Where this applies: the setups, circuits, connectors and quote checklist apply anywhere in Texas. Utilities, rebates and permit rules differ by city, so the local notes at the end cover Dallas-Fort Worth, Houston, Austin and San Antonio.
Want a first explanation of your panel's labels and questions to ask before you call anyone? Try the charger planning tool.
The three basic setups
A NEMA 14-50 outlet is a 240-volt outlet, the same plug an RV or an electric range uses. A Wall Connector is Tesla's charger that is wired permanently to the circuit (hardwired) instead of plugging in.
| Setup | What it adds (Tesla's figures) | Good for |
|---|---|---|
| Standard 120 V outlet with the Mobile Connector | Only a few miles of range per hour | Short commutes, a second car, a backup |
| 240 V NEMA 14-50 outlet with the Mobile Connector (32 A max) | About 30 mi/hr on Model 3 and Y, 27 on Model S, 23 on Model X | Most owners, and every 2026 Standard-trim Model 3 or Y |
| Hardwired Wall Connector, up to 48 A | Up to 44 mi/hr on Premium and Performance Model 3 and Y, 41 on Model S, 35 on Model X, 30 on Cybertruck | Two EVs, long commutes, the cleanest install |
A note on the 120 V figure: Tesla's own page gives different numbers in its text and its table, so we have not quoted one. Either way, it is slow.
32 A or 48 A: check your car first
Amps (A) measure how much current the charger delivers; more amps means faster charging, up to whatever the car can accept. This is where people overspend. On Tesla's current lineup (the 2026 Standard Model 3 RWD and Standard Model Y RWD and AWD, per Tesla's Wall Connector page as of October 2026), the car tops out at 32 A (7.7 kW) on home charging, about 30 miles of range per hour. A 48 A Wall Connector on a 60 A circuit cannot make a Standard-trim car charge faster. For those cars, a 14-50 outlet with the Mobile Connector does the same job.
On the same page, 2026 Premium and Performance Model 3 and Model Y, Model S, Model X and Cybertruck can use the full 48 A. Limits differ on older cars and other trims, so check the charging screen or Tesla's page for your model year. Whether that is worth it depends on how much you drive. Even at 32 A, eight hours overnight adds roughly 240 miles of range on a Model 3 or Y. A faster circuit earns its keep when two cars share one charger, when you regularly drive long days, or with a heavier car like the Model X that adds range more slowly. Our Model Y guide explains how to tell which trim you have.
A 48 A Wall Connector on a 60 A circuit cannot make a Standard-trim car charge faster.
NACS (J3400) or J1772?
North America has two Level 2 plugs (Level 2 simply means 240-volt home or public charging). NACS is the connector Tesla designed; SAE published it as Recommended Practice J3400 in September 2024, so you will see both names for the same plug. J1772 is the older plug found on most non-Tesla EVs built before the industry began moving to NACS. Adapters work in both directions.
- All-Tesla household, or a new car with a NACS port: a NACS wall connector is the simple choice.
- A Tesla plus an older J1772 car: choose a setup that serves both without juggling adapters every day, or plan on keeping the adapter with the charger. Confirm with the charger maker that the unit you pick supports both cars.
- Thinking about the next car: if a non-Tesla EV is likely, check which port that model uses before you choose the wall unit.
Breaker basics, for planning only
EV charging counts as a continuous load: it pulls its full current for hours at a time, unlike a toaster or hair dryer. Because of that, the breaker has to be sized above what the charger actually draws. Tesla's published pairings show the pattern:
| Breaker | Charging current |
|---|---|
| 60 A | 48 A (about 11.5 kW at 240 V) |
| 50 A | 40 A |
| 40 A | 32 A |
Whether your panel has room for any of these depends on a load calculation, and only a licensed electrician should do it. Older homes with 100 to 125 A service, electric HVAC and an electric dryer may need load management or a service upgrade. Load management means the charger slows down automatically when the rest of the house is drawing a lot of power, or lets two chargers share one circuit, which can sometimes avoid a costly panel upgrade. Tesla's Universal Wall Connector, for example, is adjustable from 12 to 48 A.
Hardwired or plug-in?
A hardwired Wall Connector avoids the wear and heat problems that can come from repeatedly plugging into a 240 V receptacle, and it allows the highest current. A NEMA 14-50 outlet is flexible, and the Mobile Connector can travel with you. Note where the limit comes from: Tesla's Mobile Connector with its NEMA 14-50 adapter charges at 32 A at most. That is the Mobile Connector's limit, not the outlet's. Either way, the circuit should be installed and inspected properly.
Smart features worth having
- Wi-Fi for firmware updates, usage history and remote control. Tesla's current Wall Connectors use 2.4 GHz Wi-Fi only, so check the signal in your garage.
- Scheduling, from the car or the charger, so charging happens inside your electricity plan's cheapest hours, or outside your utility's peak hours.
- Power sharing or load management if you have two EVs or a tight panel.
- Outdoor rating (for example NEMA 3R, a weather-resistance rating for enclosures) for an exterior wall or carport. Tesla's Universal Wall Connector is rated NEMA 3R and has a 24 ft cable.
Permits
Most Texas cities expect an electrical permit for a new 240 V circuit, and a licensed electrician normally pulls it. Texas law does let owners do some work on a home they own and live in, but only where city ordinance does not regulate it, and the big cities do. The rules for Dallas, Frisco, Houston, Austin and San Antonio are in the local notes below. Elsewhere, check your city's building inspections page or ask your electrician.
What affects the install cost
- Spare capacity in your panel, and whether you need load management or a service upgrade.
- Distance from the panel to where you park.
- Garage versus outdoor installation.
- City permit and inspection requirements.
- Incentives: the federal 30C charger credit ended for equipment placed in service after June 30, 2026. Some utilities still pay something; see the local notes.
Comparing installer quotes
Quotes for the same job can look very different because they include different things. Ask each electrician to spell out:
- Equipment: which charger or outlet, and whether you or the installer supplies it.
- Circuit and wiring run: breaker size, the route and length from the panel to the parking spot, and whether conduit or an outdoor run is involved.
- Load management: whether the load calculation calls for it, and whether it is included.
- Permit and inspection: who pulls the permit, who schedules the inspection, and whether the fees are in the price.
- Wall and drywall restoration: whether patching and painting after the wiring run are included.
- Warranty: how long the workmanship is covered, separate from the charger maker's warranty.
- Exclusions: what is not covered, such as a panel or service upgrade, trenching, or utility work.
Match the electricity plan, or the utility's program
In much of Texas you choose a retail electricity provider, and some offer EV plans with discounted or free overnight hours. In other places a city-owned utility or an electric co-op sells your power, and there is no plan to shop for; instead, some of them pay bill credits for charging outside peak hours. Go by the utility named on your bill, not your ZIP code. Compare retail plans on PowerToChoose, the Public Utility Commission of Texas's official site. Texas EV fees covers the registration side of owning an EV.
Local notes
Dallas–Fort Worth
- Power. Most of DFW can choose a retail provider; Oncor owns the wires and handles outages but does not sell you power. Some general free-nights plans exclude homes with EVs, so read the fine print. Customers of Denton Municipal Electric, Garland Power & Light or a co-op such as CoServ cannot choose a provider. Our DFW electricity plans guide covers how to compare.
- Rebates. We found no residential charger rebate from Oncor, Garland Power & Light or CoServ. Denton's $1,000 city rebate is for the vehicle, not the charger.
- Dallas permits. Electrical permits go through Development Services (320 E Jefferson Blvd, 214-948-4480). The city's checklist says a homeowner may pay for the permit but may not physically do electrical work on a homesteaded residence without passing a homeowner's exam.
- Frisco permits. Residential EV charging station permits are self-service with no plan submittal. The manufacturer's installation instructions must be on site, and a licensed electrician must be present at the inspection. Development Services: 972-292-5300.
- Plano, Fort Worth and other cities. We did not find EV-specific rules on their official sites. Check the city's building inspections page or ask your electrician.
More in the Dallas–Fort Worth guide.
Houston
- Power. CenterPoint Energy delivers power across most of the metro and you choose a retail provider; in parts of Galveston and Brazoria counties the wires company is Texas-New Mexico Power, which also works with retail providers. Entergy Texas customers, including parts of The Woodlands, cannot choose.
- Rebates. We found no EV or home-charger rebate from CenterPoint or the City of Houston. Entergy Texas runs a managed-charging program, but its own FAQ says the program is fully subscribed and has a waitlist.
- Permits. Inside the City of Houston, an EV charging outlet needs an electrical permit. The city issues these permits only to registered master electricians, and an inspection is required. Suburbs set their own rules; Sugar Land, for example, says electrical work must be done by a licensed electrician.
More in the Houston guide.
Austin
- Power. Austin Energy is owned by the city and both delivers and sells your power, so there is no plan to shop for. Outside its area, Pedernales Electric Cooperative offers an optional time-of-use rate, Round Rock is in Oncor's area with retail choice, and Georgetown runs its own city utility.
- Austin Energy rebate. The Home EV Charger Rebate pays up to $500 or 50% of the price of a qualifying Level 2 station, and you must enroll in Power Partner EV, which lets Austin Energy pause or slow charging during summer peak events (you can override). Power Partner EV pays a $50 bill credit when you enroll and $25 after a year, and Teslas can enroll through the car itself. The rebate's charger list names ChargePoint and Emporia models but not the Tesla Wall Connector, so confirm with Austin Energy before you count on it for a Wall Connector.
- Permits. In the City of Austin, a licensed electrical contractor registered with the city requests the trade permit, unless you qualify for a homeowner's Homestead Permit and do the work yourself. Round Rock issues electrical trade permits through its online portal.
More in the Austin guide.
San Antonio
- Power. CPS Energy is owned by the City of San Antonio and has not joined the retail market, so there is no plan to shop for. The standard residential rate is the same at every hour, and from June through September CPS adds a Peak Capacity Charge to every kWh above 600 in a month.
- CPS programs. EV Smart Rewards pays a $30 enrollment credit plus $10 a month for letting CPS's partner manage your charging, and lists Tesla (all models, all years) as eligible. EV Off-Peak Rewards pays $30 plus $5 a month. CPS lists no rebate for buying a home charger. Its peak window is weekdays 4 p.m. to 10 p.m., so schedule charging after that.
- Suburbs. GVEC (Schertz, Cibolo, Seguin area) pays a home charger installation rebate of $600 or half the installation cost, whichever is less, for a new Level 2 unit installed by a licensed electrician.
- Permits. In the City of San Antonio, a licensed electrician registered with the city pulls the electrical permit through the BuildSA portal, and homeowners cannot do new electrical work themselves. Expect a regular permit and a city inspection for a Level 2 circuit.
More in the San Antonio guide.
Find charger installers in your city
Our free directory lists charger installers, each checked against the business's own website: Dallas–Fort Worth, Houston, Austin and San Antonio.
Sources
- Tesla, Wall Connector (48 A on 60 A; 32 A limits by trim) (checked October 2026)
- Tesla, Mobile Connector charge rates (checked October 2026)
- Tesla, Universal Wall Connector specifications (checked October 2026)
- Tesla, breaker-to-output table (Mexico-region support page) (checked October 2026)
- Joint Office of Energy and Transportation, SAE J3400 published (checked October 2026)
- Texas Occupations Code, Sec. 1305.003 (checked October 2026)
- IRS, alternative fuel vehicle refueling property credit (30C) (checked October 2026)
- PowerToChoose (Public Utility Commission of Texas) (checked October 2026)
- DFW: City of Dallas, electrical permit application checklist (5/10/2024), City of Frisco, EV charging station permit requirements (updated 11/3/2025), City of Denton, sustainability incentives, CoServ, electric vehicles (checked October 2026)
- Houston: CenterPoint Energy electric utility FAQ, The Woodlands Township, utilities, Entergy Texas EV program FAQ, Houston Permitting Center, EV charging outlets permit, City of Sugar Land, permit FAQ (checked October 2026)
- Austin: Austin Energy, Home EV Charger Rebate, Austin Energy, Power Partner EV, Pedernales Electric Cooperative, time-of-use rate, City of Round Rock, utility billing, City of Austin, stand-alone trade permits, City of Austin, homeowner's permit (checked October 2026)
- San Antonio: CPS Energy, EV Charging Solutions, CPS Energy, Residential Electric Rate RE, GVEC, EV Charging Station Rebate, City of San Antonio DSD, residential permits, City of San Antonio DSD, Information Bulletin 121b (checked October 2026)
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