How many km a night of home charging adds
A 7 kW home charger adds about 33 to 46 km an hour, depending on the car. In a 3-hour EV tariff window that's about 100 to 137 km, more than most people drive in a day.
In a 3-hour EV tariff window and over a whole night, car by car.
Free, no obligation. One registered electrician prices it, not five.
- 115 km3 hours on 7 kW, Model Y
- 346 km9 hours on 7 kW
- 110 km9 hours on a 3-pin plug
- 2am–5ama typical EV tariff window
km a night
| Car | 3 hours, 7 kW | 9 hours, 7 kW | 9 hours, 3-pin plug |
|---|---|---|---|
| Tesla Model Y | 115 km | 346 km | 110 km |
| Tesla Model 3 | 137 km | 410 km | 130 km |
| Volkswagen ID.4 | 101 km | 303 km | 96 km |
| Toyota bZ4X | 105 km | 316 km | 100 km |
| Skoda Elroq | 110 km | 329 km | 103 km |
| Kia EV3 | 109 km | 328 km | 103 km |
| Hyundai Kona Electric | 110 km | 330 km | 103 km |
| Renault 5 | 116 km | 348 km | 111 km |
| Nissan Leaf | 100 km | 300 km | 105 km |
A night rate typically runs from 11pm to 8am. On most EV tariffs the cheap window runs from 2am to 5am; some run 2am to 4am, 2am to 6am, or 11pm to 5am.
How long will your car take at home?
Four quick taps. You see the hours a night on a 3-pin plug and on a 7 kW charger, and whether the cheap hours are enough. Your number is only asked for at the end, if you want a price.
A Tesla Model Y doing up to 60 km a day: 1h 35m a night on a 7 kW charger, 4h 55m on a 3-pin plug.
How this is worked out
Each car's figures are its usable battery, its on-board charger and its real-world energy use, with its time from empty to full on a 3-pin plug (2.3 kW), on a 7 kW home charger (7.4 kW on a single-phase supply) and at 11 kW. The hours a night are your daily km divided by the km each hour of charging adds. Cold weather and short trips use more. It's a guide, not a promise.
Make it fit
Set the charger or the car to start in the cheap window. What that saves: EV tariffs explained.
EV Home Chargers guides & price breakdowns
Straight answers to what people ask most: itemised costs, specifications, planning or grants, and what to check before you book.
More guides & resources: Charging a Kia EV3 at home · Charging a Hyundai Kona Electric at home · Charging a Renault 5 at home · Charging a Nissan Leaf at home · All guides & calculator hub · Technical & trade glossary · Frequently asked questions · What charging costs · EV tariffs · Installers by county · Claiming the grant · No driveway?
Questions people ask
How many km does an overnight charge add?
A 7 kW home charger adds about 33 to 46 km an hour, depending on the car. In a 3-hour EV tariff window that's about 100 to 137 km, more than most people drive in a day.
Will my car be full by morning?
On a 7 kW charger over a full night, almost always. In a 3-hour window you put back about a day's driving, not a full battery.
EV Home Chargers across all 26 counties
Requests from all 26 counties go to one vetted local specialist who covers your county — from Dublin, Cork, Galway and Limerick to Kildare, Meath, Wicklow, Waterford and Donegal. Pick your county below for local prices, specifications and advice.
How long will yours take?
Four taps to the hours a night on a plug and on a charger. Then, if you want, one registered electrician who fits home chargers in your county rings with a price.