Households may be wondering what the peak times for electricity use are so that they can cut back on consumption.
In some cases, this will help people save money on their energy bills - although this can depend on the tariff that you are on.
It comes as the National Grid has warned UK households it could be a "challenging" winter. The electricity system operator has said there could be issues with supplies - especially during peak hours - and it may even have to implement three-hour power cuts during cold winter months, although this is "unlikely".