How to save money with time-of-use tariffs

What is a time-of-use (ToU) tariff and how does it work?

A time-of-use (ToU) tariff means the price of electricity varies depending on the time of day. You pay less when electricity demand across Ireland is lower like at night or weekends. But you pay more during busy daytime peak hours.

Here’s a typical breakdown of a standard time-of-use tariff:

🟢 Night rate (Cheapest)

11pm – 8am (Monday to Sunday)

A great time for running dishwashers, washing machines, tumble dryers, or charging electric vehicles (EVs).

🟡 Day rate standard (Moderate cost)

8am – 5pm and 7pm – 11pm (Weekdays)

Try to reduce use during this time if you can.

🔴 Peak rate (Most expensive)

5pm – 7pm (Weekdays only)

Avoid using large appliances like ovens and electric showers if possible.