The devices, which it is estimated will save households between £70 and £110 per year, are set to go on shelves from 27 August as retailers and manufacturers complete final checks

The devices, which it is estimated will save households between £70 and £110 per year, are set to go on shelves from 27 August as retailers and manufacturers complete final checks

They could cut £100 a year off your energy bill, but only if you're using appliances during the day