When is the cheapest time to use electricity?
If you're on the right tariff, shifting when you use power can cut your bills. Here's how time-of-use works.
Not all electricity costs the same at all times. With certain tariffs, using power at off-peak times is significantly cheaper. Here's how to make it work for you.
How time-of-use tariffs work
Some tariffs (like Economy 7 or newer smart/time-of-use tariffs) charge less during off-peak hours — typically overnight — and more during peak times. If you're on one, shifting heavy usage to the cheap window saves money.
What to shift to off-peak
- Running the dishwasher and washing machine (use delay timers).
- Charging an electric vehicle.
- Charging a home battery, if you have one.
- Heating water via an immersion timer.
- Running the tumble dryer (where unavoidable).
Is it worth switching tariffs?
It depends on your routine. If a lot of your usage can move to off-peak — or you have an EV or home battery — a time-of-use tariff can save real money. If your usage is mostly daytime/evening and can't shift, a standard tariff may suit better. Check the peak/off-peak rates before switching.
Pairs well with a battery
A home battery lets you charge up on cheap off-peak electricity and run your home from it during expensive peak hours — effectively shifting all your usage to the cheap rate.
More practical advice in our Insights & Guides.