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EV Chargers5 min read12 February 2025

Benefits of Having an EV Charger at Home

A dedicated home EV charger is the most convenient and cost-effective way to charge your electric vehicle. Here's everything you need to know.

With electric vehicles becoming increasingly mainstream in the UK, a home EV charger is fast becoming as essential as a broadband connection. Relying on a 3-pin plug socket to charge your car is slow, inefficient and can place unnecessary strain on your home's wiring. A dedicated charge point transforms the EV ownership experience.


How Much Faster Is a Dedicated Charger?


A standard 3-pin plug provides around 2.3kW, which would charge a 60kWh battery from empty in around 26 hours. A dedicated 7kW home charger cuts that to around 8–9 hours — typically overnight. This means you leave home every morning with a full battery.


What Types of Home Charger Are Available?


7kW Single-Phase (Most Common)


The most popular option for domestic properties. Uses a single-phase 32A supply and charges most EVs overnight. Compatible with all major EV brands. Requires a 32A MCB in your consumer unit.


22kW Three-Phase


Much faster, but requires three-phase electricity supply to your property (less common in domestic settings). Charges most EVs in 1–3 hours. Check whether your property has three-phase supply before specifying this.


Tethered vs Untethered


  • Tethered — cable permanently attached to the charger. Convenient but you're tied to one cable type
  • Untethered — socket-only unit, you use your own cable. More flexible if you drive more than one EV type

Smart Features Worth Having


Modern EV chargers offer useful smart features:


  • Scheduled charging — charge overnight on cheaper off-peak tariffs (e.g. Octopus Go)
  • Solar integration — prioritise charging from your solar PV system
  • Load balancing — prevents the charger from overloading your supply
  • App control — start, stop and monitor charging remotely

Installation Requirements


A home EV charger installation requires:


1. Assessment of your consumer unit capacity (a 32A spare way is needed)

2. A dedicated 6mm² twin and earth cable from consumer unit to charger location

3. The charger mounted securely to a wall (garage, driveway or exterior wall)

4. Registration with OZEV (for grant eligibility, if applicable)


How Much Does Installation Cost?


A typical home EV charger supply and installation costs between £500 and £1,200 depending on the cable run length, charger specification and any required consumer unit work. Onyx Electrical Solutions provides free surveys and fixed-price quotes.


Call 07000 000000 to arrange an EV charger installation in Greater Manchester.

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