The modern garage is no longer just a place to park a vehicle; it has evolved into a high-demand utility hub. As electric vehicle (EV) adoption accelerates across the Wasatch Front, integrated power planning has become essential. Whether you are building a new detached garage or renovating an existing structure, future-proofing your electrical system is a smart investment in both convenience and property value.
The Standard: Level 2 Charging Requirements
Most EVs come with a Level 1 charger that plugs into a standard 120V outlet, which typically provides only 3–5 miles of range per hour. For daily use, Level 2 charging is now standard. This requires a dedicated 240V circuit—similar to a clothes dryer or kitchen range—and can fully charge most vehicles overnight.
Achieving safe and effective charging requires evaluating your home’s total electrical load. Many older Salt Lake homes operate on 100- or 125-amp main panels. Adding a 40–50 amp EV circuit may push the system to its limits, especially when running air conditioning or heavy appliances simultaneously. In such cases, a main panel upgrade or a “smart” load-management system is often required to meet NEC safety standards.
The Detached Garage Subpanel Advantage
For detached garages, a dedicated subpanel is recommended. Rather than running multiple wires from the main house, a single high-capacity feeder line is installed, offering:
- Capacity for Growth: Supports a current EV charger while leaving room for a second charger, HVAC, or high-draw workshop tools.
- Localized Control: Breakers can be reset directly in the garage.
- Organized Utility Management: Centralized hub for all detached garage electrical needs.
Data and Connectivity: The Digital Trench
When the underground pathway is dug for your electrical lines, it’s the perfect opportunity to run high-speed Cat6 or fiber internet cables alongside them. Because detached garages often sit outside your home’s Wi-Fi range, hardwiring the building ensures that security cameras, smart garage doors, and EV software updates stay connected without interruption.
Power Your Garage for the Future
Electrical infrastructure is the backbone of your garage’s functionality. Planning for high-capacity loads now prevents expensive retrofits later.
If you’re considering EV charging or a full electrical upgrade for your Salt Lake property, Dave Johnson Construction provides expert planning and installation. Contact us for a professional consultation.
Need an EV charger installed in your garage?
We are a local full service garage enhancement company. Our goal is to provide homeowners with impeccable work and undeniable results.
G-L0511C8SY6
Skip to content