel
Find your main electrical panel (garage, basement, utility room, or exterior wall). Open the door and look at the main breaker at the top. The rating is the number there, either 100A or 200A, sometimes 150A.
200A service with open slots is usually fine. 100A panels are more common in older Knoxville neighborhoods, including parts of North Knoxville, South Knoxville, and homes near downtown built before the 1970s. If you're in that situation, you'll need a panel upgrade (typically $1,200 to $2,500) or a load management device that throttles the charger when other large appliances kick on. Your electrician assesses this on the quote visit, so you don't have to figure it out beforehand.
Step 3: Choose Your Charger
Four questions do most of the work:
- Tesla or non-Tesla? Teslas work with the Tesla Wall Connector or any J1772 charger. All other EVs need J1772.
- Hardwired or plug-in? A 14-50 outlet makes swapping chargers easier later. Hardwired is cleaner. Both are code-compliant.
- Smart (Wi-Fi) or basic? Smart chargers let you schedule overnight charging and track usage. Useful for TOU pricing, though not required for the KUB rebate.
- ENERGY STAR required? Not for KUB's rebate. This gives you a wider selection than homeowners in cities where it's mandatory.
ChargePoint, JuiceBox, Emporia, and Wallbox all have solid options in the $300 to $700 range. Verify the model qualifies under current KUB terms before purchasing.
Step 4: Check the KUB Rebate
KUB's rebate of up to $400 is one of the better utility incentives in East Tennessee. Install a qualifying Level 2 charger and KUB cuts you a check. No ENERGY STAR certification required, which is a genuinely nice break compared to most utilities. You have 60 days from installation (not purchase) to submit.
Mail your application to KUB at PO Box 59017, Knoxville, TN 37950. Include proof of purchase, installation details, and any forms KUB requires. Confirm the current program terms before you install since program details can change. See the full KUB rebate guide for the current requirements.
Step 5: Get Quotes from Licensed Electricians
Contact at least two electricians licensed through the Tennessee Department of Commerce and Insurance (TDCI). Ask each one: Are you TDCI licensed? Will you pull the permit, and is the fee included in your quote? What does the quote actually cover?
A solid quote covers labor, materials, permit fee, and conduit. For a typical attached garage in Knoxville, expect $300 to $600 in labor. Hillier lots in West Knoxville and Farragut with longer conduit runs cost a bit more. See what to ask before hiring an installer for the full list of questions and red flags.
Step 6: Schedule Installation
Plan for a half-day block. Attached garage installs typically take 2 to 4 hours. The electrician needs access to your panel and garage for the whole visit. Tell them in advance where you park and where you want the charger on the wall.
If your panel is in a finished basement or an interior closet far from the garage, that adds conduit work and time. Panel upgrades push the job to a full day. Knoxville homes on steeper lots can have longer conduit runs than you'd expect on flat terrain, so mention your home's layout when getting quotes.
Step 7: Your Electrician Pulls the Permit
Tennessee requires an electrical permit for any new 240V circuit. If your home is in the City of Knoxville, the permit comes from the city. If you're in unincorporated Knox County (parts of Farragut, Powell, Halls, and rural areas), it comes from Knox County. Your electrician knows which applies to your address and files before any work begins.
The permit typically costs $50 to $150. Most licensed contractors include it in their quoted price. Without it, you can lose the KUB rebate and create problems with homeowner's insurance and future home sales. There's no good reason to skip it.
Step 8: Pass the Electrical Inspection
After the install, your electrician schedules an inspection. The inspector checks that the circuit is properly sized, wiring meets the National Electrical Code, GFCI protection is in place, and the charger is mounted correctly. The inspection itself takes 15 to 30 minutes. Getting on the schedule typically takes 2 to 5 business days.
Your electrician handles all of the scheduling. You need to be home during the appointment window. If something needs a minor correction, the electrician fixes it and requests a re-inspection.
Step 9: Submit Your KUB Rebate
You have 60 days from the installation date to submit your KUB rebate application. The clock starts at installation, not purchase, which gives you more breathing room than utilities that start it at purchase. Don't wait, though. Gather your proof of purchase, installation date, and any required forms, and mail everything to KUB at PO Box 59017, Knoxville, TN 37950.
See the KUB rebate guide for a full walkthrough of what to include and how long processing typically takes.
Step 10: Enroll in KUB EV Rate Options
KUB is a TVA distributor, which means they have access to TVA's EV rate programs. Contact KUB directly to ask what time-of-use or EV-specific rate options are available for your account. Overnight charging during off-peak hours can lower your per-kWh cost meaningfully, especially if you're driving 30 or more miles a day.
The switch is usually simple to set up. Your smart charger's app lets you schedule overnight charging once you know which hours are off-peak. It takes about 10 minutes to configure.
Frequently Asked Questions
Typically 2 to 3 weeks. A few days for quotes, a week or more for scheduling, a day or two for the permit, then 2 to 5 days for inspection. The install is half a day. Total elapsed time from first call to first charge is usually 2 to 3 weeks.
No, and that's genuinely one of the better things about KUB's program. Most other utilities require ENERGY STAR certified chargers, which limits your options. KUB's rebate of up to $400 applies to qualifying Level 2 installations without that requirement. Confirm current program details before purchasing.
Your permit comes from Knox County instead of the City of Knoxville. Your electrician handles this automatically since they need to know the permit jurisdiction for every job. The KUB rebate applies regardless of whether you're in the city or county, as long as KUB is your utility.