EV home charging cost
Standard tariff vs EV overnight rate
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Frequently asked questions
How cheap is an EV overnight tariff?
Tariffs like Octopus Go offer overnight rates from around 7–9p/kWh — roughly 1/8th of public rapid charging.
Do I need a smart meter?
Yes — most EV-only off-peak tariffs require a smart meter to switch your rate at the right time of day.
What about public charging?
Public rapid chargers cost 65–85p/kWh — set your home/public mix slider to see the impact on your annual bill.