Home EV charging is one of the fastest-growing areas of domestic electrical work. Here are the most common questions we receive from homeowners across Greater Manchester.
Can I Charge My EV from a Standard 3-Pin Socket?
Yes, but it's slow and not recommended as your primary charging method. A standard 2.3kW charge from a 3-pin plug adds around 8 miles of range per hour. For most EVs, this means leaving the car plugged in all day for a full charge. A 7kW home charger adds around 30 miles per hour — much more practical.
Prolonged use of 3-pin socket EV charging can also stress the socket and wiring, which wasn't designed for sustained high-current loads.
How Much Does a Home EV Charger Cost to Install?
A typical 7kW home EV charger installation costs £600–£1,200 including the unit and installation. Factors affecting cost include:
- Cable run length from consumer unit to charger location
- Whether consumer unit upgrades are needed
- The charger brand and specification
- Whether groundwork (for a separate garage) is required
Government grants of up to £350 are available for eligible homeowners (OZEV EVCG).
How Long Does Installation Take?
For a straightforward installation — charger on an exterior wall with a short cable run — allow 2–4 hours. More complex installations (detached garage, long cable runs, consumer unit upgrade) take longer.
Where Should I Put My Home Charger?
The most common locations are:
- Driveway or front of house — convenient, requires weatherproof charger
- Garage wall — sheltered, keeps charger out of view
- Side of house — works well if parking is alongside the property
The charger should be as close as possible to your consumer unit to minimise cable run costs.
Do I Need to Upgrade My Consumer Unit?
If your consumer unit is modern with a spare 32A way available, no upgrade is needed. If it's full, an upgrade is required. Your electrician will assess this at survey stage.
Can I Get a Grant for an EV Charger?
The OZEV Electric Vehicle Chargepoint Grant (EVCG) provides 75% towards the cost of a home charger, up to £350. Eligibility requires:
- Owning, leasing or having ordered an eligible plug-in vehicle
- Property in England, Scotland or Wales
- Installation by an OZEV-registered installer
We are OZEV registered and apply the grant on your behalf.
Will My Electricity Bill Go Up?
Yes, but far less than the equivalent fuel cost. Charging a 60kWh battery from empty costs approximately £15–£24 at typical UK electricity rates, versus £90+ to fill a petrol tank with equivalent range. On an off-peak tariff (Octopus Go, etc.), costs reduce further to £6–£8.
Can I Charge From Solar Panels?
Yes — smart EV chargers can be configured to prioritise charging from solar PV generation. This requires a compatible charger and either a direct connection to your inverter or a solar monitoring system.
Onyx Electrical Solutions installs home EV chargers across Stockport and Greater Manchester. Call 07000 000000 for a free survey and quote.