Electric vehicle charge point installation has moved from a niche extra for electricians to a steady stream of regular work. With EVs now accounting for a growing share of new car registrations in the UK, the question is not whether you will encounter EV charging jobs but how many per month.
Understanding the types of chargers, the installation requirements for each, and the differences between home, workplace, and portable setups is now genuinely useful trade knowledge. This guide covers the key categories and what differentiates them.
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Why This Matters Now
The UK government's Zero Emission Vehicle mandate means vehicle manufacturers must meet increasing EV sales targets through the mid-2020s and beyond. New homes built under Part S of the building regulations must already include EV charge point provision or cable routing where provision is absent. Commercial properties face parallel obligations under similar regulation.
For electricians, this means charge point work is not going away. It will grow. Understanding the technology is a prerequisite for quoting accurately, installing safely, and advising customers on what they actually need.
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The Three Levels of Charging Speed
Before looking at charger types, the speed categories are worth understanding because customers frequently confuse them.
Slow charging (up to 3.6 kW): This is a standard three-pin plug or an equivalent. A fully depleted average EV battery would take 20 to 30 hours to charge from zero this way. Fine for overnight top-ups of low-mileage vehicles. Not suitable as the primary charging method for most working households.
Fast charging (7 kW to 22 kW): This is the standard for home and workplace dedicated charger installations. A 7 kW wall-mounted unit will charge a typical EV with a 60 kWh battery from zero to full in roughly 8 to 9 hours. A 22 kW unit does it in 3 to 4 hours, but this requires three-phase supply and most residential properties only have single-phase. The practical choice for most domestic installs is 7 kW.
Rapid and ultra-rapid (50 kW to 350 kW and above): These are commercial and motorway service charging units. They can add 100 miles of range in 20 to 30 minutes on a rapid unit. They require significant infrastructure investment and specialist installation. Not domestic territory.
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Home EV Chargers
The standard domestic EV charger install in the UK is a 7 kW single-phase wall-mounted unit, also referred to as a Mode 3 charger. These units connect to a dedicated circuit, typically wired from the consumer unit with appropriate cable sizing and a suitable RCBO.
Most units in this category are 'smart' chargers that can communicate with a home energy management system, schedule charging during off-peak tariff hours, and report energy use. For customers on EV tariffs from their energy supplier, the smart scheduling function can represent meaningful cost savings.
OZEV grant scheme: The UK's OZEV-funded EV chargepoint grant supports installations for eligible customers. Installers wanting to access grant funding need to be approved under the scheme. This is worth clarifying with any domestic customer before quoting, as it affects pricing expectations.
What the install involves: Typically a new dedicated circuit from the consumer unit, appropriate cable run to the charger location (usually outside, often on a garage wall or at the front of the property), correct earthing arrangement per BS 7671, and commissioning of the smart functionality.
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Workplace EV Chargers
Workplace installations vary significantly depending on the building type, the number of vehicles to be accommodated, and whether the supply is single-phase or three-phase.
Small commercial (fewer than 10 spaces): Often handled with individual 7 kW units on dedicated circuits, similar to the domestic install in principle but with different regulatory requirements around metering, load management, and access control.
Larger commercial installations: Require load management systems to prevent the combined draw of multiple simultaneous charging sessions from exceeding supply capacity. Dynamic load management distributes available power across connected vehicles and prioritises accordingly.
Building regulations: Part S of the Building Regulations now requires EV charge point provision or cable infrastructure in new and substantially refurbished commercial buildings above a certain parking space threshold. This is driving retrofit demand as building owners seek compliance.
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Portable EV Chargers
Portable EV chargers are a distinct category, and the name covers two different things that are sometimes confused.
The first is a portable Mode 2 cable, which is a charging lead with a control box that connects between the vehicle and a standard 13A or 16A plug. These are the emergency or travel option. They charge slowly and are not suited to daily use. Most new EVs come with one in the boot.
The second is a standalone portable unit suitable for outdoor events, temporary site installations, or locations where a permanent fixed charger is impractical. These are more specialised and less commonly encountered in general trade work.
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Connector Types
UK EV drivers encounter two main connector standards.
Type 2 (Mennekes): This is the standard AC connector used for home and workplace charging in the UK and Europe. Seven-pin, round-ish, and specified in the EVSE regulations as the required socket type for new charge points with sockets (as opposed to tethered cables).
CCS (Combined Charging System): This is the standard for DC rapid charging. The CCS connector combines the Type 2 AC pins with two additional DC pins below. Most modern EVs have a CCS port for rapid charging and use a Type 2 lead for standard AC charging.
CHAdeMO: An older DC rapid charging standard, associated particularly with Nissan and some older Japanese EVs. It is declining in prevalence as CCS becomes dominant.
For domestic and standard commercial installs, Type 2 is what you need to understand. CCS is rapid charging territory.
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Cable Sizing and Technical Considerations
A 7 kW single-phase install draws approximately 32A. Cable sizing needs to account for the run length, the installation method (whether clipped direct, in conduit, or buried), and any diversity calculation. Standard domestic installs commonly use 6mm2 cable, but the specific calculation depends on the run.
Outdoor installations require weatherproofing to at least IP44, and many installers and customers opt for IP65 or IP66 rated units given the UK weather.
Earth electrode requirements have evolved with the 18th edition amendment and subsequent BS 7671 updates. Understanding the earthing arrangement for each installation is essential rather than assumed.
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