Electric vehicle (EV) ownership across the East Midlands is growing rapidly. If you have recently made the switch to an electric vehicle, or are planning to do so shortly, installing a dedicated home charging point is the most important upgrade you can make to your property.
Charging your car at home is safer, up to several times cheaper than using public rapid chargers, and incredibly convenient. However, when you begin researching home charging points, the sheer variety of options can feel overwhelming. From choosing between tethered and untethered units to understanding charging speeds and smart solar integration, there are several key technical factors to consider.
To help you make the right choice, this complete guide breaks down the essential features of modern domestic EV chargers and outlines how to select the perfect unit for your home.
1. Tethered vs. Untethered: Understanding Cable Styles
The first design decision you will need to make is whether to install a tethered or an untethered EV charger:
- Tethered Chargers: These units come with a charging cable permanently attached to the wall box (typically five to seven metres in length). When you park, you simply pull the cable off its holster and plug it straight into your car. It is the ultimate choice for convenience, though you are physically restricted to the cable length supplied.
- Untethered Chargers (Socket Only): These units do not have an attached cable. Instead, they feature a universal Type 2 socket. To charge, you must retrieve your car’s portable charging cable from the boot, plug it into the wall box, and then plug it into the car. While it requires slightly more effort, untethered chargers are highly aesthetic because there are no messy cables coiled on your wall. They are also future-proof, allowing visitors with different vehicle plug types to connect using their own cables.
2. Charging Speeds: 7kW vs. 22kW explained
Home EV chargers are classified by their power output, which determines how quickly they can replenish your vehicle’s battery:
- 7.4kW Chargers (Single-Phase): This is the standard installation limit for the vast majority of UK residential properties. A 7.4kW home charger will charge a typical electric vehicle from empty to full in approximately eight to ten hours (making it perfect for overnight charging).
- 22kW Chargers (Three-Phase): These chargers are up to three times faster, but they require a three-phase electrical supply. Three-phase power is standard in commercial properties and industrial units but is exceptionally rare in domestic UK homes. Upgrading a domestic property to three-phase power can be highly expensive, meaning a 7.4kW single-phase unit remains the most sensible and practical choice for homeowners.
3. Smart App Integration and Off-Peak Tariffs
Modern UK regulations mandate that all new home chargers must be “smart” units. This means they connect to your home Wi-Fi network, allowing you to monitor and control your charging sessions via a smartphone application.
The primary benefit of a smart charger is the ability to schedule your charging. Many energy providers now offer dedicated EV tariffs with significantly cheaper electricity rates during off-peak hours (typically between midnight and 5:00 am). By setting your smart app to only charge during these hours, you can dramatically lower your driving costs, saving hundreds of pounds over the course of a year.
4. Solar Power Integration: Driving on Sunshine
If your home is equipped with solar panels, or if you are considering installing them in the future, choosing a solar-compatible EV charger is an outstanding investment.
Standard chargers draw power directly from the National Grid. A solar-integrated smart charger (such as the Myenergi Zappi) connects directly to your solar PV system. It monitors your household power consumption and redirects any excess solar energy (power that would otherwise be exported back to the grid) straight into your car’s battery. This allows you to charge your vehicle using 100% free, self-generated green energy.
The Importance of NICEIC Approved Installation
Installing a home EV charger involves high-voltage electrical engineering and must always be carried out by a qualified professional. A poorly installed charger can overload your home’s electrical consumer unit, damage your car’s sensitive battery, or pose a serious fire hazard.
At Newton Electrical and Mechanical (NEM Services), we manage your installation as a complete turnkey project:
- NICEIC Certified Workmanship: As NICEIC Approved Contractors, our in-house electrical division ensures your home charger is wired safely, complies fully with BS7671 wiring regulations, and is registered correctly with the local electrical distribution network operator (DNO).
- OZEV Grant Support: We guide domestic clients through current government funding streams, helping eligible homeowners and occupants of flats or rented properties access OZEV grants to offset the purchase and installation costs.
- Turnkey Multi-Discipline Integration: Because our local team spans electrical, plumbing, and mechanical disciplines under one roof, we coordinate any required secondary works (such as earthing rod installations, ground trenching, or main fuse box upgrades) seamlessly without technical delays or third-party subcontractor fees.
Request Your Home Charging Survey
Ready to make home charging simple, safe, and cost-effective? Contact our friendly local electrical team today to discuss your property layout and arrange your personalized home charging survey.
- Telephone: 01455 230 114
- Online: Complete our brief website contact form to book a convenient home consultation with one of our certified EV charging specialists.