EV Charger Installation in Cary, NC: Permit, Utility & Panel Guide
What it takes to add a home charger in Cary: who issues the permit, what your utility offers, which code edition applies, and what the age of Cary's homes says about panel size. Each local fact links to the page it came from.
How much does EV charger installation cost in Cary, NC?
$500 to $1,500 when the panel has room for one more 240V circuit. A full service upgrade, when the service is too small, typically adds $2,000 to $4,500.
It depends on the house. Cary's homes are a mix (median year built 1999; 12% before 1980, 49% since 2000), so there is no safe assumption either way. Read the main breaker size, then run a load calculation. Run the load calculation for $49.99 before you pay for the bigger job.
NEC References:
- NEC Article 220
- NEC 625.40
- NEC 625.41
Last updated: October 10, 2026
Cary: the local facts
- Electric utility
- Duke Energy delivers the power in Cary; the Town does not sell electricity.source
- Permit
- The Town of Cary issues the electrical permit for a home charger and publishes an EV charger permit guide with the online application.source
- Electrical code
- North Carolina still enforces the 2020 NEC with state amendments; the 2023 edition is on indefinite delay. One- and two-family homes follow the electrical chapters of the NC Residential Code.source
- Who can do the work
- North Carolina requires a state electrical contractor license to do or offer electrical work. An owner may do their own work on a home they live in and will not rent or sell within a year.source
- EVs registered
- 36,673 plug-in vehicles in Wake County in June 2026 (30,151 battery-electric, 6,522 plug-in hybrid), from NCDOT's monthly county registration data.source
- Home-charging programs
Duke Energy NC Charger Prep Credit: Launched in 2022 as a one-time credit of up to $1,133 toward the wiring for a home charger. We could not confirm the current amount on Duke's site.source
Duke Energy Charger Solution: Rent a Level 2 charger from Duke on a 3-year residential term, announced in January 2024 at about $14 a month.source
Programs open and close. Confirm on the program page before you count on one.
How old the homes are
- Median year built
- 1999
- Built before 1980
- 12%
- Built 2000 or later
- 49%
It is a mixed housing stock, so there is no safe assumption: an older home may have a 100A service and a newer one usually has 150A to 200A. The label on the main breaker settles it.
Cary, NC, all 73,795 housing units; 67% owner-occupied. Source: U.S. Census Bureau, ACS 2024 5-year estimates (tables B25034, B25035, B25003).
Local facts checked October 10, 2026.
What the job costs, by what your panel needs
The charger circuit is the same job everywhere. What changes the price is whether your panel and service can carry it. These are the four outcomes, from the most common to the least:
| If the load calculation shows | The job | Typical cost |
|---|---|---|
| Room on the panel and the service | Circuit addition | $500 to $1,500 |
| Service has room, panel has no spaces | Sub-panel | $800 to $2,000 |
| Panel is worn out or unsafe, service is fine | Panel replacement | $1,500 to $4,000 |
| Service is too small for the added load | Full service upgrade | typically $2,000 to $4,500 |
Which row you land in is a load calculation, not a guess from the house's age. NEC Article 220 adds up what the home can draw, including the new charger circuit, and the total is compared with the service rating. NEC 625.40 requires the charger to have its own branch circuit, and 625.41 sizes its breaker at 125% of the charger's maximum load, which is why a 48A charger lands on a 60A breaker.
Can your panel handle an EV charger?
Find out in minutes with a professional NEC Article 220 load calculation. J.D. Power found only 28% of EV owners needed one — even though 65% were told they did (ESFI). Skip the $300 electrician visit.
Do I need a permit for an EV charger in Cary, NC?
The Town of Cary issues the electrical permit for a home charger and publishes an EV charger permit guide with the online application.
Source: Checked October 10, 2026
Jason Walls
Electrician · EVITP Certified · KY Electrical License EE642643
NEC Article 220 Specialist · ChargeRight Founder
"I built ChargeRight because I was tired of seeing homeowners pay $2,000 to $4,500 for panel upgrades that a $49.99 load calculation would have shown they didn't need. The math doesn't lie. Every homeowner deserves to see it before they write a check."
Frequently asked questions
How much does EV charger installation cost in Cary, NC?
It depends on what the panel needs. A circuit addition ($500 to $1,500) covers a home whose panel has room. If it does not: a sub-panel ($800 to $2,000), a panel replacement ($1,500 to $4,000), or a full service upgrade (typically $2,000 to $4,500). A $49.99 ChargeRight assessment runs the NEC Article 220 load calculation that tells you which one your home needs.
Will my Cary home need a panel upgrade for an EV charger?
It depends on the house. Cary's homes are a mix (median year built 1999; 12% before 1980, 49% since 2000), so there is no safe assumption either way. Read the main breaker size, then run a load calculation.
Do I need a permit for an EV charger in Cary, NC?
The Town of Cary issues the electrical permit for a home charger and publishes an EV charger permit guide with the online application.
Are there EV charger rebates in Cary, NC?
Duke Energy NC Charger Prep Credit: Launched in 2022 as a one-time credit of up to $1,133 toward the wiring for a home charger. We could not confirm the current amount on Duke's site. Duke Energy Charger Solution: Rent a Level 2 charger from Duke on a 3-year residential term, announced in January 2024 at about $14 a month. Programs open and close, so confirm on the program page before you count on one.
Who can install an EV charger in Cary, NC?
North Carolina requires a state electrical contractor license to do or offer electrical work. An owner may do their own work on a home they live in and will not rent or sell within a year.
How many EVs are registered in Cary?
36,673 plug-in vehicles in Wake County in June 2026 (30,151 battery-electric, 6,522 plug-in hybrid), from NCDOT's monthly county registration data.