Start with your daily driving
Most drivers cover 30–60 km a day. At roughly 15–18 kWh per 100 km that is only 5–11 kWh per day — a 3.3 kW charger replaces that in about three hours overnight.
Single-phase or three-phase?
- Single-phase homes can use chargers up to about 7 kW (needs a dedicated 32A circuit).
- Three-phase connections allow 11 kW or 22 kW — but only if your car accepts that much AC power.
The car's onboard charger matters
Many EVs accept 7 kW or 11 kW on AC. Installing a 22 kW wallbox for a car that only accepts 7 kW brings no benefit.
Safety first
Always use a qualified electrician, a dedicated circuit with correct breaker and earthing, and avoid extension leads.
Try the home charging calculator to see what fits your usage.