The main difference is charging speed, and it comes down to your electricity supply.
7 kW charger (single-phase):
- Standard for UK homes — works with a normal single-phase electricity supply
- Charging speed — adds approximately 25–30 miles of range per hour
- Overnight charge — a typical EV can be fully charged from near-empty in 6–8 hours, which is more than achievable overnight
- Cost — typically £900–£1,200 installed
22 kW charger (three-phase):
- Requires three-phase electricity — this is rare in UK homes but common in commercial properties, farms, and some rural properties
- Charging speed — approximately 75–90 miles of range per hour
- Best for — commercial premises, fleet vehicles, or properties that already have a three-phase supply
- Cost — higher due to the charger and potentially the three-phase supply upgrade
Our recommendation:
For almost all domestic customers, a 7 kW charger is the right choice. It charges your car comfortably overnight and the cost is significantly lower. We only recommend 22 kW for commercial applications or homes that already have three-phase power.
