Electric Car Chargers

HSM designs, installs, and maintains electric car charging systems in a wide variety of commercial locations.

Electric car chargers are becoming vital as more and more vehicle owners choose electric cars.

What are Electric Car Chargers?


Electric car chargers are devices that supply electric energy to recharge the batteries of electric vehicles (EVs). They vary in power output, charging speed, and the type of connector used. Here’s a detailed description of electric car chargers, including their types, components, installation, and usage:

Types of Electric Car Chargers

  1. Level 1 Chargers:
    • Power Output: 120 volts AC (standard household outlet)
    • Charging Speed: Adds about 2-5 miles of range per hour of charging
    • Usage: Ideal for home use and overnight charging
    • Installation: No special installation required; plug into a standard wall outlet
  2. Level 2 Chargers:
    • Power Output: 240 volts AC (similar to household appliances like dryers and ovens)
    • Charging Speed: Adds about 10-60 miles of range per hour of charging
    • Usage: Suitable for home, workplace, and public charging stations
    • Installation: Requires a dedicated 240V circuit, typically installed by a licensed electrician
  3. DC Fast Chargers (Level 3):
    • Power Output: 400-900 volts DC
    • Charging Speed: Adds about 60-100 miles of range in 20 minutes
    • Usage: Ideal for commercial and public charging stations, particularly along highways and in urban areas
    • Installation: Requires significant electrical infrastructure and is typically installed by professionals

Components of Electric Car Chargers

  1. Connector Types:
    • SAE J1772 (Type 1): Standard connector for Level 1 and Level 2 chargers in North America
    • CHAdeMO: Commonly used for DC fast charging, compatible with many Japanese and some European EVs
    • Combined Charging System (CCS): Supports both AC and DC charging, widely adopted in Europe and North America
    • Tesla Connector: Proprietary connector used by Tesla vehicles for Level 1, Level 2, and Supercharger stations
  2. Charging Cable:
    • Connects the charger to the vehicle’s charging port
    • Varies in length, typically ranging from 10 to 25 feet
  3. Control Box:
    • Manages the flow of electricity and communication between the charger and the vehicle
    • Ensures safe charging by monitoring electrical parameters and providing protective functions like overcurrent protection
  4. Display and User Interface:
    • Provides information such as charging status, power output, and fault alerts
    • May include buttons or touchscreens for user interaction

Installation and Usage

  1. Home Charging Installation:
    • Level 1: Simply plug into a standard 120V outlet
    • Level 2: Hire a licensed electrician to install a dedicated 240V circuit and charging station
    • Considerations: Location (garage, driveway), weatherproofing (for outdoor installations), and proximity to the vehicle’s parking spot
  2. Public Charging Installation:
    • Typically installed by professional services or utility companies
    • Requires site assessment, electrical infrastructure setup, and compliance with local regulations and standards
  3. Using Electric Car Chargers:
    • Plugging In: Connect the charging cable to the vehicle’s charging port and start the charging session
    • Monitoring: Use the display on the charging station or the vehicle’s dashboard to monitor charging progress
    • Safety: Follow all safety guidelines, such as not using damaged cables, avoiding charging in wet conditions (unless the charger is weatherproof), and ensuring proper ventilation

Benefits of Electric Car Chargers

  1. Convenience:
    • Home charging allows for overnight charging, ensuring the vehicle is ready for use each day
    • Public charging stations provide flexibility for longer trips and urban driving
  2. Cost Savings:
    • Electricity is generally cheaper than gasoline, resulting in lower operating costs
    • Many areas offer incentives and rebates for installing home chargers
  3. Environmental Impact:
    • Using electric vehicles and chargers reduces greenhouse gas emissions and reliance on fossil fuels
    • Supports the transition to renewable energy sources
  4. Technology Integration:
    • Smart chargers can be integrated with home automation systems and managed via smartphone apps
    • Enables features like scheduled charging, remote monitoring, and energy usage optimization


Electric car chargers are essential components for the widespread adoption of electric vehicles. They come in various types and power levels to suit different needs, from home charging to fast charging on the go. Proper installation and use ensure efficient, safe, and cost-effective charging, contributing to the convenience and sustainability of electric mobility.


How do we Install an Electric Car Charger System?


Installing electric car chargers requires careful planning, adherence to safety standards, and precise execution to ensure a reliable and efficient charging solution. Here’s a detailed outline of our electric car charger installation process:

1. Project Initiation and Planning

Understanding Customer Requirements:

  • Meet with the customer to discuss their needs, including the type of charger (Level 1, Level 2, or DC Fast Charger), location, and any specific preferences.
  • Determine the vehicle type and compatibility with different charging connectors.

Site Assessment:

  • Conduct a thorough site assessment to evaluate existing electrical infrastructure, available space, and potential installation challenges.
  • Identify the best location for the charger, considering convenience, proximity to the vehicle, and accessibility.

2. Feasibility Study and Design

Feasibility Study:

  • Perform a feasibility study to ensure the installation is viable within the customer’s budget and timeline.
  • Identify any zoning, permitting, or regulatory requirements specific to the installation site.

Design Plan:

  • Develop a detailed design plan, including electrical load calculations, wiring diagrams, and placement of the charger.
  • Select the appropriate charger model and any additional components required for the installation, such as mounting hardware and protective enclosures.

3. Cost Estimation and Budgeting

Preliminary Budget:

  • Provide an initial cost estimate based on the site assessment and design plan.
  • Ensure the project scope aligns with the customer’s budget, making adjustments as necessary.

Final Budget:

  • Develop a detailed budget once the design is finalized, including equipment costs, labor, permits, and contingencies.

4. Permitting and Approvals

Obtain Permits:

  • Prepare and submit all necessary permit applications to local authorities.
  • Address any feedback or required changes to obtain approvals.

5. Installation Phase

Site Preparation:

  • Mobilize installation teams and set up the site, ensuring all safety and regulatory requirements are met.
  • Conduct a pre-installation meeting to align all stakeholders on the project plan and timelines.

Electrical Work:

  • Install and upgrade electrical systems as needed, including wiring, circuit breakers, and outlets.
  • Ensure the installation meets local electrical codes and standards.

Charger Installation:

  • Mount the charger in the designated location using appropriate hardware and techniques.
  • Connect the charger to the electrical supply, following manufacturer instructions and safety protocols.

System Integration:

  • Integrate the charger with any existing systems, such as home automation or energy management systems, if applicable.
  • Ensure proper connectivity and functionality of smart features like remote monitoring and scheduled charging.

6. Testing and Commissioning

Initial Testing:

  • Perform initial tests to ensure the charger is properly installed and operational.
  • Check for any electrical issues, connectivity problems, or installation defects.


  • Conduct comprehensive testing of the charging system, including load testing and functional checks.
  • Verify that the charger communicates correctly with the vehicle and any connected systems.

7. Customer Training and Documentation

Customer Training:

  • Provide training sessions for the customer and any relevant personnel on how to use the charger, including starting and stopping charging sessions, monitoring charging progress, and troubleshooting common issues.


  • Provide the customer with all necessary documentation, including user manuals, warranties, and maintenance guidelines.
  • Ensure the customer has access to support resources and contact information for any future issues or questions.

8. Handover and Support


  • Formally hand over the completed installation to the customer, ensuring they are fully satisfied with the outcome.
  • Obtain final sign-off from the customer, marking the successful completion of the project.

Post-Installation Support:

  • Schedule follow-up visits or calls to address any post-installation issues or concerns.
  • Provide ongoing support and maintenance services as needed.

Continuous Improvement:

  • Gather feedback from the customer and installation team to identify areas for improvement in future projects.
  • Implement lessons learned to enhance our installation process continually.

This comprehensive approach ensures that we deliver high-quality electric car charger installations that meet the customer’s needs and provide a reliable, efficient, and safe charging solution.

How much does an Electric Car Charger System Cost?

The cost of an electric car charger can vary significantly based on several factors, including the type of charger, its features, installation requirements, and brand. Here’s a breakdown of the typical costs associated with electric car chargers:

Charger Costs

  1. Level 1 Chargers:
    • Cost: $300 – $600
    • Description: These chargers use a standard 120-volt outlet and are typically included with the purchase of an electric vehicle. They are slower, adding about 2-5 miles of range per hour of charging.
  2. Level 2 Chargers:
    • Cost: $500 – $1,500
    • Description: These chargers require a 240-volt outlet and are faster, adding about 10-60 miles of range per hour of charging. They are suitable for home, workplace, and public charging.
  3. DC Fast Chargers (Level 3):
    • Cost: $10,000 – $50,000+
    • Description: These chargers use high voltage (400-900 volts) and can add about 60-100 miles of range in 20 minutes. They are primarily used in commercial and public charging stations.

Installation Costs

  1. Level 1 Chargers:
    • Installation Cost: Minimal to none, as they can be plugged into a standard household outlet.
  2. Level 2 Chargers:
    • Installation Cost: $500 – $2,000+
    • Factors Affecting Cost:
      • Electrical upgrades (e.g., adding a 240-volt outlet, upgrading the electrical panel)
      • Distance from the electrical panel to the installation location
      • Labor costs, which can vary based on local rates and complexity
  3. DC Fast Chargers:
    • Installation Cost: $20,000 – $50,000+
    • Factors Affecting Cost:
      • Significant electrical infrastructure upgrades
      • Site preparation and construction
      • Utility company coordination and potential grid upgrades

Additional Costs

  1. Permits and Inspections:
    • Cost: $100 – $500, depending on local regulations and permit fees.
  2. Smart Features and Connectivity:
    • Cost: $200 – $500+
    • Description: Some chargers come with smart features like Wi-Fi connectivity, remote monitoring, and scheduled charging, which can add to the overall cost.
  3. Rebates and Incentives:
    • Many regions offer rebates and incentives for purchasing and installing electric car chargers, which can significantly reduce the overall cost. It’s essential to check local programs and utility company offers.


The total cost of installing an electric car charger can range from a few hundred dollars for a Level 1 charger to tens of thousands of dollars for a DC fast charger. For most homeowners, installing a Level 2 charger will likely cost between $1,000 and $3,000, including the cost of the charger and installation. It’s important to factor in potential additional costs such as permits, electrical upgrades, and smart features, as well as to explore available rebates and incentives to help offset the costs.