How Long Does EV Charger Installation Take?
The installation itself is half a day. The permit and inspection process adds several days around it. Here's the complete Huntsville timeline, including when you'll start saving with TVA's off-peak rate.
For most Huntsville homeowners with an attached garage, a Level 2 EV charger installation is a half-day appointment. The electrician handles everything in one visit — panel check, circuit, charger mount, test. The permit happens a day or two before, and the inspection follows a few days after. Plan for the whole process to take about a week or two from scheduling to done.
Full Timeline Overview
| Step | Typical Duration | Notes |
|---|---|---|
| Get quotes and schedule | 2 to 5 days | Good Huntsville electricians book a few days out |
| Permit pulled by electrician | 1 to 3 business days | City of Huntsville Inspection Department |
| Actual installation | 2 to 4 hours | Full day for panel upgrades or detached garages |
| Electrical inspection | 2 to 5 days to schedule, 30 min to complete | Electrician handles scheduling |
| TVA TOU enrollment | 1 billing cycle to take effect | Contact Huntsville Utilities at hsvutil.org |
What Extends the Installation Time
Panel upgrade
If your home has a 100-amp panel that's already loaded — more common in older Huntsville homes, some parts of south Huntsville, and older Decatur neighborhoods — adding a 50-amp EV circuit may require a panel upgrade first. That adds 3 to 5 hours of work and may require Huntsville Utilities to disconnect service at the meter, sometimes adding a day to the schedule. See the panel upgrade guide.
Detached garage
Properties in the more rural parts of north Alabama — Hazel Green, Toney, Meridianville, and some properties in Madison and Athens — sometimes have detached garages or outbuildings where homeowners want EV charging. Underground conduit runs take more time and cost more than a simple attached garage job. Budget for a full day.
Long conduit run
If your panel is at the back of the house and your garage is at the front — or if the panel is in a finished space that limits access — the electrician has more routing to do. Each extra 20 feet of conduit adds labor and materials.
When to Enroll in the TVA TOU Rate
Don't wait on this. As soon as your charger is installed, contact Huntsville Utilities at hsvutil.org to enroll in TVA's time-of-use rate plan. The rate takes about one billing cycle to take effect, but there's no reason to delay enrolling.
The off-peak rate runs as low as $0.07/kWh — roughly half the national average electricity price. For a full charge on a 75 kWh battery, that's about $5.25 instead of $12. Do this the same week as your installation.
The on-peak window to avoid: 3–7 PM on weekdays in summer. Set your smart charger to charge after 9 PM and you're safely in the off-peak window every night.
Frequently Asked Questions
Yes, plan to be home for the full half-day block. The electrician needs access to your panel and garage, and may have questions about placement or your setup. You don't need to supervise constantly, but be available.
Yes. You can use the charger as soon as installation is complete — you don't need to wait for the inspection. The inspection verifies the work meets Alabama electrical code but doesn't determine when you can use the charger.
Some Huntsville electricians can get same-day permits for straightforward EV installs, but it's not guaranteed. Most prefer to pull the permit a day or two in advance. Ask when you get quotes.
A combined panel upgrade and EV charger installation typically takes a full day. If Huntsville Utilities needs to disconnect service at the meter, it may require a separate coordination. Plan for the full project to span one or two workdays total.