Octopus Energy is advising UK households to shift their electricity usage to between midnight and 4pm to save money on energy bills. The supplier highlights that this period sees a higher proportion of power from renewable sources and, for those on time-of-use tariffs, lower rates.
The company suggests using appliances like washing machines and dishwashers during off-peak hours. It notes that between midnight and 4pm, more of the UK's electricity comes from clean, green sources, and customers on day/night tariffs can benefit from cheaper night-time rates for overnight washes or EV charging.
However, Octopus Energy cautions that the savings depend on the tariff. Those on standard flat-rate tariffs pay the same price 24/7, while time-of-use tariffs such as Economy Seven or smart meter tariffs offer variable rates. Off-peak hours typically occur at night, often from midnight to 7am, while peak times are usually 7am-9am and 4pm-7pm.
To maximise savings, customers should check their bill to confirm their tariff type and exact off-peak hours. Using timers on appliances can help shift usage to cheaper periods. Octopus Energy advises that time-of-use tariffs only save money if at least 40% of electricity use is moved to off-peak times.



