The ultimate ev installer toolkit what’s inside and why it matters

April 22, 2025

Introduction to Electric Vehicles

Thinking about becoming an EV charger installer? There’s never been a better time. The switch to electric is accelerating—and so is the demand for skilled professionals ready to power the future.

Electric vehicles (EVs) are becoming a common sight on UK roads, and with that rise comes a growing need for skilled installers who understand how to fit and maintain EV chargers properly. Government policies, net-zero goals, and a push for sustainable transport are all accelerating the switch to EVs, making this an exciting time for electricians entering the industry.

As an EV charger installer, it’s essential to understand the different types of EVs—battery electric vehicles (BEVs), plug-in hybrid electric vehicles (PHEVs), and range-extended EVs—and the charging systems they require. BEVs run solely on electric power and require regular charging. PHEVs combine petrol/diesel engines with electric drivetrains, typically charging overnight at home. Charging an electric car at home is practical and efficient, especially with off-street parking, and involves understanding the different charging points and connector types needed for optimal setup.

Each EV features a different onboard charger, which affects how fast it can receive electricity. Understanding the relationship between battery size (measured in kWh), maximum charging rate (in kW), and driver behaviour is essential. For instance, a 60kWh battery will take approximately 8 hours to charge fully using a 7kW home charger.

From AC charging (commonly used in homes and workplaces) to DC rapid charging (used at service stations and public charging hubs), installers must be up to speed with installation types, load calculations, connection procedures, and potential future upgrades. DC charging bypasses the onboard charger, delivering electricity directly to the battery at high speed, but comes with more complex infrastructure and cost.

Keeping up to date with industry trends ensures you stay competitive and compliant. Innovations in solid-state batteries, integrated solar systems, bi-directional charging, and app-based energy tracking are transforming the installer’s role into one that requires both technical and digital literacy.

To install confidently, you’ll need a firm grasp of key terms like EV charger installation, charge point, tethered vs untethered, and vehicle-to-grid (V2G) charging. Understanding legislation, consumer expectations, and grid integration will help you design smarter, safer installations that meet today’s demand—and tomorrow’s expectations.

Choosing the Right EV Charger

Charger Types and Features

Selecting the best charger for a customer involves more than just power output. Here’s a breakdown:

Tethered chargers: Built-in Type 2 cable attached (most common in the UK). Ideal for plug-and-go convenience. The downside? If your EV changes connector type, the tethered charger may no longer be compatible.
Untethered chargers: Offers a cleaner appearance and allows you to use your vehicle’s cable. An untethered charger offers future-proofing and is easier to replace.
Smart chargers: Come with Wi-Fi or Bluetooth connectivity, letting users manage charging remotely via smartphone apps. Features often include solar compatibility, scheduled charging, lock/unlock controls, and detailed energy tracking. Many OZEV grants now require a smart charger to be eligible.
Socketed vs. universal chargers: Some untethered units offer universal sockets, supporting both Type 1 and Type 2 cables.
Fast and Rapid Charging:
3.6kW (slow): Adds about 15 miles per hour. Suitable for short-range PHEVs.
7.2kW (fast): Adds around 30 miles per hour. Ideal for most residential installs.
22kW (rapid AC): Requires three-phase electricity, which is rare in homes.
50kW+ DC chargers: Found in commercial or public areas. Not typical for domestic installs.

Practical Factors to Consider

Load Management: Use Dynamic Load Balancing (DLB) systems to protect the home’s main fuse when EV charging coincides with usage of other high-load appliances (like ovens or immersion heaters).
Location of the unit: Indoor vs. outdoor placement affects your choice. Look for IP-rated weatherproof units if mounted externally.
Wi-Fi signal strength: Ensure strong signal where the charger is mounted. Mesh systems or repeaters might be needed for stable smart features.
Cable length: Standard installations often include up to 10 metres of cable. More than that may incur extra costs and installation planning.
Customer lifestyle: Daily mileage, work-from-home habits, and whether they own more than one EV should influence charger type selection.
Solar PV integration: For eco-conscious users, choose chargers that support direct integration with home solar systems (like myenergi Zappi or GivEnergy EV chargers).
Installation services: Book installation services through the manufacturer to ensure a qualified electrician handles the installation. This includes providing information about the home’s electrical system and preparing the installation area, which is crucial for functionality and safety.
Save money: Choosing a lower power rate, such as 3.6kW, can help save money. While a slower charging rate may extend the time it takes to charge an electric vehicle, it can also lead to reduced costs for the user.

The Charger Installation Process

Site Assessments and Electrical Checks

A site assessment isn’t just about quoting—it’s about anticipating problems before they arise:

Fuseboard capacity: Does the existing consumer unit have a spare way? Is it RCD-protected? You may need to install a small sub-board.
Earthing system type: Most properties are PME, but you must plan accordingly. PEN fault detection is mandatory under new regulations.
Ze test and bonding checks: Confirm that main protective bonding is present and correct. Earth loop impedance must meet disconnection times.
Export limits: If the property also has solar PV, you may need to install current-limiting devices to prevent overloading the local grid.
DNO notification (EV/HP form): Required for all new charge point installs. Some installations require prior approval, which can take several weeks.
Home’s electrical system: Understanding your home’s electrical system is crucial. Provide specific information about the electrical panel’s location and its distance from the charger. A qualified electrician may need to assess and upgrade the system to ensure a successful and safe installation.
Qualified electrician: Always consult with a qualified electrician to ensure the installation is safe and complies with local regulations. They can determine any necessary upgrades to your home’s electrical system.

Standard Installation Steps

Pre-Installation Survey: Walk the site with the customer. Take photos and measurements. Provide clear expectations on scope and timeline.
Preparation: Isolate power. Confirm cable lengths. Prepare walls and drill safely through brick or block walls using appropriate fixings.
Mounting the Charger: Mount on a flat surface with waterproof fixings. Use spacers if mounting to uneven brick.
Cable Routing: Clip or trunk cable neatly along agreed paths. Avoid sharp bends and high-risk zones (e.g. near taps or windows).
Consumer Unit Connections: Install MCB/RCBOs as needed. Label circuits clearly. Protect tails and neutral links.
Electrical Panel Assessment: Assess the electrical panel to determine if it can handle the additional load of the EV charger. This may involve checking the capacity and condition of the panel and identifying if any upgrades are necessary.
Circuit Breaker Installation: Install a circuit breaker to protect the electrical system. Ensure a qualified electrician determines the correct specifications and ensures safety compliance.
Wi-Fi Setup and App Pairing: Connect the charger to the app, perform firmware updates, and walk the customer through setup.
Testing & Commissioning:

Earth fault loop impedance (Zs)
RCD time and ramp test
Voltage, current, and polarity checks
Functional test of the charging sequence

Handover: Supply EIC, Part P Building Control certificate (if applicable), DNO notification form copy, and user manual.

Charging at Home: What to Know

Home EV charging is one of the biggest conveniences for EV owners and often one of the first services new installers will be asked to deliver. The majority of electric vehicle owners prefer home charging because it’s cheaper than public options, more convenient, and integrates well with smart energy solutions like solar panels and off-peak tariffs. Additionally, home EV charger installations can benefit from specific government grants aimed at supporting the installation of charging points for homeowners with electric vehicles.

When choosing a home charge point, it’s important to consider whether it is tethered or untethered. Untethered chargers require users to supply their own cable, offering flexibility but also the need to manage a separate cable.

Key Considerations for Installers

Location and Access: Installers must ensure there is a safe, unobstructed place to mount the charger. This includes consideration for how the cable will reach the car, avoiding footpaths or driveways where it could become a tripping hazard.
Trip Hazard: When installing the charger, it is crucial to avoid creating a trip hazard. Running charging cables across roads or walkways can be dangerous. While cable covers can mitigate this risk, there is still a potential safety issue that could attract scrutiny from local authorities.
Off-Street Parking: OZEV grants and most residential installs require off-street parking. Properties without a driveway may require specialist planning approval for on-street installations.
Groundworks and Surface Mounting: Some home installs may require digging to bury cables underground. This includes ducting and sealing to prevent water ingress. Other times, cables may be clipped along external walls or hidden inside garages.
Customer Education: Explain how to use the charger, how to schedule charging through the app, and the benefits of using lower tariff times. Provide guidance on checking for firmware updates, connecting to the charger app, and the importance of regular usage for battery health.
Load Management: In homes with high electrical usage (e.g., heat pumps or electric cookers), dynamic load management is essential to avoid overloading the supply.
Energy Supplier: Communicate with the energy supplier to verify the feasibility of upgrading the electrical connection. This ensures proper billing for energy usage after installation and confirms that the existing infrastructure can support the new load.
Smart Meter Integration: For homes with smart meters, you can advise the customer to connect their energy usage with apps to track usage and optimise off-peak rates.

Aesthetic & Practical Considerations

Match the charger to the house exterior when possible.
Use discreet cabling solutions like coloured trunking or painted conduits.
Ensure any drilled holes are properly sealed against the elements.
Consider the EV owner’s preferences to ensure the selected charger meets their specific needs and enhances their overall experience.
Evaluate the factors affecting installation cost, such as the complexity of the installation, distance from the power source, and any additional features or discounts available.

Maintenance and Upgrades

Just like any electrical appliance, EV chargers require ongoing maintenance to ensure optimal performance and safety. Most EV chargers, whether single-phase or three-phase, need regular checks to maintain their technical specifications and capabilities. As an installer, offering maintenance packages or support services can set you apart. Additionally, some car manufacturers provide free or discounted home chargers as part of their sales or leasing agreements for electric vehicles, so it’s important to evaluate these offers to ensure they meet your needs and offer good value.

Routine Maintenance Tasks

Visual Inspection: Look for damage to the charging cable, cracks in the charger housing, and signs of water ingress.
Electrical Checks: Test RCDs and RCBOs for functionality. Check earth loop impedance and insulation resistance.
Firmware Updates: Many smart chargers release updates regularly. Ensuring the firmware is up-to-date can resolve bugs or introduce new features.
Testing Charging Cycle: Plug in a vehicle or test unit to verify the charger engages, charges, and shuts off correctly.
Inspecting the Charging Unit: Regularly inspect the charging unit to ensure it is functioning efficiently and safely. This is crucial for maintaining optimal home charging solutions.
Checking the Fuse Box: During maintenance, check the fuse box to ensure it meets the standard installation requirements and can handle the electrical load of the EV charger.

When and Why to Upgrade

Increased Demand: Households with two EVs or larger battery packs may need to upgrade from a 3.6kW or 7kW to a faster system (where three-phase is available).
Smart Integration: Early generation chargers may lack app control or solar integration—features more customers are now demanding.
Regulatory Compliance: Older units might not meet the latest IET Wiring Regulations or OZEV requirements.
Visual Appeal: Some customers want newer, sleeker units that better match their property aesthetics.
Single Phase Supply Limitations: Most homeowners utilize a single-phase supply, which typically supports lower charging speeds compared to a three-phase supply. This can be a limitation for those needing faster charging capabilities.
Benefits of Upgrading to Three Phase Electricity Supply: Upgrading to a three-phase electricity supply can significantly enhance charging times, especially for high-power EV chargers like the 22kW models. However, it is relatively rare in residential settings and can be costly. It’s important to check compatibility with the electric vehicle before making such an upgrade.

Offering upgrade advice can be a valuable aftercare service and helps extend customer relationships long after the original install.

Charging Speeds and Efficiency

Understanding charging speeds is fundamental to recommending the right solution and managing customer expectations. Charging speeds can significantly impact the electric range recharged per hour, making it crucial to choose the appropriate charger type based on its speed and capacity. Additionally, the size of the battery in the EV affects charging times, with a 7kW charger being suitable for EVs with any size battery, ensuring faster charging during different times of the day.

Types of Charging Speeds

Slow Charging (3.6kW): Typically used for plug-in hybrids or households with limited electrical capacity. Adds approx. 15 miles of range per hour.
- Suitable for overnight charging, especially for smaller electric vehicles, as it can take almost 24 hours to fully recharge certain EVs.
Fast Charging (7.2kW): Most common for residential installs. Adds approx. 30 miles per hour.
Rapid Charging (22kW AC): Requires a three-phase supply and a compatible vehicle. Can add approx. 75 miles per hour.
DC Rapid Charging (50kW to 350kW): Found in public stations. These units bypass the onboard charger and feed DC directly into the battery.
- A domestic socket can be used for emergency or occasional charging, but installing a dedicated charging point is recommended for more efficient and safer charging.

Factors Affecting Charging Speed

Vehicle’s Onboard Charger Capacity: A car with a 7kW onboard charger won’t benefit from a 22kW charger.
State of Charge: EVs charge faster at lower battery levels and taper off as they approach 100%.
Ambient Temperature: Cold weather slows charging efficiency.
Power Supply Constraints: Homes on single-phase can’t exceed 7.4kW without a costly upgrade.
Power Rating: Including the power rating in the EV/HP application form submitted to the Distribution Network Operator (DNO) is crucial. Accurate information about the power rating helps the DNO assess the application’s impact on the local electricity network and determine if additional works are necessary.
Distribution Network Operator: The Distribution Network Operator (DNO) plays a key role in approving the installation of an EV charger at home. Submitting an EV/HP application to the DNO with all necessary information is essential to avoid potential fines and legal action.

Understanding and explaining these limits to customers helps avoid disappointment and increases confidence in your installation expertise.

Commercial Installations

Commercial EV installations represent a growing market segment, including business fleets, hospitality venues, apartment complexes, and retail environments. Vehicle to grid charging (V2G) offers significant benefits for commercial installations by allowing businesses to sell excess electricity back to the National Grid, thereby reducing energy costs and supporting grid stability. The national grid plays a crucial role in supporting V2G technology, enabling efficient energy management and contributing to a more sustainable energy ecosystem.

Key Differences From Domestic Installs

Three-Phase Power: Most commercial properties have access to three-phase power, enabling faster charging solutions (e.g., 22kW or 43kW AC and 50kW+ DC chargers).
Load Sharing & Balancing: Installations often require integrated load management systems to distribute power across multiple charge points.
Access Control: Businesses may need RFID, contactless payment, or mobile app access to control who uses the charger.
Back-End Management: Many commercial systems include software platforms for tracking usage, billing, reporting, and remote troubleshooting.
Planning & Groundworks: Larger installs may involve trenching, custom signage, bollards, lighting, and weather shelters.
Selecting the Right Charging Point: Choosing the appropriate charging point for commercial installations is crucial for energy efficiency and cost management. It involves considering the installation process, financial implications, and the benefits to home energy bills.
Varying Needs of EV Drivers: In commercial settings, the needs of EV drivers can vary significantly. Tailored energy tariffs and specific considerations for different types of drivers are essential to optimize charging costs and meet unique usage patterns.

Typical Clients & Install Locations

Office buildings (fleet and staff charging)
Hotels (guest EV charging)
Petrol stations (rapid DC charging hubs)
Car parks (public charge bays)
Residential blocks (private and communal EV access)
Energy tariffs: Commercial clients can benefit from specialized EV energy tariffs that offer reduced rates for charging during off-peak hours. Utilizing these tariffs can significantly lower electricity bills and optimize charging schedules.
Installation cost: Factors affecting installation cost for commercial installations include the number of chargers, electrical infrastructure, and potential need for upgrades. Competitive pricing and potential discounts can make the overall installation more affordable.

Offering scalability and modular upgrades is key. Many commercial clients start with a few chargers and expand later.

Smart Charging and Energy Management

Smart charging is reshaping the way we think about electricity consumption and energy distribution in the EV world. As an installer, understanding the value and implementation of smart systems allows you to add serious value to every installation. Installing a home charge point with smart charging capabilities can optimize energy use, reduce costs, and provide convenience for homeowners. Smart charging solutions can also be tailored to benefit different types of EV drivers by meeting their specific needs and ensuring efficient energy management.

What Is Smart Charging?

Smart charging refers to the ability of a charger to communicate with the grid, user apps, and other systems in order to optimise how and when a vehicle is charged. This goes beyond simply delivering electricity—it’s about delivering it efficiently, affordably, and intelligently.

To ensure a safe and compliant installation, it is crucial to hire a qualified electrician who can handle the complexities of smart charger installations. Additionally, homeowners should communicate with their energy supplier to verify the feasibility of upgrading their electrical connection and to ensure proper billing for energy usage after installation.

Key Features of Smart Chargers

Scheduled Charging: Enables charging during off-peak hours when electricity rates are lower. This helps reduce energy costs and pressure on the grid.
Load Balancing: Dynamically adjusts charging power based on household demand, protecting the main fuse from overload.
Solar Integration: Matches charging output with solar production, maximising use of self-generated renewable energy.
App Control: Allows remote start/stop, charge monitoring, and notifications. Great for customers who want complete control.
Energy Monitoring: Tracks usage and costs over time—ideal for energy-conscious users or businesses managing multiple vehicles.
Installation Services: Booking installation services through the manufacturer ensures a qualified electrician handles the installation, which is crucial for functionality and safety.
Own Cable: Untethered smart chargers require users to supply their own cable, offering flexibility but requiring management of a separate cable.

Grid Integration & V2G (Vehicle-to-Grid)

Vehicle-to-Grid (V2G) systems allow EVs not only to draw power from the grid, but also to send it back. This creates a more dynamic and decentralised energy system. As of now, only select EVs and chargers support V2G, but the technology is gaining traction. Integrating V2G technology with the national grid can provide significant benefits, particularly during times of high demand for electricity.

The role of the distribution network operator (DNO) is crucial in V2G installations. It is important to submit an EV/HP application to the DNO to secure approval for installing an EV charger at home, as failing to do so can result in fines and legal action.

Benefits of V2G:

Stabilises local grid demand
Reduces overall energy costs
Allows energy trading and participation in demand-response programs

As an installer, offering advice on future-proofing for V2G compatibility is a major value-add.

Industry Developments and Trends

Staying ahead of the curve is what sets great installers apart. The EV industry evolves rapidly with new technology, regulations, and customer expectations. The UK government plays a significant role in supporting EV charging solutions through initiatives like the Electric Vehicle Homecharge Scheme (EVHS), which helps cover the costs of installing home charging points. Additionally, some car manufacturers provide free or discounted home chargers as part of their sales or leasing agreements for electric vehicles (EVs), making it easier for consumers to adopt this technology.

Emerging Technologies

Wireless Charging: Trials are underway for inductive charging pads embedded in parking bays—especially for taxi ranks and shared fleets.
Battery-as-a-Service (BaaS): In some markets, batteries can be leased separately from vehicles, allowing for quicker upgrades.
Portable EV Chargers: Ideal for breakdown services or mobile fleets.
Cloud-Connected Charge Management Systems: Enable remote diagnostics, software updates, and predictive maintenance.

Legislative Changes to Watch

Building Regulations (Part S): As of 2022, new-build homes and significant renovations in the UK must include provision for EV charging.
OZEV Grant Adjustments: Constant changes mean you must stay current with eligibility criteria and grant amounts.
Net Zero Goals: More aggressive targets could see increased public funding and incentives for installations.

Sustainability Trends

Integration with Battery Storage: Homes and businesses are combining EV charging with storage solutions to enhance energy independence.
Integration with Renewable Energy: Combining renewable energy sources like solar or wind with EV charging solutions can significantly reduce carbon footprints and promote sustainability.
Shared Charging: Platforms like Co Charger and JustCharge let individuals share their home chargers with neighbours.
Benefits of Shared Charging Platforms: Shared charging platforms can reduce costs, increase accessibility, and promote community collaboration in EV adoption.

Education and Training

As the technology evolves, so should your knowledge. Continuous learning is a cornerstone of staying relevant in the EV installation world.

Why Ongoing Training Is Crucial

Keeps you compliant with the latest wiring regulations (BS 7671, 18th Edition)
Ensures eligibility for grants and schemes
Boosts customer trust and credibility
Opens doors to commercial contracts and larger projects
Highlights the importance of CPD courses for continuous professional development
Discusses the benefits of renewable energy courses for EV charger installers

Recommended Training Pathways

City & Guilds 2919-01: The gold standard for EV charger installation in the UK.
CPD Courses: Offered by manufacturers, trade bodies (like NAPIT and NICEIC), and renewable energy associations.
Manufacturer-Specific Training: Brands like myenergi, Rolec, and EO offer tailored certification courses.
Renewable Energy Courses: Broaden your skill set to include solar PV, battery storage, and energy auditing.

Resources to Stay Informed

EV-focused publications: eFIXX, Renewable Energy Installer, Current±
Industry expos and webinars: Fully Charged Live, Solar & Storage Live
Podcasts and YouTube channels: Ideal for keeping current while on the move

Final Thoughts

Being an EV charger installer is about more than plugging in a box—it’s about enabling a cleaner, smarter future with electric vehicles. Whether you’re working on a single domestic installation or a multi-unit commercial setup, you play a key role in the UK’s transition to zero-emission transport by providing essential EV chargers.

Your ultimate toolkit includes:

In-depth technical knowledge of EV technology
Confidence with regulations and electrical systems
The ability to educate and guide your customers
Continuous professional development
A future-ready mindset

Master these elements, and you won’t just be keeping up with the industry—you’ll be leading it. The road ahead is electric, and your role is to make sure the journey is fully charged.

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