Electric vehicle adoption in Florida is accelerating fast, and Level 2 home chargers — the 240-volt units that can charge most EVs overnight — are becoming as common as dishwashers in new construction. But unlike plugging in a laptop, a Level 2 EVSE (Electric Vehicle Supply Equipment) installation requires a dedicated circuit, a permit, an inspection, and in many cases a load calculation to confirm your existing electrical service can support it. Skipping any of these steps puts you at risk of electrical fires, failed home inspections, and insurance claim denials.
What a Level 2 Charger Actually Demands
A typical Level 2 home charger draws between 32 and 48 amps continuously — roughly the equivalent of running three or four window air conditioners at once, indefinitely. The NEC's 125% continuous load rule means the circuit must be rated for 40–60 amps depending on the charger, and it must be dedicated: no other loads on that circuit. If your home's electrical panel is already near capacity — common in older Florida homes with 100-amp service — adding an EV charger may require a panel upgrade before the charger can be safely installed.
The wire run matters too. A 48-amp charger on a 60-amp circuit requires 6-gauge copper wire minimum. If the garage is on the opposite side of the house from the panel, that wire run can be expensive — and cutting corners on wire gauge is a fire hazard. An electrical engineer can specify the right conductor size, run length, and conduit type for your specific installation.
Florida Permit Requirements for EV Chargers
In Florida, an EV charger installation requires an electrical permit in virtually every jurisdiction. The permit process requires a licensed electrical contractor to pull the permit, complete the wiring, and schedule an inspection. The inspection covers proper circuit sizing, GFCI protection where required (outdoor installations), wire gauge, panel connections, and the charger's listing (UL-listed equipment only). Most EV charger installations fail inspection for one of two reasons: incorrect circuit sizing or improper outdoor weatherproofing.
Some Florida utilities — particularly FPL — also offer EV charging programs with specific technical requirements for chargers that participate in demand response. If you're interested in utility rebates or off-peak charging rates, your charger and installation need to meet the utility's requirements in addition to the electrical code.
Load Calculation: The Essential First Step
Before your electrician runs wire or your installer mounts the charger, a load calculation should determine whether your existing service can handle the added demand. The calculation looks at all existing loads — HVAC, water heater, appliances, lighting — and adds the charger's demand. If the total exceeds your panel's rating, you need a service upgrade before the charger installation, not after.
This matters especially in Florida where HVAC demand is high year-round. A 200-amp service that's already carrying 150 amps of HVAC, water heating, and general loads doesn't have room for a 48-amp EV charger without careful management. A load calculation makes this clear upfront so you can plan the upgrade together with the charger installation — one permit, one inspection, one project — rather than discovering the problem mid-installation.
Choosing the Right Charger Level
Most Florida homeowners don't need the fastest possible Level 2 charger. A 32-amp (7.2kW) unit charges most EVs at a rate of 20–25 miles per hour of charging — enough to fully charge from empty overnight for any typical daily driving pattern. A 48-amp (11.5kW) unit is worth considering if you drive a large truck or SUV with a large battery, if you regularly come home nearly empty, or if you anticipate having two EVs in the future. The 48-amp unit requires a 60-amp circuit and larger wire, which costs more to install — but it's much cheaper to do it right the first time than to upgrade the circuit later.