Some Memphis homes need a panel upgrade before adding a Level 2 EV charger, but many don’t. The number printed on the panel door doesn’t settle the question. What matters is whether the home’s existing electrical use leaves enough available capacity for a new high-demand circuit.
A 200-amp panel is often a good starting point, while a 60-amp service usually needs an upgrade for safe home charging. Still, a 200-amp service powering electric heat, air conditioning, a range, a dryer, pool equipment, or other large loads could be close to its limit. Drawing on nearly two decades of electrical industry experience, we use an on-site assessment and load calculation to identify the right approach.
Panel Amperage Doesn’t Equal Available Capacity
A home charging station doesn’t automatically require a panel upgrade. Likewise, a larger panel doesn’t necessarily mean the home has room for charging. Its amperage rating describes overall service capacity, not how much capacity the household is already using.
A Level 2 charger uses a dedicated 240-volt circuit and typically draws roughly 30 to 60 amps. Because that’s a substantial addition to a home’s electrical demand, an electrician must look beyond the main breaker rating before recommending a new circuit.
The useful question isn’t simply whether the home has a 100-amp or 200-amp service. It’s how much demand is already assigned to the house and what capacity will remain after charging is added. That distinction prevents an unnecessary replacement or the addition of a circuit to an overloaded system.
What an Electrical Assessment Measures
A load calculation is the standard method for determining whether an electrical system can support a major new demand. It accounts for the home’s service size and existing electrical use, then adds the charging requirements.
During an assessment, we review the service size, main breaker rating, and major household loads. These often include heating and cooling systems, water heating, and cooking or laundry equipment. We also examine the panel’s condition and the wiring path to the parking location because both affect the project scope.
This review provides more information than a count of open breaker spaces. An open space may accommodate a breaker, but it doesn’t prove that the system has enough available capacity for another dedicated 240-volt circuit.
Warning Signs to Address Before Adding EV Charging
New charging equipment shouldn’t be used to work around existing electrical problems. If a panel or circuit already shows signs of strain, those issues need attention before another high-demand circuit is installed.
Watch for these conditions:
- Breakers that trip frequently or constantly.
- Lights that flicker or dim when air conditioning, cooking appliances, or other large equipment starts.
- Outlets that don’t work properly.
- A burning smell near the breaker box.
- A panel original to an older home that hasn’t been evaluated for present-day electrical use.
Panel type also matters. Federal Pacific Electric Stab-Lok and Zinsco panels are associated with fire hazards and generally warrant replacement regardless of whether EV charging is part of the project. Charging equipment may bring the issue to light, but it isn’t the reason the unsafe equipment needs attention.
Memphis Permits & Electrical Code Requirements
Whether a home charging installation needs only a new circuit or includes panel work, permitting and inspection are part of the process. In Memphis and Shelby County, new charging circuits and panel upgrades require a permit through the Memphis and Shelby County Office of Construction Code Enforcement. Unless a homeowner exemption applies, the work must be performed by a licensed or registered Electrical Contractor.
The city and county enforce the 2020 National Electrical Code with local amendments, known as the 2021 Memphis and Shelby County Electrical Code. Permitting and inspection verify that the circuit, overcurrent protection, wiring method, and related panel work meet applicable requirements.
Tennessee allows homeowners to perform electrical work on their own primary residences under a residential property owner’s electrical permit. The exemption doesn’t extend to rental or commercial property. Memphis homeowners should define the project scope and permit requirements before purchasing equipment or scheduling installation.
Options When Capacity Is Limited
A full replacement is appropriate when the load calculation or equipment condition shows that the home can’t safely support the added demand. It isn’t the only possible response to limited capacity.
When a panel is near its limits, we discuss practical options based on the home’s current use and future plans:
- Managing usage when major household loads don’t run at the same time.
- Shifting other loads to reduce the demand included in the charging plan.
- Planning an electrical panel upgrade that supports the charger and anticipated future needs.
Load management uses equipment or an operating plan to limit charging demand while other large loads are active. Whether it fits depends on the calculated demand, the condition of existing equipment, and plans to add electric appliances, another vehicle, or other major loads.
We install Level 1 and Level 2 charging options and can work with a unit the homeowner has already selected. Choosing the equipment first is fine, but its circuit requirements should be compared with the home’s available capacity before installation begins.
Plan the Scope, Timing & Budget
Installation cost depends on the charger type, the wiring distance from the panel to the charging location, and whether the system can support another circuit. A garage beside the panel presents a different wiring path from a detached garage or a location across the home, so we prepare pricing after an on-site assessment rather than quoting a flat price.
Most straightforward home installations can be completed in one visit once the required permits or approvals are in place. Projects involving an electrical panel upgrade take longer because they include equipment replacement, permitting, and inspection steps.
Homeowners shouldn’t build a 2026 budget around the former federal Alternative Fuel Vehicle Refueling Property Credit. Equipment placed in service after June 30, 2026, can’t be claimed under that credit.
Base the Decision on Capacity, Not Assumptions
Don’t assume that every charger requires a new panel or that a 200-amp service settles the question. A review of calculated demand and equipment condition shows whether the sound choice is a dedicated circuit, load management, or an upgrade.
Start with an assessment that accounts for capacity, wiring paths, equipment condition, and future household plans. Titans Electric can evaluate these factors through our Electric Car Chargers service, so reach us at (901) 509-9918 to discuss the next step.