EV Charger Installation FAQ's

Expert Answers from Allen Electrical
Louisville’s Trusted Residential Electrician

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As a leading residential electrician serving Louisville, St. Matthews, Jeffersontown, Middletown, Prospect, Shepherdsville, New Albany, and Clarksville, Allen Electrical provides safe, reliable, and code-compliant EV charger installations. Below you’ll find answers to the most common questions homeowners ask when considering a Level 2 electric car charger.
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What Is the Difference Between Level 1 and Level 2 EV Chargers

The primary differences are charging speed and power supply.

Level 1 Chargers

• Uses a standard 120-volt outlet
• Slowest charging station option
• Takes 8-12 hours for a full charge
• Works for very light or overnight charging​​

Level 2 Chargers

• Requires a 220-volt circuit
• Offers significantly faster charging
• Takes 4-8 hours for a complete charge
• Ideal for daily home charging

Summary: Level 2 provides the best home-charging experience, and Allen Electrical installs them safely and professionally. 
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Do I need a 200 Amp Panel for My Car Charger?

Not always. Requirements vary by EV model and charging system. Most homes in Louisville and the surrounding areas with 100-amp panels can support Level 2 chargers. Allen Electrical's licensed technicians can evaluate your service to determine the best solution.
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Do I Need to Upgrade My Electrical Panel?

Upgrading may be necessary if:

• Your panel is outdated
• You're near capacity
• You're adding multiple high-load appliances

As a full-service residential electrician, Allen Electrical provides panel upgrades, electrical repair, and full electrical services for safe EV charging. 
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Is a 100 Amp Panel Enough for an EV Charger?

Often, yes. Many Level 2 chargers safely operate on 100 amp service. However, older homes in Prospect, St. Matthews, Middletown, and New Albany may require a load calculation.
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What Size Breaker Do I need for My EV Charger?

EV chargers typically require 30-50 amp breakers, depending on the model. Allen Electrical will size and install the correct breaker for code-compliant installation.
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Do I need 30 Amp or 50 Amp Service for My Electric Car

Most charges require a minimum of 30 amps, while premium units may need 40-50 amps. Our team can help you select the best option for your vehicle and driving routine. 
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Do I need 110 or 220 Volts to Charge My Electric Car?

• 110 volts = Level 1 (slow)
• 220 volts = Level 2 (fast + preferred)

For overnight charging, a Level 2 charger running on 220 volts is ideal.

Can I Plug My EV into a Dryer Outlet?

No. Dryer outlets were not designed for continuous EV charging. A dedicated circuit installed by a licensed electrician is always the safest option. 
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Is It Cheaper to Charge My EV at Home or a Public Charging Station?

Charging at home with a Level 2 unit is typically much more cost-effective than public charging.
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Is a Level 2 Charger Worth It?

Absolutely. Benefits include:

• Convenience
• Faster Charging
• Lover long-term operating costs
• Improved battery health

This is one of the most valuable upgrades a homeowner can make, especially with an EV as their primary vehicle. 

Why Choose Allen Electrical?

Our team offers:

1. Licenses residential electricians
2. 24/7 emergency electrician availability
3. Expertise in EV chargers, panel upgrades, and home generator installation
4. Service across Louisville, KY, and Southern Indiana

We specialize in:

• Receptacles and switches
• Breakers and fuses
• Ceiling fans and light fixtures
• Motion-activated lights
• Exterior lighting 
• Range and dryer outlets
• Basement and garage wiring
• Electrical panels 
  
• Remodels and add-ons
  
• EV car charging electrical 

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Contact Louisville's Favorite Electrician

Call 502-636-4357 or visit AllenElectrical.com
Serving: Louisville KY, St. Matthews, Jeffersontown KY, Middletown KY, Prospect KY, Shepherdsville KY, New Albany IN, Clarksville IN