How to Wire a New Garage for an EV Charging Station?

Many people are deciding that the time is right to switch to an EV as the all-electric transportation future approaches at an accelerating rate. However, although there are many advantages to driving an electric car, purchasing your first EV is undoubtedly a big move that requires some planning.

To fully benefit from the significant advantages that EVs will bring, it is crucial to set up and wire your garage for effective EV charging.

The necessity for a home charging station appears to be one of the more challenging perceived barriers to operating an electric vehicle (EV). However, it’s essential to have a home charging station for your electric car if you always want it charged and ready to go.

EV charging stations come in three types, each with a different installation procedure. Hence, one of the first and most important steps is deciding what kind of charging system to install. This significantly influences how simple and fast it will be to charge your new EV.

Level 1 EV Charging Stations

Your electric car already has a Level 1 charger, which plugs directly into a standard 110-120V home supply. It is also the easiest type to use. As a result, this charger can be used in almost all garages and installed with little to no effort, as the electrical circuit can support the current.

A Level 1 charger has a short cord leading from a control box to a normal three-pronged outlet. A longer cord runs from the control panel to your electric car’s plug point.

Level 1 EV charging station

A Level 1 charging station’s key advantage is that it can be installed without a professional’s assistance and that there are no additional installation costs to be concerned about. They can only charge your EV slowly, though. A modest car may often be fully charged in 24 hours; larger or more powerful cars can take considerably longer.

It’s improbable that a Level 1 charger will be quick enough for your electric vehicle if you intend to use it daily for traveling more than 20 km each time. But if you only drive a little distance each day, such as for a short commute to school, and you can leave the car plugged in the rest of the time, Level 1’s convenience might overcome its slow charging disadvantage.

Level 2 EV Charging Stations

Electric vehicle owners should have a 240-Volt Level 2 charging station available, even if plug-in EVs can be recharged overnight using their 120-Volt level 1 charging connections. The Level 2 charging stations can recharge the entire battery pack in 4-9 hours, based on the specific vehicle.

For charging your car, you’ll need a separate 240-volt circuit. With permits added, the cost of a professional installation often ranges. Your costs will increase to the higher end if your current electrical supply cannot accommodate the additional demand.

Depending on the presence of other heavy draws like a tankless water heater, an electric stove or dryer, or a hot tub, a modest house with a 150-amp or greater service may be able to fit in an additional 30- or 40-amp circuit. You might also need to buy charging equipment to connect your electric vehicle (EV) to the newly installed circuit.

EV Level 2 charging station

Wiring & Installation

First, wherever you intend to place your charging station, work with your electrician to construct a dedicated 240-Volt line 1-2 feet below that location. Another way to increase the circuit voltage to 240V is to connect a “double-pole” circuit breaker to two 120V buses simultaneously using a 4-strand wire.

In terms of wiring, this entails connecting two hot wires to the double-pole breaker, a common wire to the bus bar, and a ground wire to the ground bus bar. Your breaker box might need to be completely replaced to have a compliant interface. To ensure that all power entering your breaker box is turned off, you must first turn off all breakers before turning off your main breaker.

rewiring a charger

After connecting the appropriate circuit breaker to your home’s wiring, you can link your newly installed 4-strand wire to your charging spot. This 4-strand wire needs to be securely insulated and secured to prevent damage to your electrical systems.

Confirm that your new circuit can deliver 50 Amps, or a 40-Amp charging rate, using 80% of the circuit capacity. So even if the first charging station you purchase only has a 24 Amp capacity (as many less-priced ones do), you should still “future-proof” the garage wiring.

Additionally, instruct the electrician to install a NEMA 6-50 socket in the wall below the preferred location. This is the type of socket used by most non-hardwired charging stations. Another option is hard wiring, which prevents heat buildup between the plug and socket but prevents the charging station from moving with you if you relocate.

After successfully wiring your garage, the final step is mounting your charging station, where you will be charging your car and connecting it to the 240-volt line. The charging unit serves as a secure storage area for the charge current and prevents electricity from flowing through until it detects that your charger is plugged into the charging port on your EV.

Ensure the charging cord can extend to a vehicle parked outside the garage. A minimum chord length is 16 feet, and 25 feet is also worth the additional expense.

It is always wise to employ a qualified electrician to install your charging station due to the technical complexities and risk of the Level 2 EV charger DIY installation. Local building regulations frequently call for permits and professional inspections in any case, and performing an electrical installation incorrectly might result in property damages to your home and electrical equipment. Electric work is also hazardous, so it’s best to leave it to a qualified expert.

Level 3 EV Charging Stations

Due to their outrageously expensive cost and operational requirements for specialized and powerful equipment, Level 3 charging stations, also known as DC Fast Chargers, are typically employed in commercial and industrial environments. Meaning that these Charging stations cannot be installed in homes.

Most Level 3 chargers can charge compatible vehicles to 80% of their capacity in 30 minutes or less, which makes them more appropriate for roadside charging stations. It’s important to remember that not all level 3 chargers are compatible with every EV. Before depending on level 3 chargers for on-the-go recharging, make sure you know which public charging stations you can use for your electric vehicle.

The price to charge at a public EV charging station varies as well. Your charge rates could quite vary depending on your supplier. Flat monthly rates, per-minute costs, or a combination of both can be used to establish EV charging station pricing. Find a public charging program in your area that best suits your needs and your car by doing some research.

EV Charging and Solar Power

Rooftop solar and electric vehicles are a fantastic energy combination. In certain cases, solar providers will even offer package deals that include both your solar installation and a complete EV charger installation.

Couple your electric vehicle with your home solar panels to maximize savings, among many other benefits. You can fully charge your electric vehicle (EV) in a matter of hours using the power produced by your solar panel system, which will enable you to save a lot of money on gas costs. In addition, you won’t have any trouble producing the required amount of power if your rooftop solar system is sized properly to consider for EV charging and other essential loads.

There are a few factors to consider if you want to go solar but are thinking about switching to an electric automobile in the future. For instance, you may spend money on microinverters for the PV system so that you can quickly add more panels later if your energy requirements rise when you acquire an EV.

Remodeling your garage can be tough.  Why not make it easy? We have been building garages for Chicago homeowners since 1959. Get a free quote now and start your next garage building project off right.

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