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What is EVSE?(Everything You Need to Know)

June 15, 2023

If you’re planning to install EV charging stations, you need to know what EVSE is. EVSE stands for electric vehicle supply equipment. This guide explains what it is and why it’s essential for EV charging. Let’s begin!

Definition of EVSE

What is EVSE

Photo by Ed Harvey on Unsplash

EVSE refers to both the hardware and software used to connect an EV to an electricity source for charging. It can range from a wall-mounted charger in your garage to commercial “level 2” stations in public areas.

Main Components of EVSE

EVSE usually has three main components, which are the charging station, the electric meter, and the cable that connects them. The charging station controls the charging process, and the meter monitors the electricity usage. The cable transfers power from the station to the EV.

Electric Meter

An electric meter measures the amount of electricity used by the vehicle and allows for accurate billing. It’s typically located on the wall near the charging station.

Charging Station

The charging station is where drivers plug in their cars to charge them up. It usually has a digital display that shows the energy drawn from the grid.


The cable connects the charging station and the electric meter, allowing for the transfer of power. It often has a locking mechanism to prevent unauthorized unplugging.

Other Components of EVSE

EVSE can also include communication, energy management, and safety systems. Communication systems allow data to be exchanged between the EVSE and the electric grid. Energy management systems help utilities manage electricity demand efficiently. Safety devices ensure safe usage, such as overload protection.

EVSE TypeVoltageCharging SpeedInstallationCost
Level 1120VSlow (2-5 mi/hr)DIY$300+
Level 2240VModerate (10-60 mi/hr)Professional$700+
DC Fast Charging480VFast (80% in 30 min)Professional$10,000+

Understanding How EVSE Works

How Does EVSE Work

EVSE works by transferring power from the electrical grid to the electric vehicle’s battery through a charging station. The charging station controls the charging process and regulates the amount of power that is sent to the vehicle.

There are different types of EVSE, including level 1, level 2, and DC fast charging. Level 1 uses a standard 120-volt outlet, while level 2 uses a 240-volt outlet and charges faster. DC fast charging is the quickest but requires expensive equipment and professional installation.

EVSE also includes an electric meter that measures the amount of electricity used and a cable that connects the charging station and the vehicle. Additional features may include adapters, Wi-Fi connectivity, energy management systems, and payment systems.

Top EVSE Providers in the United States

Chargepoint designs, develops, and manufacturers EVSE units. They have the largest network of chargers in the U.S. Their fast charging and level 2 chargers can be found along highways and in cities.

Blink is another major player that produces level 2 chargers for residential and commercial use. They have partnered with many auto manufacturers to provide charging solutions for EV owners.

EV Connect is a company that creates software and apps to help operate charging stations. They work with businesses to install and set up EV charging for employees and customers. Their chargepointnetwork app allows you to locate stations and start and stop charging sessions.

Webasto manufactures level 2 chargers for both home and public use. They create portable chargers, wall mount chargers, and fast charging stations. Their chargers work with all EV models currently on roads in America.

Siemens produces level 2 Versicharge chargers for residential and commercial applications. They offer wall mount and pole mount chargers for installation at home or at businesses. Their chargers are compatible with all EVs and many are WiFi enabled for remote access.

Leviton is an electrical equipment company that makes level 2 EV chargers for residential use. Their Evr-Green chargers provide high efficiency charging at home. They produce both indoor and outdoor rated weather-resistant chargers.

The importance of EV

Why is EVSE Important

As electric vehicles become more prevalent, so does the need for reliable and accessible EVSE. EVSE is crucial for creating a sustainable transportation system by providing the necessary infrastructure for electric vehicles to run and charge.

EVSE is a vital aspect of transitioning away from fossil fuels and towards cleaner energy sources. It helps reduce emissions and improve air quality, making it an essential part of promoting a cleaner environment.

By investing in EVSE, we can support the growth of electric vehicles and build a more sustainable future. It’s an essential component of the infrastructure needed for electric transportation to thrive.

Extra Benefits of Installing EVSE

Installing EVSE offers several advantages beyond promoting a cleaner environment. These benefits include:

  1. Increased Convenience: EVSE makes it easier to recharge electric vehicles at home or on the go.
  2. Lower Costs: Access to EVSE can result in savings by taking advantage of off-peak charging rates.
  3. Regulatory Incentives: Some states offer tax credits or rebates as incentives for installing EVSE.
  4. Increased Property Value: Installing EVSE can make your home or business more attractive to potential buyers or tenants.

These benefits make investing in EVSE a smart move for those who want to save money and support sustainable transportation.

Potential Challenges of Owning EVSE

Challenges to Consider When Owning EVSE

While EVSE is vital for sustainable transportation, there are some challenges to consider before investing in a system. These challenges include:

  1. Cost: Installing EVSE can be expensive, particularly if you need to hire a qualified electrician.
  2. Maintenance: EVSE requires regular maintenance to ensure proper functioning.
  3. Regulatory Requirements: Depending on where you live, there may be specific regulations you must meet when installing an EVSE.
  4. Technical Complexity: Understanding the technical aspects of EVSE can be difficult, and it’s important to consult a qualified electrician.

Before installing EVSE, it’s essential to consider these challenges and ensure that you’re prepared to manage them. By being aware of these obstacles, you can make a more informed decision about whether EVSE is right for you.

The Future of EVSE

EVSE technology is rapidly advancing, and we can expect to see more intelligent charging capabilities that allow drivers to connect with their vehicles remotely, manage charging times, and monitor power usage. As the technology gains popularity and becomes more accessible, we can expect to see even more innovative features.

Some of the potential developments in EVSE technology include wireless charging, bi-directional charging, and vehicle-to-grid (V2G) capabilities. These features would allow electric vehicles to charge wirelessly, provide energy back to the grid when not in use, and communicate with the grid to manage energy use.

The future of EVSE is promising, and it will play a significant role in supporting the growth of electric vehicles and promoting sustainable transportation.

Are you interested in learning more about EV charging infrastructure?


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